HYDROGENATED BLOCK COPOLYMER

Title:

HYDROGENATED BLOCK COPOLYMER

Document Type and Number:

WIPO Patent Application WO/2020/004631

Kind Code:

A1

Abstract:

Provided is a hydrogenated block copolymer that is a hydrogenated product of a block copolymer containing: polymer blocks (A1) and (A2) mainly composed of structural units derived from aromatic vinyl compounds; and polymer blocks (B) and (C) mainly composed of structural units derived from conjugated diene compounds. At least one of the polymer blocks (B) and (C) is present between the polymer blocks (A1) and (A2). In the hydrogenated block copolymer, the total content of the polymer blocks (A1) and (A2) is 5-30 mass%; the content of the 3,4-bond and 1,2-bond of the polymer block (B) is 1-40 mol%; the content of the 3,4-bond and 1,2-bond of the polymer block (C) is 50-100 mol%; and the mass ratio [(C)/(B)+(C)] of the polymer block (C) with respect to the total amount of the polymer blocks (B) and (C) is 26/100 to 63/100.

Inventors:

TAKAHASHI NAOTO (JP)
NOJIMA YUSUKE (JP)

Application Number:

PCT/JP2019/025862

Publication Date:

January 02, 2020

Filing Date:

June 28, 2019

Export Citation:

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Assignee:

KURARAY CO (JP)

International Classes:

C08F297/04; A61J1/10; B32B27/30; B65D65/40; C08L23/10; C08L53/02

Foreign References:

JP2016155604A	2016-09-01
JP2014520928A	2014-08-25
JP2009149861A	2009-07-09
JP2016155604A	2016-09-01

Other References: