公开(公告)号：US12104043B2

公开(公告)日：2024-10-01

申请号：US17122804

申请日：2020-12-15

Applicant: TOPPAN PRINTING CO., LTD.

Inventor： Toru Ookubo ,  Daisuke Murata

IPC: C08K5/3492 ,  C08J5/18 ,  C08J7/04 ,  C09D5/32 ,  C09D175/04

CPC classification number: C08K5/3492 ,  C08J5/18 ,  C08J7/0427 ,  C09D5/32 ,  C09D175/04 ,  C08J2323/00 ,  C08J2475/04

Abstract: A protective film that includes at least one of a transparent polyolefin resin layer and a surface protection layer, and that has excellent weather resistance and a low level of white turbidity, which is a factor that impairs design properties; and a sheet using the protective film. The protective film comprises at least a transparent polyolefin resin layer, wherein the transparent polyolefin resin layer contains a first hydroxyphenyltriazine-based ultraviolet absorber (UVA-A) having a structure represented by the general formula below. In the general formula, R1-R3 each independently represent a hydrogen atom, a methyl group, a phenyl group, or an alkoxy group, and at least two of R1-R3 are an alkoxy group having 8-18 carbon atoms, R4 and R5 each independently represent a hydroxyl group, a methyl group, or a hydrogen atom, and R6-R8 each independently represent a methyl group or a hydrogen atom.