DE4026363A1 - 1- (N'-CYANOGUANYL) DERIVATIVES OF N-CONTAINING FUENFRINGHETEROCYCLES - Google Patents
1- (N'-CYANOGUANYL) DERIVATIVES OF N-CONTAINING FUENFRINGHETEROCYCLESInfo
- Publication number
- DE4026363A1 DE4026363A1 DE19904026363 DE4026363A DE4026363A1 DE 4026363 A1 DE4026363 A1 DE 4026363A1 DE 19904026363 DE19904026363 DE 19904026363 DE 4026363 A DE4026363 A DE 4026363A DE 4026363 A1 DE4026363 A1 DE 4026363A1
- Authority
- DE
- Germany
- Prior art keywords
- cyanoguanyl
- derivatives
- reaction
- accelerator
- epoxy resin
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- -1 N'-CYANOGUANYL Chemical class 0.000 title claims description 11
- 239000003822 epoxy resin Substances 0.000 claims description 16
- 229920000647 polyepoxide Polymers 0.000 claims description 16
- 150000001875 compounds Chemical class 0.000 claims description 15
- RAXXELZNTBOGNW-UHFFFAOYSA-N imidazole Natural products C1=CNC=N1 RAXXELZNTBOGNW-UHFFFAOYSA-N 0.000 claims description 15
- KAESVJOAVNADME-UHFFFAOYSA-N Pyrrole Chemical compound C=1C=CNC=1 KAESVJOAVNADME-UHFFFAOYSA-N 0.000 claims description 10
- 125000000623 heterocyclic group Chemical group 0.000 claims description 10
- 238000006243 chemical reaction Methods 0.000 claims description 9
- QGBSISYHAICWAH-UHFFFAOYSA-N dicyandiamide Chemical compound NC(N)=NC#N QGBSISYHAICWAH-UHFFFAOYSA-N 0.000 claims description 9
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 8
- 239000002253 acid Substances 0.000 claims description 8
- QWJNFFYFEKXZBF-UHFFFAOYSA-N cyanocyanamide Chemical compound N#CNC#N QWJNFFYFEKXZBF-UHFFFAOYSA-N 0.000 claims description 8
- 239000011734 sodium Substances 0.000 claims description 8
- 229910052708 sodium Inorganic materials 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 7
- 238000002360 preparation method Methods 0.000 claims description 7
- 150000007513 acids Chemical class 0.000 claims description 5
- 125000004432 carbon atom Chemical group C* 0.000 claims description 4
- 239000004849 latent hardener Substances 0.000 claims description 4
- NSPMIYGKQJPBQR-UHFFFAOYSA-N 4H-1,2,4-triazole Chemical compound C=1N=CNN=1 NSPMIYGKQJPBQR-UHFFFAOYSA-N 0.000 claims description 3
- 230000008569 process Effects 0.000 claims description 3
- 125000001376 1,2,4-triazolyl group Chemical group N1N=C(N=C1)* 0.000 claims description 2
- 239000012736 aqueous medium Substances 0.000 claims description 2
- 239000007864 aqueous solution Substances 0.000 claims description 2
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 11
- 239000000203 mixture Substances 0.000 description 10
- 238000003860 storage Methods 0.000 description 10
- 239000000047 product Substances 0.000 description 9
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 description 8
- 238000000921 elemental analysis Methods 0.000 description 8
- 239000007795 chemical reaction product Substances 0.000 description 5
- 238000009472 formulation Methods 0.000 description 5
- LYCAIKOWRPUZTN-UHFFFAOYSA-N ethylene glycol Natural products OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 4
- 150000002460 imidazoles Chemical class 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 238000002844 melting Methods 0.000 description 4
- 230000008018 melting Effects 0.000 description 4
- 239000000843 powder Substances 0.000 description 4
- 239000002904 solvent Substances 0.000 description 4
- 229920001187 thermosetting polymer Polymers 0.000 description 4
- KUBDPQJOLOUJRM-UHFFFAOYSA-N 2-(chloromethyl)oxirane;4-[2-(4-hydroxyphenyl)propan-2-yl]phenol Chemical compound ClCC1CO1.C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 KUBDPQJOLOUJRM-UHFFFAOYSA-N 0.000 description 3
- 239000006227 byproduct Substances 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- LNEPOXFFQSENCJ-UHFFFAOYSA-N haloperidol Chemical compound C1CC(O)(C=2C=CC(Cl)=CC=2)CCN1CCCC(=O)C1=CC=C(F)C=C1 LNEPOXFFQSENCJ-UHFFFAOYSA-N 0.000 description 3
- 239000012948 isocyanate Substances 0.000 description 3
- 150000002513 isocyanates Chemical class 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000155 melt Substances 0.000 description 3
- VYKZJCJOQZWKAH-UHFFFAOYSA-N n'-cyano-2-methylimidazole-1-carboximidamide Chemical compound CC1=NC=CN1C(N)=NC#N VYKZJCJOQZWKAH-UHFFFAOYSA-N 0.000 description 3
- WIMUTXRYGXWKDC-UHFFFAOYSA-N n'-cyanoimidazole-1-carboximidamide Chemical compound N#CN=C(N)N1C=CN=C1 WIMUTXRYGXWKDC-UHFFFAOYSA-N 0.000 description 3
- 239000004848 polyfunctional curative Substances 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 125000001424 substituent group Chemical group 0.000 description 3
- LXBGSDVWAMZHDD-UHFFFAOYSA-N 2-methyl-1h-imidazole Chemical compound CC1=NC=CN1 LXBGSDVWAMZHDD-UHFFFAOYSA-N 0.000 description 2
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- ROSDSFDQCJNGOL-UHFFFAOYSA-N Dimethylamine Chemical compound CNC ROSDSFDQCJNGOL-UHFFFAOYSA-N 0.000 description 2
- 239000004721 Polyphenylene oxide Substances 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 150000001412 amines Chemical class 0.000 description 2
- 125000003118 aryl group Chemical group 0.000 description 2
- PXKLMJQFEQBVLD-UHFFFAOYSA-N bisphenol F Chemical compound C1=CC(O)=CC=C1CC1=CC=C(O)C=C1 PXKLMJQFEQBVLD-UHFFFAOYSA-N 0.000 description 2
- WTEOIRVLGSZEPR-UHFFFAOYSA-N boron trifluoride Chemical compound FB(F)F WTEOIRVLGSZEPR-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 125000003055 glycidyl group Chemical group C(C1CO1)* 0.000 description 2
- 238000011835 investigation Methods 0.000 description 2
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 description 2
- 229920000570 polyether Polymers 0.000 description 2
- 230000009257 reactivity Effects 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- YGSDEFSMJLZEOE-UHFFFAOYSA-N salicylic acid Chemical compound OC(=O)C1=CC=CC=C1O YGSDEFSMJLZEOE-UHFFFAOYSA-N 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- JYEUMXHLPRZUAT-UHFFFAOYSA-N 1,2,3-triazine Chemical compound C1=CN=NN=C1 JYEUMXHLPRZUAT-UHFFFAOYSA-N 0.000 description 1
- ARXJGSRGQADJSQ-UHFFFAOYSA-N 1-methoxypropan-2-ol Chemical compound COCC(C)O ARXJGSRGQADJSQ-UHFFFAOYSA-N 0.000 description 1
