公开(公告)号：US20230257492A1

公开(公告)日：2023-08-17

申请号：US18005170

申请日：2021-04-19

Applicant: NIPPON PAPER INDUSTRIES CO., LTD.

Inventor： Tomohiro OKEDA ,  Takato TAKENAKA ,  Isamu ONO ,  Minoru YADA ,  Hiroko IWAKIRI

IPC: C08F20/18 ,  C08F8/46 ,  C09D151/06 ,  C08F255/02 ,  C09D11/106

CPC classification number: C08F20/18 ,  C08F8/46 ,  C09D151/06 ,  C08F255/02 ,  C09D11/106 ,  B32B15/20

Abstract: An object of the present invention is to provide a modified polyolefin resin composition having a high polyethylene content and exhibiting a good balance between a low-temperature stability and an adhesion to a polyethylene substrate and a metal. The present invention provides a modified polyolefin resin that is a graft-modified product in which a component (A) that is a polyolefin resin having an ethylene structural unit content of 50% or more by mole is modified with a component (B) that is an α,β-unsaturated carboxylic acid or an anhydride thereof and a component (C) that is a (meth)acrylate ester represented by the following general formula (I), and an extrapolated melting end temperature (Tem) of the modified polyolefin resin measured in accordance with JIS K7121-1987 using a differential scanning calorimeter at a temperature raising rate of 10° C./minute is 58° C. or lower.