DE1001487B - Propellant for the production of foam bodies - Google Patents
Propellant for the production of foam bodiesInfo
- Publication number
- DE1001487B DE1001487B DE1954P0012336 DEP0012336A DE1001487B DE 1001487 B DE1001487 B DE 1001487B DE 1954P0012336 DE1954P0012336 DE 1954P0012336 DE P0012336 A DEP0012336 A DE P0012336A DE 1001487 B DE1001487 B DE 1001487B
- Authority
- DE
- Germany
- Prior art keywords
- parts
- dinitrosopentamethylenetetramine
- propellant
- production
- mixture
- 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.)
- Pending
Links
- 239000003380 propellant Substances 0.000 title claims description 8
- 239000006260 foam Substances 0.000 title claims description 7
- 238000004519 manufacturing process Methods 0.000 title claims description 5
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 17
- MWRWFPQBGSZWNV-UHFFFAOYSA-N Dinitrosopentamethylenetetramine Chemical compound C1N2CN(N=O)CN1CN(N=O)C2 MWRWFPQBGSZWNV-UHFFFAOYSA-N 0.000 claims description 14
- 239000000203 mixture Substances 0.000 claims description 14
- 229920001971 elastomer Polymers 0.000 claims description 10
- 239000004202 carbamide Substances 0.000 claims description 9
- OHJMTUPIZMNBFR-UHFFFAOYSA-N biuret Chemical compound NC(=O)NC(N)=O OHJMTUPIZMNBFR-UHFFFAOYSA-N 0.000 claims description 6
- LENZDBCJOHFCAS-UHFFFAOYSA-N tris Chemical compound OCC(N)(CO)CO LENZDBCJOHFCAS-UHFFFAOYSA-N 0.000 claims description 5
- 239000004604 Blowing Agent Substances 0.000 claims description 4
- KXDHJXZQYSOELW-UHFFFAOYSA-N Carbamic acid Chemical class NC(O)=O KXDHJXZQYSOELW-UHFFFAOYSA-N 0.000 claims description 4
- 239000000806 elastomer Substances 0.000 claims description 3
- 230000003213 activating effect Effects 0.000 description 8
- 239000003795 chemical substances by application Substances 0.000 description 8
- 239000005060 rubber Substances 0.000 description 7
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 6
- HZAXFHJVJLSVMW-UHFFFAOYSA-N 2-Aminoethan-1-ol Chemical compound NCCO HZAXFHJVJLSVMW-UHFFFAOYSA-N 0.000 description 4
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 4
- BJQHLKABXJIVAM-UHFFFAOYSA-N bis(2-ethylhexyl) phthalate Chemical compound CCCCC(CC)COC(=O)C1=CC=CC=C1C(=O)OCC(CC)CCCC BJQHLKABXJIVAM-UHFFFAOYSA-N 0.000 description 4
- 239000000945 filler Substances 0.000 description 4
- 210000004027 cell Anatomy 0.000 description 3
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 230000009965 odorless effect Effects 0.000 description 3
- 239000004800 polyvinyl chloride Substances 0.000 description 3
- 229920000915 polyvinyl chloride Polymers 0.000 description 3
- MFEVGQHCNVXMER-UHFFFAOYSA-L 1,3,2$l^{2}-dioxaplumbetan-4-one Chemical compound [Pb+2].[O-]C([O-])=O MFEVGQHCNVXMER-UHFFFAOYSA-L 0.000 description 2
- YXIWHUQXZSMYRE-UHFFFAOYSA-N 1,3-benzothiazole-2-thiol Chemical compound C1=CC=C2SC(S)=NC2=C1 YXIWHUQXZSMYRE-UHFFFAOYSA-N 0.000 description 2
- DLFVBJFMPXGRIB-UHFFFAOYSA-N Acetamide Chemical compound CC(N)=O DLFVBJFMPXGRIB-UHFFFAOYSA-N 0.000 description 2
- FBPFZTCFMRRESA-FSIIMWSLSA-N D-Glucitol Natural products OC[C@H](O)[C@H](O)[C@@H](O)[C@H](O)CO FBPFZTCFMRRESA-FSIIMWSLSA-N 0.000 description 2
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 2
- 229910000003 Lead carbonate Inorganic materials 0.000 description 2
- 241000276489 Merlangius merlangus Species 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 150000007513 acids Chemical class 0.000 description 2
- YACLQRRMGMJLJV-UHFFFAOYSA-N chloroprene Chemical compound ClC(=C)C=C YACLQRRMGMJLJV-UHFFFAOYSA-N 0.000 description 2
- 239000000839 emulsion Substances 0.000 description 2
- QUBQYFYWUJJAAK-UHFFFAOYSA-N oxymethurea Chemical compound OCNC(=O)NCO QUBQYFYWUJJAAK-UHFFFAOYSA-N 0.000 description 2
