| 摘要 |
PROBLEM TO BE SOLVED: To provide a fluorine-containing copolymer film having weather resistance as well as mechanical strength and flexibility.SOLUTION: The film containing a fluorine-containing copolymer is provided which has: a unit derived from a monomer (a); a unit derived from a monomer (b); and one of or both of a unit derived from a monomer (c) and a unit derived from a monomer (d) and which has a tensile stress at break at 25°C of 30 MPa or more and a tensile storage modulus at 25°C of less than 300 MPa. Monomer (a):fluoroethylene. Monomer (b): CXX=CX-[O-(C(=O))-R]-OH, where Xto X: a hydrogen atom or the like, R: a bivalent hydrocarbon or the like, a: 0 or 1, b: 0 or 1. Monomer (c): CXX=CX-R, where Xto Xis a hydrogen atom or the like, R: an alkyl group or the like. Monomer (d):CXX=CX-O-R, where Xto X: a halogen atom or the like and R: a fluoroalkyl group or the like.SELECTED DRAWING: Figure 1 |
