Sheet and tube organosilicon polymers
US5627241A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Sep 19, 1996 |
| Grant date | May 6, 1997 |
| Priority date | — |
| Expiry date | Sep 19, 2016 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G77/12
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A method of making an organopolysiloxane sheet or tube polymer involves contacting a sheet or tube silicate with an organo-H-chlorosilane to form an organosiloxane sheet or tube polymer with pendent .tbd.Si--H groups. Subsequently, the organosiloxane sheet or tube polymer with pendent .tbd.Si--H groups is contacted with an alkenyl group containing compound in the presence of a hydrosilation catalyst. The catalyst is used in an amount effective to catalyze a hydrosilation reaction between the alkenyl group on the alkenyl group containing compound and the hydride functionality on the organosiloxane sheet or tube polymer with pendent .tbd.Si--H groups, to form the organopolysiloxane sheet or tube polymer,
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.