- VBICKXHEKHSIBG-UHFFFAOYSA-N 1-monostearoylglycerol Chemical compound CCCCCCCCCCCCCCCCCC(=O)OCC(O)CO VBICKXHEKHSIBG-UHFFFAOYSA-N 0.000 description 1
- ROHTVIURAJBDES-UHFFFAOYSA-N 2-n,2-n-bis(prop-2-enyl)-1,3,5-triazine-2,4,6-triamine Chemical compound NC1=NC(N)=NC(N(CC=C)CC=C)=N1 ROHTVIURAJBDES-UHFFFAOYSA-N 0.000 description 1
- JSIAIROWMJGMQZ-UHFFFAOYSA-N 2h-triazol-4-amine Chemical class NC1=CNN=N1 JSIAIROWMJGMQZ-UHFFFAOYSA-N 0.000 description 1
- VEORPZCZECFIRK-UHFFFAOYSA-N 3,3',5,5'-tetrabromobisphenol A Chemical compound C=1C(Br)=C(O)C(Br)=CC=1C(C)(C)C1=CC(Br)=C(O)C(Br)=C1 VEORPZCZECFIRK-UHFFFAOYSA-N 0.000 description 1
- XMTQQYYKAHVGBJ-UHFFFAOYSA-N 3-(3,4-DICHLOROPHENYL)-1,1-DIMETHYLUREA Chemical compound CN(C)C(=O)NC1=CC=C(Cl)C(Cl)=C1 XMTQQYYKAHVGBJ-UHFFFAOYSA-N 0.000 description 1
- GZVHEAJQGPRDLQ-UHFFFAOYSA-N 6-phenyl-1,3,5-triazine-2,4-diamine Chemical compound NC1=NC(N)=NC(C=2C=CC=CC=2)=N1 GZVHEAJQGPRDLQ-UHFFFAOYSA-N 0.000 description 1
- KLSJWNVTNUYHDU-UHFFFAOYSA-N Amitrole Chemical compound NC1=NC=NN1 KLSJWNVTNUYHDU-UHFFFAOYSA-N 0.000 description 1
- 229910015900 BF3 Inorganic materials 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- MQJKPEGWNLWLTK-UHFFFAOYSA-N Dapsone Chemical compound C1=CC(N)=CC=C1S(=O)(=O)C1=CC=C(N)C=C1 MQJKPEGWNLWLTK-UHFFFAOYSA-N 0.000 description 1
- 239000005510 Diuron Substances 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- DCXXMTOCNZCJGO-UHFFFAOYSA-N Glycerol trioctadecanoate Natural products CCCCCCCCCCCCCCCCCC(=O)OCC(OC(=O)CCCCCCCCCCCCCCCCC)COC(=O)CCCCCCCCCCCCCCCCC DCXXMTOCNZCJGO-UHFFFAOYSA-N 0.000 description 1
- 229920000877 Melamine resin Polymers 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- NJYZCEFQAIUHSD-UHFFFAOYSA-N acetoguanamine Chemical compound CC1=NC(N)=NC(N)=N1 NJYZCEFQAIUHSD-UHFFFAOYSA-N 0.000 description 1
- IBVAQQYNSHJXBV-UHFFFAOYSA-N adipic acid dihydrazide Chemical compound NNC(=O)CCCCC(=O)NN IBVAQQYNSHJXBV-UHFFFAOYSA-N 0.000 description 1
- 125000001931 aliphatic group Chemical group 0.000 description 1
- 125000003368 amide group Chemical group 0.000 description 1
- 239000008346 aqueous phase Substances 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- UTTHLMXOSUFZCQ-UHFFFAOYSA-N benzene-1,3-dicarbohydrazide Chemical compound NNC(=O)C1=CC=CC(C(=O)NN)=C1 UTTHLMXOSUFZCQ-UHFFFAOYSA-N 0.000 description 1
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 description 1
- 229910052794 bromium Inorganic materials 0.000 description 1
- 125000001246 bromo group Chemical group Br* 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 150000001805 chlorine compounds Chemical class 0.000 description 1
- DGJMPUGMZIKDRO-UHFFFAOYSA-N cyanoacetamide Chemical compound NC(=O)CC#N DGJMPUGMZIKDRO-UHFFFAOYSA-N 0.000 description 1
- GYZLOYUZLJXAJU-UHFFFAOYSA-N diglycidyl ether Chemical compound C1OC1COCC1CO1 GYZLOYUZLJXAJU-UHFFFAOYSA-N 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- XXOYNJXVWVNOOJ-UHFFFAOYSA-N fenuron Chemical compound CN(C)C(=O)NC1=CC=CC=C1 XXOYNJXVWVNOOJ-UHFFFAOYSA-N 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 125000005842 heteroatom Chemical group 0.000 description 1
- 229940042795 hydrazides for tuberculosis treatment Drugs 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 150000007928 imidazolide derivatives Chemical class 0.000 description 1
- 238000002329 infrared spectrum Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 229940079865 intestinal antiinfectives imidazole derivative Drugs 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- BMLIZLVNXIYGCK-UHFFFAOYSA-N monuron Chemical compound CN(C)C(=O)NC1=CC=C(Cl)C=C1 BMLIZLVNXIYGCK-UHFFFAOYSA-N 0.000 description 1
- VFCSXTWZGZFHQP-UHFFFAOYSA-N n'-cyano-1,2,4-triazole-1-carboximidamide Chemical compound N#CN=C(N)N1C=NC=N1 VFCSXTWZGZFHQP-UHFFFAOYSA-N 0.000 description 1
- PRAXOLUUMVHOGK-UHFFFAOYSA-N n'-cyanopyrrole-1-carboximidamide Chemical compound N#CN=C(N)N1C=CC=C1 PRAXOLUUMVHOGK-UHFFFAOYSA-N 0.000 description 1
- 125000004433 nitrogen atom Chemical group N* 0.000 description 1
- 229920003986 novolac Polymers 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- FJKROLUGYXJWQN-UHFFFAOYSA-N papa-hydroxy-benzoic acid Natural products OC(=O)C1=CC=C(O)C=C1 FJKROLUGYXJWQN-UHFFFAOYSA-N 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 229920000768 polyamine Polymers 0.000 description 1
- 239000011541 reaction mixture Substances 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 229960004889 salicylic acid Drugs 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- DUIOPKIIICUYRZ-UHFFFAOYSA-N semicarbazide Chemical compound NNC(N)=O DUIOPKIIICUYRZ-UHFFFAOYSA-N 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 238000004809 thin layer chromatography Methods 0.000 description 1
- QQOWHRYOXYEMTL-UHFFFAOYSA-N triazin-4-amine Chemical class N=C1C=CN=NN1 QQOWHRYOXYEMTL-UHFFFAOYSA-N 0.000 description 1
- FAQYAMRNWDIXMY-UHFFFAOYSA-N trichloroborane Chemical compound ClB(Cl)Cl FAQYAMRNWDIXMY-UHFFFAOYSA-N 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 238000010626 work up procedure Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D207/00—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom
- C07D207/02—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with only hydrogen or carbon atoms directly attached to the ring nitrogen atom
- C07D207/30—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having two double bonds between ring members or between ring members and non-ring members
- C07D207/32—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having two double bonds between ring members or between ring members and non-ring members with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to ring carbon atoms
- C07D207/325—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having two double bonds between ring members or between ring members and non-ring members with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to ring carbon atoms with substituted hydrocarbon radicals directly attached to the ring nitrogen atom