- 229950005308 oxymethurea Drugs 0.000 description 2
- 239000012188 paraffin wax Substances 0.000 description 2
- 239000000600 sorbitol Substances 0.000 description 2
- 239000011593 sulfur Substances 0.000 description 2
- 229910052717 sulfur Inorganic materials 0.000 description 2
- 239000011787 zinc oxide Substances 0.000 description 2
- OPNUROKCUBTKLF-UHFFFAOYSA-N 1,2-bis(2-methylphenyl)guanidine Chemical compound CC1=CC=CC=C1N\C(N)=N\C1=CC=CC=C1C OPNUROKCUBTKLF-UHFFFAOYSA-N 0.000 description 1
- CPGFMWPQXUXQRX-UHFFFAOYSA-N 3-amino-3-(4-fluorophenyl)propanoic acid Chemical compound OC(=O)CC(N)C1=CC=C(F)C=C1 CPGFMWPQXUXQRX-UHFFFAOYSA-N 0.000 description 1
- BWGNESOTFCXPMA-UHFFFAOYSA-N Dihydrogen disulfide Chemical compound SS BWGNESOTFCXPMA-UHFFFAOYSA-N 0.000 description 1
- GUBGYTABKSRVRQ-QKKXKWKRSA-N Lactose Natural products OC[C@H]1O[C@@H](O[C@H]2[C@H](O)[C@@H](O)C(O)O[C@@H]2CO)[C@H](O)[C@@H](O)[C@H]1O GUBGYTABKSRVRQ-QKKXKWKRSA-N 0.000 description 1
- 239000005662 Paraffin oil Substances 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 229920002367 Polyisobutene Polymers 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229930006000 Sucrose Natural products 0.000 description 1
- CZMRCDWAGMRECN-UGDNZRGBSA-N Sucrose Chemical compound O[C@H]1[C@H](O)[C@@H](CO)O[C@@]1(CO)O[C@@H]1[C@H](O)[C@@H](O)[C@H](O)[C@@H](CO)O1 CZMRCDWAGMRECN-UGDNZRGBSA-N 0.000 description 1
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 239000012190 activator Substances 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 150000001414 amino alcohols Chemical class 0.000 description 1
- 210000003850 cellular structure Anatomy 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000002537 cosmetic Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- ZBCBWPMODOFKDW-UHFFFAOYSA-N diethanolamine Chemical compound OCCNCCO ZBCBWPMODOFKDW-UHFFFAOYSA-N 0.000 description 1
- 238000002845 discoloration Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 235000011187 glycerol Nutrition 0.000 description 1
- YMAWOPBAYDPSLA-UHFFFAOYSA-N glycine anhydride Natural products [NH3+]CC(=O)NCC([O-])=O YMAWOPBAYDPSLA-UHFFFAOYSA-N 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- WJRBRSLFGCUECM-UHFFFAOYSA-N hydantoin Chemical compound O=C1CNC(=O)N1 WJRBRSLFGCUECM-UHFFFAOYSA-N 0.000 description 1
- 229940091173 hydantoin Drugs 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000008101 lactose Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 1
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- BXRNXXXXHLBUKK-UHFFFAOYSA-N piperazine-2,5-dione Chemical compound O=C1CNC(=O)CN1 BXRNXXXXHLBUKK-UHFFFAOYSA-N 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000005720 sucrose Substances 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 239000005061 synthetic rubber Substances 0.000 description 1
- 230000002087 whitening effect Effects 0.000 description 1
- 150000003751 zinc Chemical class 0.000 description 1
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical compound [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
- C08J9/06—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent
- C08J9/10—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent developing nitrogen, the blowing agent being a compound containing a nitrogen-to-nitrogen bond
- C08J9/107—Nitroso compounds
Landscapes
- Chemical & Material Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Description
DEUTSCHESGERMAN
Die Erfindung betrifft Treibmittel zur Herstellung von Schaumkörpern aus gegebenenfalls weichgemachten Elastomeren.The invention relates to blowing agents for producing foam bodies from optionally plasticized ones Elastomers.
