Additive for rubber
US10774199B2 · kind B2 · utility
0Cited by
7References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 7, 2016 |
| Grant date | Sep 15, 2020 |
| Priority date | — |
| Expiry date | Jun 2, 2037 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2201/08
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Provided is an additive for rubber that contains a sulfide composition, wherein the sulfide composition in the additive for rubber contains a sulfide compound having the repeating units shown by formula (1), the amount of repeating units (1) in which X=2 is at least 45 molar parts per 100 molar parts of repeating units (1) in the sulfide compound, and the number n of repeating units (1) in the sulfide compound is from 1 to 400, whereby an additive for rubber capable of imparting excellent heat resistance is provided. Also provided is a rubber composition that contains said additive for rubber. wherein X is 1, 2 or 3.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.