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D231/00—Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings
- C07D231/02—Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings not condensed with other rings
- C07D231/10—Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members
- C07D231/12—Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to ring carbon atoms
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D233/00—Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, not condensed with other rings
- C07D233/54—Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, not condensed with other rings having two double bonds between ring members or between ring members and non-ring members
- C07D233/56—Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, not condensed with other rings having two double bonds between ring members or between ring members and non-ring members with only hydrogen atoms or radicals containing only hydrogen and carbon atoms, attached to ring carbon atoms
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D249/00—Heterocyclic compounds containing five-membered rings having three nitrogen atoms as the only ring hetero atoms
- C07D249/02—Heterocyclic compounds containing five-membered rings having three nitrogen atoms as the only ring hetero atoms not condensed with other rings
- C07D249/08—1,2,4-Triazoles; Hydrogenated 1,2,4-triazoles
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G59/00—Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
- C08G59/18—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing
- C08G59/68—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing characterised by the catalysts used
- C08G59/686—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing characterised by the catalysts used containing nitrogen
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Epoxy Resins (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Plural Heterocyclic Compounds (AREA)
Description
Gegenstand der vorliegenden Erfindung sind 1-(N′- Cyanoguanyl)-Derivate von N-haltigen Fünfringheterozyklen, Verfahren zu ihrer Herstellung sowie ihre Anwendung bei der Härtung von Epoxidharzen.The present invention relates to 1- (N'- Cyanoguanyl) derivatives of N-containing Five-ring heterocycles, process for their preparation as well as their application in the curing of epoxy resins.
Für lagerstabile Epoxidharzgemische werden bekanntermaßen Urone (Monuron, Diuron, Fenuron etc.) beispielsweise in Kombination mit Dicyandiamid eingesetzt (vgl. US 35 62 215 sowie 39 56 237). Nachteilig bei den Uronen ist die Verwendung von Isocyanaten bei der Herstellung dieser Produkte sowie die Tatsache, daß beim Härtevorgang gasförmiges Dimethylamin zum Teil freigesetzt wird.As is known, for storage-stable epoxy resin mixtures Urons (monuron, diuron, fenuron etc.) for example in Combination with dicyandiamide used (cf. US 35 62 215 and 39 56 237). A disadvantage of the Urones is the use of isocyanates in the Manufacture of these products and the fact that at Partial hardening process of gaseous dimethylamine is released.
Alternativ können Imidazole beispielsweise gemäß der GB-PS 10 50 679 hergestellt werden, doch besitzen sie nur eine begrenzte Lagerstabilität, was bei vielen Anwendungen Probleme bereitet.Alternatively, imidazoles, for example, according to GB-PS 10 50 679 are produced, but they do limited shelf life, which is what many Application problems.
Um diesem Problem zu begegnen, wurden verschiedene Imidazol-Derivate beschrieben, wie z. B. Imidazolide (N-Acylimidazole) (vgl. DE-OS 32 46 072) sowie mit Isocyanaten blockierte Imidazole. Beide Verbindungstypen müssen sehr aufwendig durch Umsetzung mit speziellen Säurechloriden (unter HCl-Freisetzung) bzw. mit Isocyanaten produziert werden.To deal with this problem, there have been several Imidazole derivatives described, such as. B. Imidazolides (N-acylimidazoles) (cf. DE-OS 32 46 072) and with Isocyanate blocked imidazoles. Both types of connections have to be very complex due to implementation with special Acid chlorides (with HCl release) or with Isocyanates are produced.
Schließlich sind aus der DE-OS 39 19 431 Additive für hitzehärtbare Epoxidharzmassen bekannt, die Addukte oder Umsetzungsprodukte von gegebenenfalls substituierten Imidazolen mit aromatischen Hydroxysäuren wie z. B. Salicylsäure darstellen. Diese Produkte weisen ebenfalls nur eine begrenzte Lagerstabilität auf.Finally, from DE-OS 39 19 431 additives for thermosetting epoxy resin compositions known, the adducts or Reaction products of optionally substituted imidazoles with aromatic hydroxy acids such as B. salicylic acid represent. These products also have only one limited storage stability.
Der vorliegenden Erfindung lag daher die Aufgabe zugrunde, neue Verbindungen zu entwickeln, die relativ einfach und kostengünstig herzustellen sind und als reaktive und lagerstabile Additive für hitzehärtbare Epoxidharzmassen eingesetzt werden können.The object of the present invention was therefore based on developing new connections that are relative are simple and inexpensive to manufacture and as reactive and storage stable additives for thermosetting Epoxy resin compounds can be used.
Diese Aufgabe wurde erfindungsgemäß gelöst durch die Bereitstellung von 1-(N′-Cyanoguanyl)-Derivaten von N- haltigen Fünfringheterozyklen der FormelThis object was achieved by the Provision of 1- (N′-cyanoguanyl) derivatives of N- containing five-ring heterocycles of the formula
wobei
X=N, CR₃
Y=N, CR₄
R₁-R₄=H, Alkylreste mit 1 bis 4
C-Atomen oder Phenylreste
bedeuten.in which
X = N, CR₃
Y = N, CR₄
R₁-R₄ = H, alkyl radicals having 1 to 4 carbon atoms or phenyl radicals.
Es hat sich nämlich überraschenderweise gezeigt, daß diese Verbindungen aufgrund ihrer hohen Reaktivität und guten Lagerstabilität hervorragend als Beschleuniger bei der Härtung von Epoxidharzmassen eingesetzt werden können.Surprisingly, it has been shown that these compounds because of their high reactivity and good storage stability excellent as an accelerator the curing of epoxy resin compounds can.
