Self-Healing Paint Protection Film

Abstract

A self-healing paint protection film includes: a substrate layer including a thermosetting polyurethane resin and a curing agent; a top coating layer formed on one side of the substrate; an adhesive layer formed on the other side of the substrate layer; and a pattern layer formed between the substrate layer and the top coating layer, wherein a polyester-based resin having a weight-average molecular weight of 40,000 to 60,000 and a glass transition temperature of 20° C. to 60° C. is used as the thermosetting polyurethane resin, and therefore the paint protection film has excellent elasticity, is easy to apply, enhances paint visibility, and exhibits excellent self-healing properties through contraction and relaxation, thus being appropriate for use on curved surfaces of automobiles and the like.

Dependencies are inferred from the claim text.