Curable silicone rubber composition
US5516832A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 3, 1994 |
| Grant date | May 14, 1996 |
| Priority date | — |
| Expiry date | Nov 3, 2014 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G77/70
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention relates to a peroxide-curable silicone rubber composition which, when cured, exhibits a reduced modulus and improved tear strength relative to prior art systems without sacrificing other desirable properties, such as high tensile strength of the cured rubber or storage stability of the uncured rubber base, said composition comprising: PA0 (A) 100 parts by weight of a diorganopolysiloxane gum; PA0 (B) 10 to 75 parts by weight a reinforcing filler; PA0 (C) a polybutylene oligomer having a number average molecular weight of 200 to less than 900 and having functionality selected from the group consisting of epoxy, alkoxyphenylene, hydroxyl, carboxyl, anhydride and fully saturated; and, optionally, PA0 (D) a hydroxy-terminated diorganopolysiloxane having a degree of polymerization of 2 to 50.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.