Die erfindungsgemäßen Verbindungen bestehen aus einem N′-Cyanoguanylrest, wobei dessen N-Atom in einen Fünfring-Heterozyklus integriert ist. Der Fünfring- Heterozyklus kann im Rahmen der vorliegenden Erfindung entweder ein Imidazol-, ein Pyrrol- oder ein 1,2,4- Triazol-Ring sein. Der jeweilige Fünfringheterozyklus kann hierbei völlig unsubstituiert sein (R₁, gegebenenfalls R₂ und R₄ sowie R₃=H) oder aber je nach Zahl und Art der Heteroatome noch Substituenten R₁ bis R₄ an den C-Atomen tragen. Als Substituenten kommen vor allem verzweigte oder unverzweigte Alkylreste mit 1 bis 4 C-Atomen sowie Phenylreste in Frage. Als besonders bevorzugt sind hierbei Methyl- oder Ethylreste anzusehen.The compounds according to the invention consist of a N'-Cyanoguanylrest, wherein its N atom in one Five-ring heterocycle is integrated. The five-ring Heterocycle can be within the scope of the present invention either an imidazole, a pyrrole or a 1,2,4- Triazole ring. The respective five-ring heterocycle can be completely unsubstituted (R₁, optionally R₂ and R₄ and R₃ = H) or depending on the number and type of Heteroatoms still substituents R₁ to R₄ on the C atoms wear. Above all branched come as substituents or unbranched alkyl radicals with 1 to 4 carbon atoms and Phenyl residues in question. Are particularly preferred to look at methyl or ethyl radicals.
Die erfindungsgemäßen Verbindungen lassen sich einfach und problemlos durch Umsetzung von Natriumdicyanimid mit dem entsprechenden Imidazol, Pyrrol oder 1,2,4-Triazol bei erhöhter Temperatur in Gegenwart von Säuren herstellen.The compounds of the invention are simple and easily by reacting with sodium dicyanimide the corresponding imidazole, pyrrole or 1,2,4-triazole at elevated temperature in the presence of acids produce.
Die Umsetzung kann sowohl im Schmelzfluß als auch in einem geeigneten Lösemittel vorgenommen werden. Als Lösemittel können im Prinzip alle organischen Lösemittel eingesetzt werden, in denen die heterozyklische Komponente eine ausreichende Löslichkeit besitzt. Aus wirtschaftlichen Gründen hat es sich als besonders vorteilhaft erwiesen, die Reaktion in wäßrigem Medium durchzuführen, weil sich beide Ausgangskomponenten in Wasser lösen und die Aufarbeitung des Reaktionsproduktes dann besonders einfach erfolgen kann. Die Konzentration wird hierbei vorzugsweise auf 5 bis 50 Gew.-% bezogen auf die beiden Ausgangskomponenten eingestellt.The reaction can take place both in the melt flow and in a suitable solvent. As In principle, solvents can be all organic solvents are used in which the heterocyclic Component has sufficient solubility. Out economic reasons it has turned out to be special proven advantageous, the reaction in aqueous medium carry out because both starting components in Dissolve water and work up the reaction product then can be done particularly easily. The concentration is preferably based on 5 to 50 wt .-% the two output components are set.
Die Reaktionstemperatur kann in weiten Grenzen variiert werden, wobei Temperaturen von 25 bis 100°C, insbesondere 40 bis 80°C, als bevorzugt anzusehen sind.The reaction temperature can vary within wide limits be, temperatures from 25 to 100 ° C, in particular 40 to 80 ° C, are to be regarded as preferred.
Für die Umsetzung ist die Zugabe von Säuren erforderlich, wobei äquimolare Mengen bezogen auf das Natriumdicyanimid in der Regel ausreichend sind. Als Säuren werden aus Kostengründen vorzugsweise die üblichen Mineralsäuren wie z. B. Salzsäure, Schwefelsäure o. ä. eingesetzt. Arbeitet man in wäßriger Lösung, empfiehlt es sich, den pH-Wert auf 1 bis 6 einzustellen. The addition of acids is required for the reaction, where equimolar amounts based on the sodium dicyanimide are usually sufficient. As acids are made For reasons of cost, the usual mineral acids such as e.g. B. hydrochloric acid, sulfuric acid or the like. Is working one in aqueous solution, it is recommended to adjust the pH to be set to 1 to 6.
Die Menge an Ausgangskomponenten sollte in der Regel so gewählt werden, daß annähernd äquimolare Mengen vorliegen. Es ist natürlich auch möglich, beispielsweise einen geringen Überschuß an der einen oder anderen Komponente einzusetzen.The amount of starting components should usually be like this be chosen that approximately equimolar amounts are available. It is of course also possible, for example one slight excess of one or the other component to use.
Die Art der Zugabe der einzelnen Ausgangsverbindungen kann beliebig gewählt werden. So kann die heterozyklische Komponente zusammen mit der Säure vorgelegt und dann das Natriumdicyanimid zugegeben werden. Diese Vorgehensweise wird vor allem bei einer Schmelzreaktion empfohlen. Gemäß einer bevorzugten Ausführungsform werden beide Ausgangskomponenten in Wasser gelöst und anschließend die Säure bei der entsprechenden Reaktionstemperatur zugegeben.The type of addition of the individual starting compounds can be chosen arbitrarily. So the heterocyclic Component submitted together with the acid and then that Sodium dicyanimide can be added. This approach is especially recommended for a melting reaction. According to a preferred embodiment, both Starting components dissolved in water and then the Acid at the appropriate reaction temperature admitted.
Nach einer durchschnittlichen Reaktionszeit von ca. 3 bis 5 Stunden kann noch bei Raumtemperatur eine gewisse Zeit nachgerührt werden oder mehrere Stunden auf tiefere Temperaturen (0 bis 10°C) abgekühlt werden, um das Reaktionsprodukt vollständig auskristallisieren zu lassen. Das Reaktionsprodukt kann dann nach den üblichen Methoden von der wäßrigen Phase abgetrennt, gereinigt (beispielsweise durch Nachwaschen) und gegebenenfalls getrocknet werden. Das gewünschte Produkt fällt hierbei in hoher Reinheit und guter Ausbeute an (ca. 50 bis 90%).After an average response time of approx. 3 to 5 hours can still take a certain time at room temperature be stirred or several hours lower Temperatures (0 to 10 ° C) are cooled to the Completely crystallize the reaction product to let. The reaction product can then according to the usual Methods separated from the aqueous phase, cleaned (for example by washing again) and optionally dried. The The desired product falls in high purity and good yield of (approx. 50 to 90%).
