Distillation of (meth) acryloxy-bearing alkoxysilane
US6334935B1 · kind B1 · utility
15Cited by
7References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 18, 1999 |
| Grant date | Jan 1, 2002 |
| Priority date | — |
| Expiry date | Jun 18, 2019 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07F7/1804
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A (meth)acryloxy-bearing alkoxysilane is isolated and purified to a high purity by distilling a reaction solution containing the (meth)acryloxy-bearing alkoxysilane in a thin-layer distillation device at a temperature of 90-160° C. and a vacuum of 1-15 mmHg. The resulting alkoxysilane product does not give rise to the quality problem that the product will gradually whiten during storage owing to contact with air. The occurrence of self-polymerization of the alkoxysilane is restrained.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.