Filled arcylate and methacrylate films
US5051298A · kind A · utility
12Cited by
11References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 20, 1989 |
| Grant date | Sep 24, 1991 |
| Priority date | — |
| Expiry date | Mar 20, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/259
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Free standing, optically clear, poly(acrylate) or poly(methacrylate) film having dispersed therein silica which is produced in situ from an alkoxysilane, using acid catalysis and a substantially stoichiometric amount of water for hydrolysis. The film forming process comprises a drying and curing step conducted in an open system. The temperatures and pH employed determine the nature and morphology of the dispersed silica phase. The film-forming process is conducted in the substantial absence of a polymerizable substance other than the alkoxysilane.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.