Die erfindungsgemäßen Verbindungen können mit gutem Erfolg als Beschleuniger für hitzehärtbare Epoxidharzmassen eingesetzt werden. Als Epoxidharze kommen hierbei alle handelsüblichen Produkte in Frage, welche üblicherweise mehr als eine 1,2-Epoxidgruppe aufweisen und gesättigt oder ungesättigt aliphatisch, cycloaliphatisch, aromatisch oder heterozyklisch sein können und evtl. Substituenten wie Halogene, Phosphor und Hydroxylgruppen etc. enthalten. The compounds of the invention can with good Success as an accelerator for thermosetting Epoxy resin compounds are used. As epoxy resins all commercially available products can be used, which usually has more than one 1,2-epoxy group have and saturated or unsaturated aliphatic, be cycloaliphatic, aromatic or heterocyclic can and possibly substituents such as halogens, phosphorus and Contain hydroxyl groups etc.
Besonders bevorzugt finden Epoxidharze auf Basis Glycidylpolyether von 2,2-Bis(4-hydroxyphenyl)propan (Bisphenol A) sowie das mit Brom substituierte Derivat (Tetrabrombisphenol A), Glycidylpolyether von 2,2-Bis (4-hydroxyphenyl)methan (Bisphenol F) und Glycidylether von Novolac-Harzen Verwendung.Epoxy resins based on are particularly preferred Glycidyl polyether of 2,2-bis (4-hydroxyphenyl) propane (Bisphenol A) and the derivative substituted with bromine (Tetrabromobisphenol A), glycidyl polyether of 2,2-bis (4-hydroxyphenyl) methane (bisphenol F) and glycidyl ether of Novolac resins use.
Werden die erfindungsgemäßen Verbindungen als Beschleuniger in Kombination mit anderen latenten Härtern angewendet, so reichen in der Regel 0,1 bis 2,0 Gew.-% bezogen auf das Gewicht des Epoxidharzes aus, um ausreichend hohe Reaktivitäten erzielen zu können.Are the compounds of the invention as Accelerator in combination with other latent hardeners applied, usually 0.1 to 2.0% by weight are sufficient based on the weight of the epoxy resin to be able to achieve sufficiently high reactivities.
Die mit den erfindungsgemäßen Beschleunigern kombinierten latenten Härter sind bekannt und meist im Handel erhältlich. Bevorzugt sind hierbei Härter, die Amino-, Imino-, Amido-, Imido-, Triazin- oder Hydrazidgruppen enthalten. Geeignete Härter sind z. B. Bortrichlorid/ Amin- und Bortrifluorid/Amin-Komplexe, Dicyandiamid, Aminotriazine wie Melamin oder Diallylmelamin und Guanamine wie z. B. Acetoguanamin oder Benzoguanamin, Aminotriazole wie z. B. 3-Amino-1,2,4-triazol, Carbonsäurehydrazide wie Adipinmono- oder -dihydrazid, Stearinhydrazid und Isophthalmono- oder -dihydrazid, Semicarbazid, Cyanoacetamid und aromatische Polyamine wie Diaminodiphenylsulfon. Besonders bevorzugt werden Dicyandiamid, Isophthalsäuredihydrazid, Adipinsäuredihydrazid.Those combined with the accelerators according to the invention latent hardeners are known and mostly on the market available. Preferred here are hardeners, the amino, Imino, amido, imido, triazine or hydrazide groups contain. Suitable hardeners are e.g. B. boron trichloride / Amine and boron trifluoride / amine complexes, dicyandiamide, Aminotriazines such as melamine or diallyl melamine and Guanamines such as B. acetoguanamine or benzoguanamine, Aminotriazoles such as B. 3-amino-1,2,4-triazole, Carboxylic acid hydrazides such as adipine mono- or dihydrazide, Stearin hydrazide and isophthalmono- or dihydrazide, Semicarbazide, cyanoacetamide and aromatic polyamines such as Diaminodiphenyl sulfone. Be particularly preferred Dicyandiamide, isophthalic acid dihydrazide, Adipic acid dihydrazide.
Je nach Anwendungsfall können die erfindungsgemäßen Verbindungen zusammen mit den Härtern in ein flüssiges oder aufgeschmolzenes Epoxidharz eingemischt und suspendiert werden oder als Lösung in das Epoxidharz oder in eine Lösung desselben eingebracht werden. Als Lösemittel können grundsätzlich alle Flüssigkeiten verwendet werden, in denen sich das Epoxidharz, der Härter und der Beschleuniger in ausreichendem Umfang auflösen. Beispiele für solche Lösemittel sind verschiedene Glykolether wie Ethylenglykol- oder Propylenglykolmonomethylether sowie Ester davon, aber auch Ketone wie Aceton oder DMF etc.Depending on the application, the inventive Connections together with the hardeners in a liquid or mixed in melted epoxy resin and be suspended or as a solution in the epoxy resin or be introduced into a solution of the same. As In principle, all liquids can be solvents are used, in which the epoxy resin, the Harder and the accelerator to a sufficient extent dissolve. Examples of such solvents are various glycol ethers such as ethylene glycol or Propylene glycol monomethyl ether and esters thereof, however also ketones such as acetone or DMF etc.
Die erfindungsgemäßen Verbindungen sollten in möglichst feinverteilter Form zum Einsatz kommen, um eine gleichmäßige Verteilung und eine optimale Wirkung zu erzielen. Die Teilchengröße sollte deshalb vorzugsweise <150 µm betragen.The compounds according to the invention should, if possible finely divided form are used to create a even distribution and an optimal effect achieve. The particle size should therefore be preferred <150 µm.
Die Epoxidhärtung mit Hilfe der erfindungsgemäßen Beschleuniger erfolgt bei Temperaturen von 100 bis 200°C, vorzugsweise bei 120 bis 160°C, wobei ein sehr schnelles Einsetzen der Härtung erfolgt.Epoxy curing with the help of the invention Accelerator takes place at temperatures from 100 to 200 ° C, preferably at 120 to 160 ° C, being a very fast Curing begins.
Die Gelierzeiten liegen beispielsweise bei 140°C je nach Beschleunigermenge bei 4 bis 6 Minuten. Bei niedrigeren Temperaturen können höhere Beschleunigermengen die Gelierzeiten noch weiter herabsetzen.The gelling times are, for example, around 140 ° C. Accelerator quantity at 4 to 6 minutes. At lower ones Temperatures can increase the amount of accelerators Reduce gel time even further.
Ein weiterer Vorteil der erfindungsgemäßen Verbindungen bei der Anwendung als Beschleuniger ist die gute Lagerstabilität. Wie Versuche zur Lagerstabilität gezeigt haben, sind die den erfindungsgemäßen Beschleuniger enthaltenden Epoxidharz-Formulierungen bei 40°C normalerweise 10 bis 12 Tage und bei Raumtemperatur 4 bis 6 Wochen lagerstabil.Another advantage of the compounds according to the invention is good when used as an accelerator Storage stability. As shown by experiments on storage stability have, are the accelerator according to the invention containing epoxy resin formulations at 40 ° C. usually 10 to 12 days and at room temperature 4 to Stable for 6 weeks.
