Patent ID: 9029453
Filing Date: 2015-05-12
Classification: C08F,C08J,C08K,C08L,H01L,Y02E

Abstract:
1. A polyvinylidene fluoride resin composition comprising a polyvinylidene fluoride resin and titanium oxide, wherein (a) the content of the titanium oxide is within a range of 10 to 100 parts by weight per 100 parts by weight of the polyvinylidene fluoride resin, (b) the polyvinylidene fluoride resin composition contains, as a heat stabilizer, at least one compound selected from the group consisting of calcium polyhydroxymonocarboxylates, calcium salts of aliphatic carboxylic acids having 5 to 30 carbon atoms, calcium carbonate, calcium hydroxide, zinc oxide and magnesium oxide, (c) the content of the heat stabilizer is within a range of 0.1 to 20 parts by weight per 100 parts by weight of the polyvinylidene fluoride resin, (d) a weight ratio of the titanium oxide to the heat stabilizer is within a range of 100:1 to 3:1, (e) the titanium oxide is surface treated with a surface treatment agent, and (f) the average primary particle diameter of the titanium oxide is within a range of 150 to 1,000 nm.