Organopolysiloxane and method for the preparation thereof
US5310843A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 29, 1992 |
| Grant date | May 10, 1994 |
| Priority date | — |
| Expiry date | Sep 29, 2012 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G77/18
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
An MQ organopolysiloxane compatible with organic plastics, has an epoxy-containing organic group, and has the following general formula ##STR1## R.sup.1 represents monovalent hydrocarbon groups, R.sup.2 represents the hydrogen atom and monovalent hydrocarbon groups, R.sup.3 represents epoxy-containing organic groups and alkoxysilylalkyl groups, a is 0 or a positive number, b and c are positive numbers, a/c has a value of 0 to 4, b/c has a value of 0.05 to 4, and (a+b)/c has a value of 0.2 to 4. Also, a method for the preparation of this organopolysiloxane comprises an addition reaction of an Si-H containing organopolysiloxane with an epoxy-containing compound in the presence of a hydrosilylation catalyst.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.