Aufgrund der günstigen Anwendungseigenschaften dieser Verbindungen sowie ihrer kostengünstigen Herstellung sind diese besonders gut für eine technische Anwendung geeignet.Because of the favorable application properties of this Connections as well as their inexpensive manufacture these are particularly good for a technical application suitable.
Die nachfolgenden Beispiele sollen die Erfindung näher erläutern.The following examples are intended to illustrate the invention explain.
13,6 g Imidazol und 18,16 g Natriumdicyanimid werden in 30 ml Wasser gelöst und auf 50°C erwärmt. Innerhalb von 3 Stunden werden 22,8 g 32%ige Salzsäure zugetropft. Anschließend wird noch 3 Stunden weitergerührt. Nach Abkühlen über Nacht auf 4°C wird das Produkt abgesaugt, mit ca. 100 ml Wasser chloridfrei gewaschen und getrocknet.13.6 g imidazole and 18.16 g sodium dicyanimide are in Dissolved 30 ml of water and heated to 50 ° C. Within 3 22.8 g of 32% hydrochloric acid are added dropwise for hours. The mixture is then stirred for a further 3 hours. To Cooling overnight to 4 ° C, the product is suctioned off, washed with approx. 100 ml water free of chloride and dried.
Es werden 145,2 g (Ausbeute 57%) eines schwach altrosa gefärbten Pulvers mit korrekter Elementaranalyse erhalten. Dünnschichtchromatographie sowie IR-Spektrum zeigen keine Nebenprodukte bzw. Ausgangsstoffe. Schmelzpunkt 189 bis 190°C (die Schmelze verfestigt sich ab 210°C wieder).There are 145.2 g (yield 57%) of a slightly old pink colored powder with correct elemental analysis receive. Thin layer chromatography and IR spectrum show no by-products or raw materials. Melting point 189 to 190 ° C (the melt solidifies from 210 ° C again).
Elementaranalyse:
C₅H₅N₅ (MG=135,12)
Ber. C 44,44% Gef. C 44,13%
Ber. H 3,73% Gef. H 3,59%
Ber. N 51,83% Gef. N 52,40%
Elemental analysis:
C₅H₅N₅ (MG = 135.12)
Ber. C 44.44% found C 44.13%
Ber. H 3.73% found H 3.59%
Ber. N 51.83% Found N 52.40%
16,4 g 2-Methylimidazol werden mit ca. 22,8 g 32%iger Salzsäure unter Zusatz von 30 ml auf einen pH-Wert von 5,0 neutralisiert. Die Lösung wird bei 80°C im Vakuum eingeengt. Die zurückbleibende Schmelze wird mit 18,16 g Natriumdicyanimid innig vermengt und unter intensivem Rühren während 4 Stunden auf 80°C gehalten. Eine eventuelle Verbackung der Reaktionsmischung ist zu vermeiden. Das erhaltene feste Reaktionsprodukt wird in 100 ml Wasser aufgeschlämmt, abgesaugt, mit 50 ml Wasser nachgewaschen und getrocknet.16.4 g of 2-methylimidazole are approx. 22.8 g 32% Hydrochloric acid with the addition of 30 ml to a pH neutralized by 5.0. The solution is at 80 ° C in a vacuum constricted. The remaining melt is 18.16 g Sodium dicyanimide intimately mixed and under intense Stirring kept at 80 ° C for 4 hours. A possible caking of the reaction mixture is too avoid. The solid reaction product obtained is in Slurried 100 ml of water, suctioned off, with 50 ml of water washed and dried.
Es werden 26,3 g (Ausbeute 88,3%) eines fast weißen Pulvers mit korrekter Elementaranalyse erhalten. DC und IR zeigen keine Nebenprodukte bzw. Ausgangsstoffe. Schmelzpunkt 153°C (die Schmelze verfestigt sich wieder zu einer bis 280°C unschmelzbaren Masse).There are 26.3 g (yield 88.3%) of an almost white Obtain powder with correct elemental analysis. DC and IR show no by-products or raw materials. Melting point 153 ° C (the melt solidifies again to an infusible mass up to 280 ° C).
Elementaranalyse:
C₅H₇N₅ (MG=149,16)
Ber. C 48,32% Gef. C 47,91%
Ber. H 4,73% Gef. H 4,59%
Ber. N 46,95% Gef. N 47,35%
Elemental analysis:
C₅H₇N₅ (MG = 149.16)
Ber. C 48.32% Found C 47.91%
Ber. H 4.73% found H 4.59%
Ber. N 46.95% Found N 47.35%
6,7 g Pyrrol und 9,1 g Natriumdicyanimid werden in 25 ml Wasser gelöst und auf 80°C erwärmt. Innerhalb von 3 Stunden werden 11,4 g 32%ige Salzsäure zugetropft, anschließend wird 2 Stunden nachgerührt. Nach Abkühlen über Nacht wird das Produkt abgesaugt, mit 50 ml Wasser gewaschen und bei 65°C im Vakuum getrocknet.6.7 g of pyrrole and 9.1 g of sodium dicyanimide are dissolved in 25 ml Dissolved water and heated to 80 ° C. Within 3 11.4 g of 32% hydrochloric acid are added dropwise, then stirring is continued for 2 hours. After cooling The product is suctioned off overnight with 50 ml of water washed and dried at 65 ° C in a vacuum.
Es werden 11,5 g (Ausbeute 86%) eines durch Oxidationsprodukte verunreinigten (DC, IR) dunkelbraunen Pulvers mit korrekter Elementaranalyse erhalten. Schmelzpunkt: <280°CThere are 11.5 g (yield 86%) by one Oxidation products contaminate (DC, IR) dark brown Obtain powder with correct elemental analysis. Melting point: <280 ° C
Elementaranalyse:
C₆H₆N₄ (MG=134,14)
Ber. C 53,72% Gef. C 52,3%
Ber. H 4,51% Gef. H 4,3%
Ber. N 41,77% Gef. N 40,2%Elemental analysis:
C₆H₆N₄ (MG = 134.14)
Ber. C 53.72% Found C 52.3%
Ber. H 4.51% Found H 4.3%
Ber. N 41.77% Found N 40.2%
6,9 g 1,2,4-Triazol und 9,1 g Natriumdicyanimid werden in 25 ml Wasser gelöst. Bei 80°C werden innerhalb von 3 Stunden 11,4 g 32%ige Salzsäure zugegeben und noch 2 Stunden nachgerührt. Nach Abkühlen auf 4°C wird das ausgefallene Produkt abgesaugt, mit Wasser 20 ml Wasser gewaschen und im Vakuum getrocknet. 6.9 g 1,2,4-triazole and 9.1 g sodium dicyanimide are in 25 ml of water dissolved. At 80 ° C within 3 11.4 g of 32% hydrochloric acid were added, and another 2 Hours stirred. After cooling to 4 ° C filtered off the precipitated product, with water 20 ml of water washed and dried in vacuo.
