HYDROGENATED BLOCK COPOLYMER, POLYPROPYLENE RESIN COMPOSITION, AND MOLDED ARTICLE

Title:

HYDROGENATED BLOCK COPOLYMER, POLYPROPYLENE RESIN COMPOSITION, AND MOLDED ARTICLE

Document Type and Number:

WIPO Patent Application WO/2017/188190

Kind Code:

A1

Abstract:

A hydrogenated block copolymer according to the present invention is a hydrogenated block copolymer comprising, in a molecule, a polymer block (C) having a conjugated diene compound as a main portion, a polymer block (B) having a conjugated diene compound as a main portion, and a polymer block (S) having an aromatic vinyl compound as a main portion, wherein the polymer block (B) contains polymer blocks (B1) and (B2), and in the hydrogenated block copolymer, the polymer block (C) content is 1 to 20 mass%, the polymer block (B) content is 73 to 97 mass%, the polymer block (S) content is 1 to 15 mass%, the vinyl bond amount before the hydrogenation of the polymer block (C) is 1 to 25 mol%, the vinyl bond content of the polymer block (B1) is 40 to 60 mol%, the vinyl bond content of the polymer block (B2) is 60 to 100 mol%, and the hydrogenation ratio is 80 mol% or higher.

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Inventors:

ICHINO HIROYUKI (JP)
KUSANOSE YASUHIRO (JP)
YAMAMOTO MASASHI (JP)
FUJIWARA MASAHIRO (JP)

Application Number:

PCT/JP2017/016231

Publication Date:

November 02, 2017

Filing Date:

April 24, 2017

Export Citation:

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Assignee:

ASAHI CHEMICAL IND (JP)

International Classes:

C08F297/04; B32B1/08; B32B27/00; B32B27/32; C08F8/04; C08L23/10; C08L53/02

Domestic Patent References:

WO2017043542A1

2017-03-16

Foreign References:

JPH02133406A	1990-05-22
JP2001240636A	2001-09-04
JP2005255857A	2005-09-22
JP2016196583A	2016-11-24

Other References: