Organopolysiloxane containing coating compositions
US4795783A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 19, 1987 |
| Grant date | Jan 3, 1989 |
| Priority date | — |
| Expiry date | Jun 19, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31663
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A coating composition contains a blend of PA0 (a) from about 5 percent by weight to about 35 percent by weight of a hydroxyl functional vinyl polymer having at least 2 percent by weight of hydroxyl groups based on the total weight of the vinyl polymer; and PA0 (b) from about 65 percent by weight to about 95 percent by weight of an organopolysiloxane containing hydrolyzable groups prepared by the partial hydrolysis of a compound or mixture of compounds represented by the structural formula R.sub.a SiX.sub.(4-a) wherein: PA1 R is hydrogen, alkyl, aryl, alkylaryl, arylalkyl, aryloxyalkyl or haloalkyl; PA1 X is halogen, OR.sup.1, ##STR1## or the monohydroxy or cyclic C.sub.2 to C.sub.3 residue of a 1,2- or 1,3-glycol, wherein: PA1 R.sup.1 is C.sub.1 -C.sub.3 alkyl, PA1 R.sup.2 is hydrogen or C.sub.1 -C.sub.4 alkyl, PA1 R.sup.3 and R.sup.4 independently are hydrogen, C.sub.1 -C.sub.4 alkyl or C.sub.6 -C.sub.8 aryl, PA1 R.sup.5 is C.sub.4 -C.sub.7 alkylene, and PA1 a is an integer ranging from 1 to 2, the percentage of (a) and (b) being based on the total weight of (a) and (b).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.