Es werden 7,6 g (Ausbeute 56%) eines weißen Pulvers mit korrekter Elementaranalyse erhalten. DC und IR zeigen keine Nebenprodukte oder Ausgangsstoffe. Das Produkt verändert sich beim Erhitzen bis auf 300°C nicht.There are 7.6 g (yield 56%) of a white powder correct elemental analysis. Show DC and IR no by-products or raw materials. The product does not change when heated to 300 ° C.
Elementaranalyse:
C₄H₄N₆ (MG=136,12)
Ber. C 35,30% Gef. C 34,88%
Ber. H 2,96% Gef. H 2,65%
Ber. N 61,74% Gef. N 61,90%Elemental analysis:
C₄H₄N₆ (MG = 136.12)
Ber. C 35.30% Found C 34.88%
Ber. H 2.96% Found H 2.65%
Ber. N 61.74% found N 61.90%
Es wird die Wirkung der erfindungsgemäßen Verbindungen 1-(N′-Cyanoguanyl)-imidazol (Herstellung s. Beispiel 1) bzw. 1-(N′-Cyanoguanyl)-2-methylimidazol (s. Beispiel 2) als Beschleuniger in Epoxidharzmassen bei verschiedenen Temperaturen untersucht. Hierzu werden Formulierungen bestehend aus 100 g eines Bisphenol A-Flüssigharzes (z. B. Epikote 828 von Shell), 6 g Dicyandiamid (Dyhard 100S, SKW Trostberg) sowie 0,1 bis 2 g der erfindungsgemäßen Verbindungen (Beschleuniger) hergestellt und die Gelierzeiten bei 120°C, 140°C und 160°C bestimmt. Die Ergebnisse sind in den Fig. 1 und 2 zusammengefaßt. Wie man sieht, werden mit Hilfe der erfindungsgemäßen Verbindungen bei 140 bis 160°C sehr gute Gelierzeiten erhalten. There is the effect of the compounds 1- (N'-cyanoguanyl) imidazole (preparation see Example 1) or 1- (N'-cyanoguanyl) -2-methylimidazole (see Example 2) as an accelerator in epoxy resin compositions at various Temperatures examined. Formulations consisting of 100 g of a bisphenol A liquid resin (e.g. Epikote 828 from Shell), 6 g of dicyandiamide (Dyhard 100S, SKW Trostberg) and 0.1 to 2 g of the compounds (accelerators) according to the invention and the gelling times are prepared for this purpose determined at 120 ° C, 140 ° C and 160 ° C. The results are summarized in FIGS. 1 and 2. As can be seen, very good gelling times are obtained with the aid of the compounds according to the invention at 140 to 160 ° C.
Es wird die Lagerstabilität von durch Wärme härtbaren Mischungen untersucht, die die erfindungsgemäßen Beschleuniger 1-(N′-Cyanoguanyl)-imidazol bzw. 1-(N′-Cyanoguanyl)-2-methylimidazol enthalten. Hierzu werden Formulierungen aus 100 g eines Bisphenol A-Flüssigharzes (z. B. Epikote 828), 7 g Dicyandiamid(Dyhard 100S, SKW Trostberg) sowie 1 g der erfindungsgemäßen Beschleuniger hergestellt. Die Viskosität der Formulierung wird nach Lagerung bei 25°C in einem Haake-Rotationsviskosimeter bei 25°C gemessen. Die Ergebnisse zeigen eine gute Lagerstabilität:It becomes the storage stability of thermosetting Mixtures examined, the inventive Accelerator 1- (N′-cyanoguanyl) imidazole or Contain 1- (N'-cyanoguanyl) -2-methylimidazole. Formulations of 100 g of a Bisphenol A liquid resin (e.g. Epikote 828), 7 g Dicyandiamide (Dyhard 100S, SKW Trostberg) and 1 g the accelerator according to the invention produced. The Viscosity of the formulation is reduced after storage 25 ° C in a Haake rotary viscometer at 25 ° C measured. The results show a good one Storage stability:
Als Vergleich (nicht erfindungsgemäß) wurde eine Formulierung bestehend aus 100 g Epikote 828, 7 g Dicyandiamid und 1 g 2-Methylimidazol untersucht. Das Ergebnis zeigt eine sehr schlechte Lagerstabilität:As a comparison (not according to the invention) a Formulation consisting of 100 g Epikote 828, 7 g Dicyandiamide and 1 g of 2-methylimidazole examined. The The result shows a very poor storage stability:
Claims (10)
X=N, CR₃
Y=N, CR,
R₁-R₄=H, Alkylreste mit 1 bis 4 C-Atomen oder Phenylreste bedeuten.1. 1- (N'-cyanoguanyl) derivatives of N-containing five-membered heterocycles of the formula in which
X = N, CR₃
Y = N, CR,
R₁-R₄ = H, alkyl radicals having 1 to 4 carbon atoms or phenyl radicals.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19904026363 DE4026363A1 (en) | 1990-08-21 | 1990-08-21 | 1- (N'-CYANOGUANYL) DERIVATIVES OF N-CONTAINING FUENFRINGHETEROCYCLES |
| FR9110446A FR2667067A1 (en) | 1990-08-21 | 1991-08-20 | 1- (N'-CYANOGUANYL) DERIVATIVES OF FIVE-CHAIN HETEROCYCLES CONTAINING N. |
| GB9117979A GB2247237B (en) | 1990-08-21 | 1991-08-20 | 1-(N'-Cyanoguanyl) derivatives of N-containing five-membered ring heterocycles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19904026363 DE4026363A1 (en) | 1990-08-21 | 1990-08-21 | 1- (N'-CYANOGUANYL) DERIVATIVES OF N-CONTAINING FUENFRINGHETEROCYCLES |
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| DE4026363A1 true DE4026363A1 (en) | 1992-03-12 |
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| Country | Link |
|---|---|
| DE (1) | DE4026363A1 (en) |
| FR (1) | FR2667067A1 (en) |
| GB (1) | GB2247237B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102005057590A1 (en) * | 2005-12-02 | 2007-06-06 | Degussa Ag | Use of 1- (N'-cyanoguanyl) derivatives of N-containing five-membered heterocycles as curing agents for epoxy resin compositions |
| DE102012015315A1 (en) * | 2012-08-02 | 2014-05-15 | Alzchem Ag | Liquid curing agent useful for curing polymer resins, preferably curable polymer resins comprising epoxide resins, preferably impregnated fiber materials or impregnated fabrics, comprises cyanamide, urea derivative, and viscosity modifier |
| DE102012015316A1 (en) * | 2012-08-02 | 2014-05-15 | Alzchem Ag | Liquid curing agent useful for curing polymer resins, preferably curable polymer resins comprising epoxide resins, preferably impregnated fiber materials or impregnated fabrics, comprises cyanamide, urea derivative, and viscosity modifier |
