Blockpolymer, Polymerzusammensetzung und Klebstoff

Details

Veröffentlichungs-Nr.

EP4056613

Aktenzeichen

EP22161559

Anmeldetag

11. März 2022

Veröffentlichung

14. September 2022

Rechtsraum

EP

IPC

C08F297/04C08J5/18C08L53/02C09J7/24C09J153/02

Abstract

Provided is a block polymer capable of providing an adhesive that is excellent in initial adhesiveness, low increase in adhesiveness, expandability, and oil resistance, and that hardly leaves an adhesive residue on an adherend.Provided is a block polymer including two or more polymer block As each having a value β of 0.20 or less and a functional group F containing at least one element selected from a group consisting of nitrogen, silicon, oxygen, and sulfur in a part or all of terminals of the two or more polymer block As, in which the block polymer has a value α of 0.75 or more, when p, q, r and s are defined as a component proportion (molar proportion) of a structural unit represented by Formula (1), a component proportion of a structural unit represented by Formula (2), a component proportion of a structural unit represented by Formula (3), and a component proportion of a structural unit represented by Formula (4), in the polymer, respectively. α=p+0.5×r/p+q+0.5×r+sβ=p+q/p+q+0.5×r+s

Anmelder

Firmen

ENEOS Materials Corporation
JSR Corporation

Land

🇯🇵 Japan

Fachgebiete