Blocked phenolic silanes
US6559329B2 · kind B2 · utility
6Cited by
1References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 17, 2001 |
| Grant date | May 6, 2003 |
| Priority date | — |
| Expiry date | Oct 17, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/8305
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The present invention is directed to a process comprising deblocking a silane of the formula(RIC(═O)O)yC6RII6−y−z[CxH2xSi(ORIII)3−a(RIV)a]zwhere RI is H, CH3 or RVO; RII is H or RVO; RIII is alkyl, phenyl or acyl from 1 to 6 carbon atoms; RIV is hydrogen, alkyl or phenyl from 1 to 6 carbon atoms; RV is a linear or branched alkyl group from 1 to 4 carbon atoms; y is an integer from 1 to 3; z is an integer from 1 to 3; x is an integer from 2 to 6 and a is an integer from 0 to 2 to yield a phenolic silane. Also disclosed are processes for making a blocked silane having the above formula.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.