SU504810A1 - Rubber compound - Google Patents
Rubber compoundInfo
- Publication number
- SU504810A1 SU504810A1 SU1714024A SU1714024A SU504810A1 SU 504810 A1 SU504810 A1 SU 504810A1 SU 1714024 A SU1714024 A SU 1714024A SU 1714024 A SU1714024 A SU 1714024A SU 504810 A1 SU504810 A1 SU 504810A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- sulfur
- resistance
- scorching
- mercaptobenzthiazole
- rubber compound
- Prior art date
Links
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
Description
Изобретение относитс к области высокотемпературной вулканизации и переработке резиновых смесей на интенсифицированных режимах. Известна резинова смесь на основе ненасыщенных каучуков, содержаща в качестве вулканизующего агента бисмалеимиды, а в качестве активаторов - ди-2-бензтиазолилдисульфид (ДБТД) 1. Однако при использовании указанных смесей не удаетс достичь достаточно высокой стойкости к подвулканизации. С целью повышени стойкости к подвулканизации смесей, содержащих бисмалеимиды, предлагают в качестве активатора вулканизации вводить биссульфенамидные производные 2-меркаптобензтиазола общей формулы сн С - у -г сн v-s--r - /с сн S сн где iR - циклогексил, изопропил и другие группы, в сочетании с небольшими добавками серы. Пример. Смеси готов т на лабораторных вальцах при 70-80°С. Вулканизацию провод т в прессе при 183°С. Состав смесей приведен в табл. 1. Стойкость к подвулканизации тдз при 130°С (врем увеличени в зкости по Муни на 5 единиц ) смесей, содержащих бисмалеимид, активатор и различные концентрации серы, представлена в табл. 2. Из приведенных в табл. 2 данных видно, что смесь с ЦБСА в сочетании с небольшими добавками серы Отличаетс большей стойкостью к подвулканизации; при дополнительном введении серы эффект про вл етс еще в больщей степени. При этом введение небольших добавок серы повышает не только стойкость к подвулканизации, при дополнительном введении серы эффект про вл етс еще в большей степени. Введение небольших добавок серы повышает не только стойкость к подвулканизации, но и уровень прочностных свойств вулканизатов, изготовленных в услови х высоких температур (183°С).This invention relates to the field of high-temperature vulcanization and the processing of rubber compounds in intensified modes. A known rubber mixture based on unsaturated rubbers containing bismaleimides as a vulcanizing agent and di-2-benzthiazolyl disulfide (DBTD) 1 as activators. However, using these mixtures, a sufficiently high resistance to vulcanisation cannot be achieved. In order to increase the resistance to scorching of mixtures containing bismaleimides, it is proposed to introduce bisulfenamide derivatives of 2-mercaptobenzthiazole of the general formula sn C – y – y cns vs –r – c c S S where the iR is cyclohexyl, isopropyl, and other groups as a vulcanization activator , in combination with small additions of sulfur. Example. Mixtures are prepared on laboratory rolls at 70-80 ° C. Vulcanization is carried out in a press at 183 ° C. The composition of the mixtures are given in table. 1. Resistance to scorching at disinfection at 130 ° C (time for increasing the Mooney viscosity by 5 units) of mixtures containing bismaleimide, activator and various concentrations of sulfur are presented in Table. 2. From the table. 2 data shows that the mixture with CA in combination with small additions of sulfur. It is more resistant to scorch; with the addition of sulfur, the effect is even more pronounced. At the same time, the introduction of small sulfur additives not only increases the resistance to scorching, with the additional introduction of sulfur, the effect is even more pronounced. The introduction of small additions of sulfur not only increases the resistance to scorching, but also the level of strength properties of vulcanizates made under high temperatures (183 ° C).
4 Таблица I4 Table I
Таблица 2table 2
Предлагаема резинова смесь эффективна на различных ненасыщенных каучуках (СКИ-3, СКД, БСК) при применении в качестве вулканизующего агента различных алКИЛ- , арил-, аралкилбисмалеимидов и в качестве активаторов - различных бисс льфонамидных производных 2-МБТ, в том числе с циклическим и разветвленным радикалами.The proposed rubber mixture is effective on various unsaturated rubbers (SKI-3, SKD, BSK) when using various alkyl-, aryl-, aralkylbismaleimides as a vulcanizing agent and various bissonamide derivatives of 2-MBT, including cyclic and branched radicals.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU1714024A SU504810A1 (en) | 1971-11-11 | 1971-11-11 | Rubber compound |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU1714024A SU504810A1 (en) | 1971-11-11 | 1971-11-11 | Rubber compound |
Publications (1)
Publication Number | Publication Date |
---|---|
SU504810A1 true SU504810A1 (en) | 1976-02-28 |
Family
ID=20492869
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU1714024A SU504810A1 (en) | 1971-11-11 | 1971-11-11 | Rubber compound |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU504810A1 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5079305A (en) * | 1989-09-05 | 1992-01-07 | Monsanto Company | Rubber compositions comprising sulfenimide accelerators |
US5189174A (en) * | 1989-09-05 | 1993-02-23 | Monsanto Company | Heterocyclic thiol-based sulfenimide compounds |
US5260454A (en) * | 1989-09-05 | 1993-11-09 | Monsanto Company | Bis-pyrimidyl thiol sulfenimide compounds |
RU2579103C1 (en) * | 2012-01-30 | 2016-03-27 | Бриджстоун Корпорейшн | Vibration-absorbing rubber mixture, cross-linked vibration-absorbing rubber mixture and vibration-absorbing rubber |
RU2579577C2 (en) * | 2012-01-30 | 2016-04-10 | Бриджстоун Корпорейшн | Anti-vibration rubber composition, cross-linked anti-vibration composition and anti-vibration rubber |
-
1971
- 1971-11-11 SU SU1714024A patent/SU504810A1/en active
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5079305A (en) * | 1989-09-05 | 1992-01-07 | Monsanto Company | Rubber compositions comprising sulfenimide accelerators |
US5189174A (en) * | 1989-09-05 | 1993-02-23 | Monsanto Company | Heterocyclic thiol-based sulfenimide compounds |
US5260454A (en) * | 1989-09-05 | 1993-11-09 | Monsanto Company | Bis-pyrimidyl thiol sulfenimide compounds |
RU2579103C1 (en) * | 2012-01-30 | 2016-03-27 | Бриджстоун Корпорейшн | Vibration-absorbing rubber mixture, cross-linked vibration-absorbing rubber mixture and vibration-absorbing rubber |
RU2579577C2 (en) * | 2012-01-30 | 2016-04-10 | Бриджстоун Корпорейшн | Anti-vibration rubber composition, cross-linked anti-vibration composition and anti-vibration rubber |
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