Silicone ladder polymer coating composition
AssigneeMitsubishi Denki Kabushiki Kaisha
InventorsYoshiko Aiba, Hiroshi Adachi, Etsushi Adachi
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Abstract
Disclosed herein is a silicone ladder polymer coating composition containing silicone ladder polymer which is expressed in the following general formula: ##STR1## where R.sub.1 represents the same or different types of phenyl groups or lower alkyl groups, R.sub.2 represents the same or different types of hydrogen atoms or lower alkyl groups, and n represents an integer of 20 to 1000, an aromatic organic solvent which is so added that solid matter occupies 5 to 30 percent by weight, and a silane coupling agent of 150 to 3000 p.p.m. with respect to the polymer.
Claims4
A silicone ladder polymer coating composition containing a silicone ladder polymer of the following general formula:
- ##STR5## R.sub.1 represents the same or different types of phenyl groups or lower alkyl groups, R.sub.2 represents the same or different types of hydrogen atoms or lower alkyl groups, and n represents an integer of 20 to 1000, a nonpolar aromatic organic solvent being present in an amount such that solid matter occupies 5 to 30 percent by weight, and a silane coupling agent of 150 to 3000 p.p.m. with respect to said polymer, the silane coupling agent being selected from the group consisting of vinyltriethoxysilane, vinyltrimethoxysilane, .beta.-(3,4 epoxycyclohexyl) ethyltrimethoxysilane, .gamma.-glycidoxypropyltrimethoxysilane and .gamma.-glycidoxypropylmethyldiethoxysilane.
Dependencies are inferred from the claim text.