Es ist bekannt, bei der Herstellung von Schwammkörpern mit Zellgefüge Dinitrosopentamethylentetramin als Treibmittel zu verwenden. Das Treibmittel wurde mit einem Weichmacher vermischt und der Gummi- oder Kunststoffmischung vor dem Walzen zugemischt. Die fertige Mischung wurde dann in üblicher Weise, beispielsweise in der Hitze und unter Druck, aufgebläht. Man mußte jedoch dem Dinitrosopentamethylentetramin saure Beschleuniger zusetzen, um die Zersetzungstemperatur von etwa 200 auf 100° oder darunter herabzusetzen. Indessen ist die Verwendung von Säuren häufig unerwünscht, weil die Schaumkörper einen unangenehmen Geruch von Aminen aufweisen, so daß sie für viele Verwendungszwecke, wie für kosmetische oder hygienische Erzeugnisse und Gebrauchsgegenstände, ζ. Β. Matratzen, Polsterwaren, Schwämme usw., unbrauchbar sind. Auch mindern die Säuren die Wärmebeständigkeit von Polyvinylchlorid und rufen Verfärbungen hervor.It is known to use dinitrosopentamethylenetetramine in the production of sponge bodies with a cellular structure to be used as a propellant. The propellant was mixed with a plasticizer and the rubber or Plastic mixture mixed in before rolling. The finished mixture was then in the usual manner, for example in the heat and under pressure, bloated. However, you had to acidic the dinitrosopentamethylenetetramine Add accelerator to reduce the decomposition temperature from about 200 to 100 ° or below. However, the use of acids is often undesirable because the foam body is unpleasant Have a smell of amines, so they can be used for many purposes, such as cosmetic or hygienic Products and utensils, ζ. Β. Mattresses, upholstery, sponges, etc., are unusable. Even the acids reduce the heat resistance of polyvinyl chloride and cause discoloration.
Der vorliegenden Erfindung liegt die Aufgabe zugrunde, verbesserte Dinitrosopentamethylentetramin-Treibmittel zu schaffen, die dem Schaumkörper keinen unangenehmen Geruch verleihen und die hervorragend wärmebeständig sind.It is an object of the present invention to provide improved dinitrosopentamethylenetetramine propellants to create, which give the foam body no unpleasant odor and which are excellent heat-resistant are.
Diese Aufgabe wird nach der vorliegenden Erfindung gelöst, die ein Treibmittel zur Herstellung von Schaumkörpern aus gegebenenfalls weichgemachten Elastomeren betrifft, das aus einem Gemisch von Dinitrosopentamethylentetramin und »Beschleunigern« aus der Gruppe der 1,2-Glykole, Carboxyamide oder Alkylolamine besteht. Als Beschleuniger sind vorzugsweise Harnstoff, Biuret oder Trimethylolaminomethan geeignet.This object is achieved according to the present invention, which is a blowing agent for the production of foam bodies from optionally plasticized elastomers concerns that from a mixture of dinitrosopentamethylenetetramine and "accelerators" from the group of 1,2-glycols, carboxyamides or alkylolamines. Urea, biuret or trimethylolaminomethane are preferably suitable as accelerators.
In den Beispielen ist die Erfindung näher erläutert, wobei die Mengenangaben Gewichtsteile bedeuten.The invention is explained in more detail in the examples, the quantitative data being parts by weight.
