Method of preparing an organopolysiloxane for surface coating
US4024306A · kind A · utility
32Cited by
8References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 19, 1975 |
| Grant date | May 17, 1977 |
| Priority date | — |
| Expiry date | Mar 19, 1995 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31855
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The coating composition is prepared by partial co-hydrolysis and co-condensation of a mixture comprising an organotrialkoxysilane or its combination with a tetraalkoxysilane, a fluoroalkylalkoxysilane and a hydroxy-endblocked diorganopolysiloxane in the presence of an acid catalyst. The organopolysiloxanes thus prepared are suitable for coating plastic surfaces to produce a coating on the surfaces, the cured coating film having hardness as well as flexibility sufficient to ensure a very strong resistance to swelling, dissolution or corrosion by attacks of solvents and chemicals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.