DE885155C - Means for plasticizing unvulcanized rubber - Google Patents
Means for plasticizing unvulcanized rubberInfo
- Publication number
- DE885155C DE885155C DEF6420A DEF0006420A DE885155C DE 885155 C DE885155 C DE 885155C DE F6420 A DEF6420 A DE F6420A DE F0006420 A DEF0006420 A DE F0006420A DE 885155 C DE885155 C DE 885155C
- Authority
- DE
- Germany
- Prior art keywords
- plasticizing
- rubber
- unvulcanized rubber
- compounds
- value
- 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.)
- Expired
Links
- 229920001971 elastomer Polymers 0.000 title claims description 5
- 239000005060 rubber Substances 0.000 title claims description 5
- 150000001875 compounds Chemical class 0.000 claims description 7
- 229920002587 poly(1,3-butadiene) polymer Polymers 0.000 claims description 6
- 230000002378 acidificating effect Effects 0.000 claims description 4
- -1 aromatic mercaptans Chemical class 0.000 claims description 4
- 239000004014 plasticizer Substances 0.000 description 5
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical class S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 4
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 4
- BDAGIHXWWSANSR-UHFFFAOYSA-N formic acid Substances OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 description 3
- 229910052921 ammonium sulfate Inorganic materials 0.000 description 3
- 235000011130 ammonium sulphate Nutrition 0.000 description 3
- 229920001577 copolymer Polymers 0.000 description 3
- 229920003052 natural elastomer Polymers 0.000 description 3
- 229920001194 natural rubber Polymers 0.000 description 3
- PJFUHFZHSSLCTE-UHFFFAOYSA-N 2,3,4-trichlorobenzenethiol Chemical compound SC1=CC=C(Cl)C(Cl)=C1Cl PJFUHFZHSSLCTE-UHFFFAOYSA-N 0.000 description 2
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 description 2
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 2
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 description 2
- 244000043261 Hevea brasiliensis Species 0.000 description 2
- RRHGJUQNOFWUDK-UHFFFAOYSA-N Isoprene Chemical compound CC(=C)C=C RRHGJUQNOFWUDK-UHFFFAOYSA-N 0.000 description 2
- 150000007513 acids Chemical class 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 235000019253 formic acid Nutrition 0.000 description 2
- DMCMMSCDJUQSIK-UHFFFAOYSA-N N.[Rh+3] Chemical compound N.[Rh+3] DMCMMSCDJUQSIK-UHFFFAOYSA-N 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 229910000148 ammonium phosphate Inorganic materials 0.000 description 1
- 235000019289 ammonium phosphates Nutrition 0.000 description 1
- 238000007334 copolymerization reaction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 150000002019 disulfides Chemical class 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000018984 mastication Effects 0.000 description 1
- 238000010077 mastication Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 235000005985 organic acids Nutrition 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 239000005061 synthetic rubber Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/0008—Organic ingredients according to more than one of the "one dot" groups of C08K5/01 - C08K5/59
- C08K5/0016—Plasticisers
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Description
Mittel zum Plastizieren von unvulkanisiertem Kautschuk Die Erfindung betrifft ein Plastiziermittel für Kautschuk und synthetische kautschukartige Butadienpolymerisate, wobei unter Butadienpolymer-en -die Polymerisate des Butaidicns b zw. seiner Homologen, wie Isopren und Dimeth,ylbutadien sowie Mischpolymerisate,der genannten Verbindungen mit anderen polymerisierbaren Verbindungen, wie beispielsweist Styrol oder Acryln.itril, verstanden sein sollen. Es ist bekannt, daß die Plastizierung bzw. Mastizieru.ng von Kautschuk durch Zusatz von lUerkaptoverbindungen, wie Thionaphtholen, Thioanthracen, substituierten Thiophenolen oder deren funktionellen Derivate, erfolgen kann. Als letztere seien beispielsweise idie entsprechenden Disulfide genannt, :die unter den bei,der Plastizierung angewandten Bedingungen zu den Merkaptanen zerfallen. Mit -diesen Mitteln lassen .sich sehr gute Plastizier- bzw. Mastiziereffekte erzielen. Es wurde nun gefunden, daß die Plastizierun:g bzw. Mastikation von natürlichem Kautschuk oder synthetischen kautschukartigen Butadienpolym@erisaten bzw. deren Mischungen besonders erleichtert wind, wenn man als Plastiziermittel organische Merkaptoverbindungen, die kleine Mengen sauer reagierender, ionisierbarer Verbindungen enthalten, anwendet. Es ist überraschend, @daß bei Zusatz der genannten sauren Verbindungen die Plastizierung bedeutend schneller verläuft hzw. in gleichen Zeiten höhere Plastizitätsgrad-e; d. h. niedrigere Defowert.e, erhalten werden als hei Verwendung von Merkaptanen, die diese Zusätze nicht enthalten. Man kann aber auch die größere Wirksamkeit benutzen, um bei tieferen Temperaturen zu arbeiten.Means for plasticizing unvulcanized rubber The invention relates to a plasticizer for rubber and synthetic rubber-like butadiene polymers, whereby under butadiene polymers -the polymers of butaidicns b between its homologues, such as isoprene and dimeth, ylbutadiene and copolymers of the compounds mentioned with other polymerizable compounds, such as styrene or acrylonitrile, should be understood. It is known that the plasticization or Mastizieru.ng of rubber by adding lUerkapto compounds such as thionaphthols, thioanthracene, substituted thiophenols or their functional derivatives. as the latter may be mentioned, for example, the corresponding disulfides: the under The conditions used for plasticization disintegrate into the mercaptans. With these agents, very good plasticizing and masticating effects can be achieved. It has now been found that the plasticization or mastication of natural rubber or synthetic rubber-like butadiene polymers or mixtures thereof Wind is particularly relieved if organic mercapto compounds are used as plasticizers, which contain small amounts of acidic, ionizable compounds. It is surprising that plasticization occurs when the acidic compounds mentioned are added hzw is much faster. higher degree of plasticity-e at the same time; d. H. lower defow values are obtained than when using mercaptans, which do not contain these additives. But you can also use the greater effectiveness, to work at lower temperatures.
