Inhibited precious metal catalyzed organopolysiloxane compositions
US4670531A · kind A · utility
37Cited by
16References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 21, 1986 |
| Grant date | Jun 2, 1987 |
| Priority date | — |
| Expiry date | Jan 21, 2006 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G77/26
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
There are provided curable compositions, comprising (a) an organopolysiloxane base polymer, (b) an organohydrogenpolysiloxane crosslinking agent, (c) an effective amount of precious metal containing catalyst, and (d) and azo compound wherein at least one --N.dbd.N-- moiety is not part of a cyclic structure, and preferably is alpha to an electron withdrawing group such as carbonyl, in an amount effective to inhibit reaction of said organopolysiloxane base polymer and said organohydrogenpolysiloxane crosslinking agent. Articles of manufacture as well as methods for preparation of such compositions and articles are also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.