Patent ID: 8530046

Claim:
An adhesive sheet for protecting coating films comprising a base layer and an adhesive layer, wherein the base layer has a coating layer produced by using a fluoroethylene vinyl ether alternating copolymer represented by the following formula (I) on one surface of a composite film containing an acrylic-based polymer and a urethane polymer wherein X represents fluorine, chlorine or bromine, R a represents hydrogen or an alkyl group with C1 to C10, R b represents an alkyl group with C1 to C16, R c represents an alkylene group with C1 to C16, m and n each represent an integer, and are selected so that a weight-average molecular weight of the fluoroethylene vinyl ether alternating copolymer is within the range of 1,000 to 2,000,000, wherein the adhesive sheet for protecting coating films has a structure in which the composite film and the coating layer are cross-linked and have cross-linked points, and wherein the adhesive sheet comprises the coating layer. the composite film and the adhesive layer in this order.