Production of organopolysiloxane copolymers with a phenyl ether solvent
US5527855A · kind A · utility
4Cited by
5References
8Claims
0Family size
Assignee
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Key dates
| Filing date | Apr 21, 1995 |
| Grant date | Jun 18, 1996 |
| Priority date | — |
| Expiry date | Apr 21, 2015 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2383/04
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
An improved process is provided for the preparation of siloxane-oxyalkylene block copolymer surfactant compositions which utilize a hydrosilylation reaction with a phenyl ether as the reaction solvent and the use of a phenyl ether as a cold blend additive. Ethylene glycol phenyl ether is the preferred reaction solvent or cold blend additive.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.