Aus folgenden Mischungsbestandteilen: 100 Teilen Polyvinylchlorid-Emulsion, 150 Teilen Di-(2-äthylhexyl)-phthalat, 10 Teilen bas. Bleicarbonat, 12 Teilen Dinitrosopentamethylentetramin, 10 Teilen Harnstoff wurde eine [PCU-] Paste durch inniges Vermischen hergestellt und diese in einer geschlossenen Form von kreisförmigem Querschnitt von einem lichten Durchmesser von 76 mm und einer Höhe von 6,35 mm mit Dampf von 8,4 atü und 176,7° 3 Minuten erhitzt. Darauf wurde die Form auf Raumtemperatur abgekühlt, der teilweise aufgeblähte Formling der Form entnommen und 15 Minuten auf 100° erhitzt. Das Erzeugnis stellte einen weißen, praktisch geruchlosen Schwammkörper von 158 mm Durchmesser und 12,7 mm Höhe dar, der ein feines und gleichmäßiges Zellgefüge aufwies.From the following mixture components: 100 parts polyvinyl chloride emulsion, 150 parts of di (2-ethylhexyl) phthalate, 10 parts of bas. Lead carbonate, 12 parts dinitrosopentamethylenetetramine, A [PCU] paste was prepared by intimately mixing 10 parts of urea and these in a closed shape of circular cross-section with a clear diameter of 76 mm and a height of 6.35 mm with steam of 8.4 atmospheres and 176.7 ° heated for 3 minutes. Thereupon was the form cooled to room temperature, the partially inflated molding removed from the mold and 15 minutes heated to 100 °. The product presented a white, practically odorless sponge body of 158 mm Diameter and 12.7 mm height, which had a fine and even cell structure.
Treibmittel zur Herstellung
von SchaumkörpernPropellants for manufacture
of foam bodies
Anmelder:Applicant:
E. I. du Pont de Nemours & Company,
Wilmington, Del. (V. St. A.)EI du Pont de Nemours & Company,
Wilmington, Del. (V. St. A.)
Vertreter: Dr.-Ing. G. Knoth, Patentanwalt,Representative: Dr.-Ing. G. Knoth, patent attorney,
Hamburg-Wellingsbüttel, Up de Worth 24Hamburg-Wellingsbüttel, Up de Worth 24
Joseph Frederic Walker, Lewiston, N. Y.,
und Harry Douglas Williams, Penns Grove, N. J.Joseph Frederic Walker, Lewiston, NY,
and Harry Douglas Williams, Penns Grove, NJ
. (V. StA.),
sind als Erfinder genannt worden. (V. StA.),
have been named as inventors
Aus 100 Teilen Polyvinylchlorid-Emulsion, 150 Teilen Di-(2-äthylhexyl)-phthalat, 10 Teilen bas. Bleicarbonat, 12 Teilen Dinitrosopentamethylentetramin, 20 Teilen Trimethylol-aminomethan (HO · CH2)3 · C · NH2 wurde eine [PCU-]Paste hergestellt und diese wie im Beispiel 1 behandelt. Es wurde ein reinweißer, praktischgeruchloser Schwamm von einem Durchmesser von 158 mm und einer Höhe von 12,7 mm von feiner und gleichförmiger Zellstruktur erhalten.From 100 parts of polyvinyl chloride emulsion, 150 parts of di (2-ethylhexyl) phthalate, 10 parts of bas. Lead carbonate, 12 parts of dinitrosopentamethylenetetramine, 20 parts of trimethylol aminomethane (HO · CH 2 ) 3 · C · NH 2 , a [PCU] paste was produced and this was treated as in Example 1. A pure white, practically odorless sponge with a diameter of 158 mm and a height of 12.7 mm with a fine and uniform cell structure was obtained.
Aus 100 Teilen 2-Chlorbutadien-(l, 3)-Kunstkautschuk, 50 Teilen Schlämmkreide, 10 Teilen Leichtöl, 3 Teilen Paraffin, 3,5 Teilen Schwefel, 5 Teilen Zinkoxyd, 0,5 Teilen Zinksalz des Mercaptobenzthiazols, 0,1 Teil Di-(o-tolyl)-guanidin, 7 Teilen eines Gemisches aus 40% Dinitrosopentamethylentetramin und 60 °/0 eines inerten Füllstoffs, 4 Teilen Harnstoff wurde eine Gummimischung hergestellt und die Mischung in der Form nach Beispiel 1 durch Erhitzen mit Dampf von 4,2 atü von 153° während 4 Minuten anvulkanisiert. Dann wurde entformt und die expandierte Gummischeibe 5 Minuten mit Dampf von 4,2 atü von 153° in einer Form unter Atmosphärendruck ausvulkanisiert. Es wurde ein schwach gefärbter, feinzelliger Schwamm von 110 mm Durchmesser und 9,5 mm Dicke erhalten.From 100 parts of 2-chlorobutadiene (l, 3) synthetic rubber, 50 parts of whiting, 10 parts of light oil, 3 parts of paraffin, 3.5 parts of sulfur, 5 parts of zinc oxide, 0.5 part of the zinc salt of mercaptobenzothiazole, 0.1 part of Di - (o-tolyl) guanidine, 7 parts of a mixture of 40% dinitrosopentamethylenetetramine and 60 ° / 0 of an inert filler, 4 parts of urea was prepared a rubber mixture, and the mixture in the mold of example 1 by heating with steam of 4.2 atü of 153 ° vulcanized for 4 minutes. It was then removed from the mold and the expanded rubber disk was fully vulcanized for 5 minutes with steam at 4.2 atmospheres at 153 ° in a mold under atmospheric pressure. A slightly colored, fine-celled sponge 110 mm in diameter and 9.5 mm in thickness was obtained.