Als sauer oder neutral reagierende ionisierbare Verbindungenkommen hier insbesondereorganische Säuren, wie z. B. Ameisen- oder Essigsäure, Ammonium - oder Aminsalze, wie z. B. Ammoniumsulfat oder -Phosphat, sowie Rholdanilde, insbesondere Ammoniumrho;dianiid, in Betracht. Diese Verbin@düngen werden in kleinen Mengen zugesetzt. So genügt im allgemeinen ein Zusatz von etwa i --bis 5 0/0 rder genannten sauer reagierenden Verbindungen zu ,den organischen Merkaptarnen, um eine erhebliche Beschleunigung oder PYastizierung zu erzielen. Die Anwendung .dieser neuen Kombinationsmittel kann ebenso, erfolgen, wie es für die Verwendung der Merkaptane als Plastiziermittel bekannt ist. Dem Naturkautschuk setzt man vorteilhaft etwa o, i bis o,5 0% und den synthetischen kautschukartigen Butadienpolymeren vorzugsweise etwa 1,5 bis 3 0/0 der neuen Kombinationsplastiziermittel zu. Die Merkaptane und ,die sauer reagierenden ionisierbaren Verbindungen können selbstverständlich rdem natürlichen oder synthetischen Kautschuk auch getrennt zugemischt werden.As acidic or neutrally reacting ionizable compounds come here in particular organic acids, such as. B. formic or acetic acid, ammonium - or amine salts, such as. B. ammonium sulfate or phosphate, as well as Rholdanilde, in particular ammonium rhodium; dianiid, into consideration. These Verbin @ fertilize are added in small amounts. In general, an addition of about 1 to 5% of the acidic compounds mentioned is sufficient to achieve a considerable acceleration or pyasticization. These new combination agents can also be used, as is known for the use of mercaptans as plasticizers. It is advantageous to add about 0.1 to 0.50% of the new combination plasticizers to the natural rubber and preferably about 1.5 to 3% of the synthetic rubber-like butadiene polymers. The mercaptans and the acidic ionizable compounds can of course also be mixed separately with the natural or synthetic rubber.
Von besonderem Wert sind ,die neuen Pl,astiziermittel bei ihrer Anwendiung auf synthetische Butadienpolymere, z. B. solche, die aus Butardien und Styrol oder aus Butadien und Acrylnitril !durch Mischpolymerisation gewonnen werden.The new plasticizers are of particular value in their application to synthetic butadiene polymers, e.g. B. those made of butardiene and styrene or obtained from butadiene and acrylonitrile! by copolymerization.
Beispiel i Masti@ziert man B-uta:dien-Styrol-Mischpolymerisat mit einem Defowert von 28aa unter Zusatz von 2 % Trichlorthiophenol, so wird der Defowert nach 15 Minuten auf 95o erniedrigt. Mit 2 % Trichlorthiophenol und o, i % Ammoniumsulfat wird unter ,den gleichen Bedingungen der Defowert au-f 625 erniedrigt.Example i Masti @ ziert one B-uta: diene-styrene copolymer with a Defo value of 28aa with the addition of 2% trichlorothiophenol, then the Defo value becomes decreased to 95o after 15 minutes. With 2% trichlorothiophenol and 0.1% ammonium sulfate the defow value is reduced to 625 under the same conditions.
Beispiele Durch Zusatz von 2 0/0 9-Thioanth,racen wird der Defowert beim M.astizieren eines Butadien-Styrol-17ischpolymerisats innerhalb von 30 Minuten von Defo i8oo auf Defo i4o:o erniedrigt. Gibt man außer den 2 0/0 9-Thioanthnacen noch zusätzlich 0,015% Ameisensäure hinzu, erzielt man unter den gleichen Bedingungen einen Defowert von 80o.EXAMPLES The addition of 2% 9-thioanth, racene reduces the Defo value when a butadiene-styrene copolymer is elasticated from Defo 18oo to Defo 14o: o within 30 minutes. If one adds 0.015% formic acid in addition to the 2 0/0 9-thioanthnacene, a defow value of 80o is achieved under the same conditions.
Beispie13 Verwendet man im Beispiel i an Stelle des Ammoniumsulfats 0,3 % Ammoniumthodani,d, so wirdder Defowert unter den gleichen Bedingungen auf 50o erniedrigt.Example i is used in Example i instead of ammonium sulfate 0.3% ammonium thodane, d, the defow value is increased under the same conditions 50o lowered.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEF6420A DE885155C (en) | 1951-06-15 | 1951-06-15 | Means for plasticizing unvulcanized rubber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEF6420A DE885155C (en) | 1951-06-15 | 1951-06-15 | Means for plasticizing unvulcanized rubber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE885155C true DE885155C (en) | 1953-08-03 |
Family
ID=7085005
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEF6420A Expired DE885155C (en) | 1951-06-15 | 1951-06-15 | Means for plasticizing unvulcanized rubber |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE885155C (en) |
-
1951
- 1951-06-15 DE DEF6420A patent/DE885155C/en not_active Expired
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