Phenyl-modified hybrid prepolymer, phenyl-modified polydimethylsiloxane-based hybrid prepolymer, and phenyl-modified polydimethylsiloxane-based hybrid polymer, and production processes therefor
US10227454B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Dec 24, 2015 |
| Grant date | Mar 12, 2019 |
| Priority date | — |
| Expiry date | Dec 24, 2035 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G77/70
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Disclosed herein are a phenyl-modified hybrid prepolymer, a phenyl-modified polydimethylsiloxane-based hybrid prepolymer, and a phenyl-modified polydimethylsiloxane-based hybrid polymer capable of controlling material hardness or surface tackiness depending on the intended use or purpose. A phenyl-modified hybrid prepolymer (B) is prepared by subjecting polydimethylsiloxane having trialkoxysilyl groups at both ends, phenyltrialkoxysilane, and diphenyldialkoxysilane to hydrolysis and condensation reaction. A phenyl-modified polydimethylsiloxane-based hybrid prepolymer (C) comprises (B), and is preferably prepared by mixing (B) and a phenyl-modified hybrid prepolymer (A) prepared by condensation reaction between polydimethylsiloxane having silanol groups at both ends and phenyltrialkoxysilane. The phenyl-modified polydimethylsiloxane-based hybrid polymer is obtained by heating and solidifying (C).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.