Aus 100 Teilen Kautschuk, Pale Crepe, 5 Teilen Zinkstearat, 50 Teilen Schlämmkreide, 3,5 Teilen Schwefel,Made from 100 parts of rubber, pale crepe, 5 parts of zinc stearate, 50 parts of whiting chalk, 3.5 parts of sulfur,
609 767/446609 767/446
0,27 Teilen Benzthiazyl-disulfid, 16 Teilen Leichtöl, 7 Teilen 40 % Dinitrosopentamethylentetramin und 60 % Füllstoff, 4 Teilen Biuret wurde eine Gummimischung hergestellt, die nach Beispiel 3 während 6 Minuten anvulkanisiert wurde. Dann wurde die Form geöffnet und der Formling unter gewöhnlichem Luftdruck in einer Form mit Dampf von 4,2 atü von 153° 5 Minuten ausvulkanisiert. Der scheibenförmige Formling war schwach gefärbt, hatte ein feinzelliges Schwammgefüge, 110 mm Durchmesser und war 9,5 mm dick.0.27 parts of benzthiazyl disulfide, 16 parts of light oil, 7 parts of 40% dinitrosopentamethylenetetramine and 60% filler, 4 parts of biuret became a rubber mixture produced, which was vulcanized according to Example 3 for 6 minutes. Then the mold was opened and the molding is fully vulcanized under normal air pressure in a mold with steam of 4.2 atmospheres at 153 ° for 5 minutes. The disc-shaped molding was faintly colored, had a fine-cell sponge structure, 110 mm Diameter and was 9.5 mm thick.
Aus 100 Teilen 2-Chlorbutadien-(l, 3)-Kautschuk, Type W, 50 Teilen Schlämmkreide, 3 Teilen Paraffin, 10 Teilen Leichtöl, 4 Teilen Magnesiumoxyd, 5 Teilen Zinkoxyd, 3 Teilen Dipentamethylen-thiuramtetrasulfid, 7 Teilen 40 % Dinitrosopentamethylentetramin und 60 % Füllstoff, 4 Teilen Dimethylolharnstoff wurde eine Gummimischung hergestellt und diese 12 Minuten nach Beispiel 3 vulkanisiert. Das Erzeugnis stellte einen schwach bräunlichen, feinzelligen Schwamm von 121 mm Durchmesser und 11 mm Dicke dar.Made from 100 parts of 2-chlorobutadiene (l, 3) rubber, type W, 50 parts whitening chalk, 3 parts paraffin, 10 parts light oil, 4 parts magnesium oxide, 5 parts zinc oxide, 3 parts dipentamethylene thiuram tetrasulfide, 7 parts of 40% dinitrosopentamethylenetetramine and 60% filler, 4 parts of dimethylolurea became a rubber mixture produced and vulcanized this 12 minutes according to Example 3. The product made you weak brownish, fine-celled sponge 121 mm in diameter and 11 mm thick.