| US9296855B2 (en) | 2011-02-23 | 2016-03-29 | Alzchem Ag | High-latency hardeners for epoxy resins |
| US9382374B2 (en) | 2012-08-02 | 2016-07-05 | Alzchem Ag | Liquid hardeners for hardening epoxide resins (II) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4119982C2 (en) * | 1991-06-18 | 1993-09-30 | Du Pont Deutschland | 1,3-bis-carbamoyl-imidazolium compounds and methods of curing gelatin-containing layers |
| KR102469706B1 (en) * | 2015-04-06 | 2022-11-22 | 닛신보 케미칼 가부시키가이샤 | Epoxy Resin Composition |
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| DE3246072A1 (en) * | 1981-12-15 | 1983-07-21 | CIBA-GEIGY AG, 4002 Basel | NEW IMIDAZOLID |
| DE3308373A1 (en) * | 1983-03-09 | 1984-09-13 | Siemens AG, 1000 Berlin und 8000 München | Catalytically curable reaction resin compositions which can be processed in screen printing |
| DE2811764C2 (en) * | 1977-03-18 | 1985-09-12 | Shikoku Chemicals Corp., Marugame, Kagawa | Adducts of isocyanuric acid with substituted imidazoles and processes for their preparation and their use |
| EP0310545A2 (en) * | 1987-09-02 | 1989-04-05 | Ciba-Geigy Ag | Cyanoguanidines as hardeners for epoxy resins |
| DE3818214A1 (en) * | 1988-05-28 | 1989-12-07 | Schering Ag | IMIDAZOLYL UREA COMPOUNDS AND THE USE THEREOF AS A CURING ACCELERATOR IN EPOXY RESIN COMPOSITIONS FOR THE PRODUCTION OF MOLDED BODIES |
| DE3919431A1 (en) * | 1988-06-28 | 1990-01-04 | Sueddeutsche Kalkstickstoff | Additive for thermocurable epoxy resin compositions |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3562215A (en) * | 1967-06-09 | 1971-02-09 | Minnesota Mining & Mfg | Low temperature,latent epoxy resin curing system |
| US3717612A (en) * | 1970-06-22 | 1973-02-20 | Hitco | Curable epoxy resin composition containing a substituted diurea compound |
| US3956237A (en) * | 1974-07-08 | 1976-05-11 | The Dow Chemical Company | Epoxy resin compositions comprising latent amine curing agents and novel accelerators |
| US4335228A (en) * | 1978-02-27 | 1982-06-15 | Air Products And Chemicals, Inc. | Isocyanate blocked imidazoles and imidazolines for epoxy powder coating |
| CH642068A5 (en) * | 1979-03-14 | 1984-03-30 | Rech Syntheses Organ | THERAPEUTICALLY ACTIVE CYANO-UREA AND CYANO-THIOURAE. |
| US4742148A (en) * | 1987-04-17 | 1988-05-03 | Hexcel Corporation | Modified imidazole latent epoxy resin catalysts and systems comprising them |
-
1990
- 1990-08-21 DE DE19904026363 patent/DE4026363A1/en not_active Withdrawn
-
1991
- 1991-08-20 FR FR9110446A patent/FR2667067A1/en not_active Withdrawn
- 1991-08-20 GB GB9117979A patent/GB2247237B/en not_active Expired - Fee Related
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|---|---|---|---|---|
| DE2811764C2 (en) * | 1977-03-18 | 1985-09-12 | Shikoku Chemicals Corp., Marugame, Kagawa | Adducts of isocyanuric acid with substituted imidazoles and processes for their preparation and their use |
| DE3246072A1 (en) * | 1981-12-15 | 1983-07-21 | CIBA-GEIGY AG, 4002 Basel | NEW IMIDAZOLID |
| DE3308373A1 (en) * | 1983-03-09 | 1984-09-13 | Siemens AG, 1000 Berlin und 8000 München | Catalytically curable reaction resin compositions which can be processed in screen printing |
| EP0310545A2 (en) * | 1987-09-02 | 1989-04-05 | Ciba-Geigy Ag | Cyanoguanidines as hardeners for epoxy resins |
| DE3818214A1 (en) * | 1988-05-28 | 1989-12-07 | Schering Ag | IMIDAZOLYL UREA COMPOUNDS AND THE USE THEREOF AS A CURING ACCELERATOR IN EPOXY RESIN COMPOSITIONS FOR THE PRODUCTION OF MOLDED BODIES |
| DE3919431A1 (en) * | 1988-06-28 | 1990-01-04 | Sueddeutsche Kalkstickstoff | Additive for thermocurable epoxy resin compositions |
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| Chemical Abstract: Vol.107, 1987, Ref. 60104z * |
| Vol.101, 1984, Ref. 131920b * |
| Vol.108, 1988, Ref. 222598p * |
| Vol.109, 1988, Ref. 232524w * |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102005057590A1 (en) * | 2005-12-02 | 2007-06-06 | Degussa Ag | Use of 1- (N'-cyanoguanyl) derivatives of N-containing five-membered heterocycles as curing agents for epoxy resin compositions |
| WO2007062853A1 (en) * | 2005-12-02 | 2007-06-07 | Alzchem Trostberg Gmbh | Use of 1-(n'-cyanoguanyl) derivates of n-containing five-membered heterocyclic rings as hardeners for epoxy resin compositions |
| US9296855B2 (en) | 2011-02-23 | 2016-03-29 | Alzchem Ag | High-latency hardeners for epoxy resins |
| US9499653B2 (en) | 2011-02-23 | 2016-11-22 | Alzchem Ag | Curing agents for epoxy resins |
| US9617369B2 (en) | 2011-02-23 | 2017-04-11 | Alzchem Ag | High-latency hardeners for epoxy resins |
| DE102012015315A1 (en) * | 2012-08-02 | 2014-05-15 | Alzchem Ag | Liquid curing agent useful for curing polymer resins, preferably curable polymer resins comprising epoxide resins, preferably impregnated fiber materials or impregnated fabrics, comprises cyanamide, urea derivative, and viscosity modifier |
| DE102012015316A1 (en) * | 2012-08-02 | 2014-05-15 | Alzchem Ag | Liquid curing agent useful for curing polymer resins, preferably curable polymer resins comprising epoxide resins, preferably impregnated fiber materials or impregnated fabrics, comprises cyanamide, urea derivative, and viscosity modifier |
| US9382374B2 (en) | 2012-08-02 | 2016-07-05 | Alzchem Ag | Liquid hardeners for hardening epoxide resins (II) |
| US9499659B2 (en) | 2012-08-02 | 2016-11-22 | Alzchem Ag | Liquid hardeners for hardening epoxide resins (I) |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2667067A1 (en) | 1992-03-27 |
| GB9117979D0 (en) | 1991-10-09 |
| GB2247237B (en) | 1994-05-18 |
| GB2247237A (en) | 1992-02-26 |
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