Organopolysiloxane and method for the preparation thereof
US5422412A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 22, 1994 |
| Grant date | Jun 6, 1995 |
| Priority date | — |
| Expiry date | Jun 22, 2014 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G77/50
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
An organopolysiloxane suitable for modifying curable organic and silicone compositions is disclosed, said organopolysiloxane having the general formula ##STR1## wherein each R.sup.1 is a monovalent group independently selected from the group consisting of alkyl radicals having 1 to 5 carbon atoms and phenyl radical; R.sup.2 is a monovalent group independently selected from the group consisting of hydrogen, alkyl radicals having 1 to 5 carbon atoms and phenyl radical; R.sup.3 is selected from the group consisting of alkoxysilylalkyl groups and alkyl groups having at least 6 carbon atoms; a is zero or a positive number; b is a positive number; c is a positive number; a/c has a value of zero to <4; b/c has a value of 0.05 to 4; and (a+b)/c has a value of 0.2 to 4, with the proviso that said organopolysiloxane has in its molecule at least one said alkoxysilylalkyl group and at least one said alkyl group having at least 6 carbons.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.