Die folgenden Bestandteile wurden auf einem Zweiwalzenstuhl bei 100° zusammengemischt: 100 Teile Polyäthylen, 50 Teile Polyisobutylen, 5 Teile 40% Dinitrosopentamethylentetramin und 60% Füllstoff, 1,7 Teile Harnstoff. Die Mischung wurde in einer zu einem Drittel gefüllten Scheibenform von 50 mm lichtem Durchmesser und 50 mm lichter Höhe, die zwischen zwei Stahlplatten eingepreßt war, 30 Minuten auf 150° erhitzt. Der erhaltene Schwammkörper hatte eine Dichte von 0,30.The following ingredients were mixed together on a two-roll mill at 100 °: 100 parts of polyethylene, 50 parts polyisobutylene, 5 parts 40% dinitrosopentamethylene tetramine and 60% filler, 1.7 parts Urea. The mixture was in a one-third filled disc shape with a clear diameter of 50 mm and 50 mm clear height, which was pressed between two steel plates, heated to 150 ° for 30 minutes. The received Sponge body had a density of 0.30.
Als Aktivierungsmittel für das Dinitrosopentamethylentetramin eignen sich insbesondere folgende Stoffe, für die die entwickelten Gasmengen im Gemisch mit 0,2 g Dinitrosopentamethylentetramin mit überschüssigem Aktivierungsmittel in einem inerten Medium, wie Paraffmöl, im Ölbad von 150° in nachstehender Tabelle angegeben sind, wobei die Gasmenge bei 25° und einem Druck von 1 atü gemessen wurde:The following substances are particularly suitable as activating agents for dinitrosopentamethylenetetramine, for which the amount of gas evolved mixed with 0.2 g of dinitrosopentamethylenetetramine with excess activating agent in an inert medium, such as paraffin oil, in an oil bath at 150 ° in the table below where the amount of gas was measured at 25 ° and a pressure of 1 atü:
Verbindunglink
Glycinanhydrid Glycine anhydride
Dimethylolharnstoff Dimethylolurea
Vergleichsversuch ohne Aktivierungsmittel Comparative experiment without activating agent
Entwickelte Gasmenge in ml.Amount of gas evolved in ml.
Die Gasentwicklung war so lebhaft, daß die Masse überschäumte desgl.The gas evolution was so vigorous that the mass foamed over the same.
Die aus 0,2 g pinitrosopentamethylentetramin bei Eintauchen in ein Ölbad von 180° während 15 Minuten entwickelte Gasmenge (ebenfalls bei 25° und 1 atü gemessen) betrug bei folgenden Verbindungen:The one made from 0.2 g of pinitrosopentamethylenetetramine when immersed in an oil bath at 180 ° for 15 minutes The amount of gas developed (also measured at 25 ° and 1 atm.) was in the following compounds:
Verbindunglink
Glycerin Glycerin
Diäthanolamin Diethanolamine
Diäthylenglykol Diethylene glycol
Äthylenglykol Ethylene glycol
Trimethylolaminomethan....Trimethylolaminomethane ....
Äthanolamin Ethanolamine
Harnstoff urea
Acetamid Acetamide
Sorbit-monolaurat Sorbitol monolaurate
Triäthanolamin Triethanolamine
Monomethylol-hydantoin....Monomethylol hydantoin ....
Sorbit Sorbitol
Biuret Biuret
Entwickelte Gasmenge in ml.Amount of gas evolved in ml.
4545
Saccharose
ohne Aktivierungsmittel ....lactose
Sucrose
without activating agents ....
68
8 .84
68
8th .
6262
6161
4343
5555
5050
7373
7272
4040
6161
5555
3434
6060
Die Gasentwicklung war so lebhaft, daß die Masse überschäumte Die wirksamsten Aktivierungsmittel sind 1,2 -Glykole, Carboxyamide, wie Harnstoff, Biuret und Aminoalkohole,: wie Äthanolamin, Trimethylolaminomethan. Von diesen drei Gruppen sind die Carboxyamide die wirksamsten. Harnstoff ist wegen seiner niedrigen Kosten besonders vorteilhaft. Auch Mischungen der genannten Aktivierungsmittel können verwendet werden, wie Mischungen von Biuret oder Äthylenglykol mit feingemahlenem Harnstoff.The evolution of gas was so vigorous that the mass foamed over The most effective activating agents are 1,2-glycols, carboxyamides such as urea, biuret and amino alcohols: such as ethanolamine, trimethylolaminomethane. Of these three groups, the carboxyamides are the most effective. Urea is particularly advantageous because of its low cost. Also mixtures of the activating agents mentioned can be used, such as mixtures of biuret or ethylene glycol with finely ground Urea.
