COATING FLUOROCARBON RESIN AND FLUOROCARBON RESIN SOLUTION

摘要

PURPOSE:To obtain a fluorocarbon resin having expansibility, flexibility, stain resistance, chemical resistance, weather resistance and nonstickiness, by copolymerizing a vinylidene fluoride monomer and a vinyl acetate with a specified elastomeric fluorocarbon copolymer. CONSTITUTION:A fluorocarbon resin formed by copolymerizing at least one monomer containing at least one fluorinated monomer with a monomer having both a double bond and a peroxy bond in the molecule to produce an elastomeric fluorocarbon copolymer (trunk polymer) having a glass transition temperature below room temperature and grafting 40-70pts.wt. vinylidene fluoride monomer (VDF) and vinyl acetate (VAC) onto 100pts.wt. this trunk polymer. The weight ratio of VDF to VAC in grafting is preferably in the range of 80/20-20/80. When the proportion of VAC is below the lower limit, the adhesiveness to an adherend is decreased, and when it is above the upper limit, the weather resistance and stain resistance are lowered undesirably.