公开(公告)号：US20240301239A1

公开(公告)日：2024-09-12

申请号：US18289265

申请日：2022-05-09

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Yongshang Lu ,  Charlie Chia-Tie Ho ,  Timothy J. Brookshaw ,  Jay M. Jennen ,  Todd G. Pett ,  Tong Wei ,  David P. Siglin

IPC: C09D175/14 ,  C08G18/62

CPC classification number: C09D175/14 ,  C08G18/6225 ,  C08G2150/00

Abstract: Provided is a surfacing film that includes a plurality of layers. The layers include a first clear coat layer made from a crosslinked polyurethane that is a reaction product of a reactive mixture including an isocyanate and a polyol containing a styrene repeat unit and a hydroxyl-containing (meth)acrylate repeat unit. The surfacing film further includes a bulk layer made from a thermoplastic polyurethane and an adhesive layer. Optionally, the surfacing film includes second clear coat layer, which can be made from a polyurethane that is at least partially crosslinked. The resulting surfacing film can display high stain resistance, high peel strength, superior scratch resistance and self-healing properties.