Zwecks Erzielung einer guten Wirkung und einer feinen Zellstruktur ist das Aktivierungsmittel in der Schwammischung homogen und fein zu verteilen. Deshalb sind die festen Aktivierungsmittel vor dem Einmischen auf eine solche Feinheit zu vermählen, daß sie ein Sieb DIN 0,149 oder feinere Siebe passieren, die Teilchengröße also zweckmäßig unter etwa 100 Mikron liegt. Um ein Zusammenballen zu vermeiden, kann das Aktivierungsmittel während des Mischens öder nach dem Mischen mit einer geeigneten Flüssigkeit vermischt werden.In order to achieve a good effect and a fine cell structure, the activating agent is in the Distribute the sponge mixture homogeneously and finely. Therefore, the solid activators are prior to mixing in to grind to such a fineness that they pass a sieve DIN 0.149 or finer sieves, the particle size that is, suitably below about 100 microns. To avoid agglomeration, the activating agent can be added during mixing or after mixing be mixed with a suitable liquid.
Nach der Erfindung ist es erstmalig möglich, unter Verwendung von Dinitrosopentamethylentetramin als Treib- oder Blähmittel geruchlose Schwammkörper zu erzielen, so daß dieses Treibmittel für Zwecke verwendet werden kann, bei denen hohe Ansprüche gestellt werden.According to the invention it is possible for the first time using dinitrosopentamethylenetetramine as Propellants or blowing agents to achieve odorless sponge bodies, so that this propellant is used for purposes where high demands are made.
Claims (2)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2504554A GB761721A (en) | 1954-08-28 | 1954-08-28 | Improved dinitrosopentamethylenetetramine blowing agent compositions and cellular compositions prepared therewith |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE1001487B true DE1001487B (en) | 1957-01-24 |
Family
ID=10221326
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE1954P0012336 Pending DE1001487B (en) | 1954-08-28 | 1954-07-17 | Propellant for the production of foam bodies |
Country Status (3)
| Country | Link |
|---|---|
| DE (1) | DE1001487B (en) |
| FR (1) | FR1105117A (en) |
| GB (1) | GB761721A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3712120A1 (en) * | 1986-04-22 | 1987-10-29 | Stiefel & Schuhvertrieb Gmbh | Process for producing a boot |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2496387A (en) * | 1946-02-06 | 1950-02-07 | Fink Arthur | Composition of matter suitable for dental liners |
| US2573701A (en) * | 1948-06-18 | 1951-11-06 | Edward M Filachione | Polyethylene glycol esters of acyloxycarboxylic acids |
| DE891391C (en) * | 1942-07-17 | 1953-09-28 | Chemische Werke Huels Ges Mit | Process for the preparation of alkyl thioether groups in carboxylic acid esters containing carboxylic acid radicals |
| DE894162C (en) * | 1944-07-23 | 1953-10-22 | Roehm & Haas G M B H | Plasticizers for polymers or copolymers of amides of unsaturated carboxylic acids, especially methacrylic acid amide |
-
1954
- 1954-07-17 DE DE1954P0012336 patent/DE1001487B/en active Pending
- 1954-07-22 FR FR1105117D patent/FR1105117A/en not_active Expired
- 1954-08-28 GB GB2504554A patent/GB761721A/en not_active Expired
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE891391C (en) * | 1942-07-17 | 1953-09-28 | Chemische Werke Huels Ges Mit | Process for the preparation of alkyl thioether groups in carboxylic acid esters containing carboxylic acid radicals |
| DE894162C (en) * | 1944-07-23 | 1953-10-22 | Roehm & Haas G M B H | Plasticizers for polymers or copolymers of amides of unsaturated carboxylic acids, especially methacrylic acid amide |
| US2496387A (en) * | 1946-02-06 | 1950-02-07 | Fink Arthur | Composition of matter suitable for dental liners |
| US2573701A (en) * | 1948-06-18 | 1951-11-06 | Edward M Filachione | Polyethylene glycol esters of acyloxycarboxylic acids |
Also Published As
| Publication number | Publication date |
|---|---|
| FR1105117A (en) | 1955-11-28 |
| GB761721A (en) | 1956-11-21 |
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