TPV from hydrosilylation crosslinking of acrylic modified bromo XP-50 butyl rubber
US6084031A · kind A · utility
32Cited by
21References
16Claims
0Family size
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Key dates
| Filing date | Nov 30, 1998 |
| Grant date | Jul 4, 2000 |
| Priority date | — |
| Expiry date | Nov 30, 2018 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L23/10
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
An improved process for the preparation of thermoplastic vulcanizates from butyl rubbers by hydrosilylation crosslinking of acrylic or alkacrylic functionalized copolymers of isobutylene and paramethylstyrene is disclosed. The functionalization results in lower compression and tension set than when using conventional butyl rubbers. Other physical properties of the thermoplastic vulcanizate are improved consistent with more efficient crosslinking of the functionalized copolymer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.