FILM - ASAHI CHEMICAL IND

Title:

FILM

Document Type and Number:

WIPO Patent Application WO/2017/043549

Kind Code:

A1

Abstract:

A film in which an outer layer includes a polypropylene resin, an intermediate layer includes a polypropylene resin and a hydrogenated block copolymer (a), and an inner layer includes a polypropylene resin. The hydrogenated block copolymer (a) includes a polymer block (C) having a conjugated diene compound as the main constituent, a polymer block (B) having a conjugated diene compound as the main constituent, and a polymer block (S) having a vinyl aromatic compound as the main constituent. In the hydrogenated block copolymer (a), the content of the polymer block (C) is 1–30 mass%, the content of the polymer block (B) is 69–98 mass%, and the content of the polymer block (S) is 1–20 mass%. The vinyl bond content of the polymer block (C) prior to hydrogenation is 1–25 mol%, the vinyl bond content of the polymer block (B) prior to hydrogenation is 60–100 mol%, and the degree of hydrogenation of the hydrogenated block copolymer (a) is at least 80 mol%. This film has excellent transparency and flexibility, and an excellent balance of these properties.

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Inventors:

YAGI NORIKO (JP)
KUSANOSE YASUHIRO (JP)
ICHINO HIROYUKI (JP)
FUJIWARA MASAHIRO (JP)

Application Number:

PCT/JP2016/076351

Publication Date:

March 16, 2017

Filing Date:

September 07, 2016

Export Citation:

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Assignee:

ASAHI CHEMICAL IND (JP)

International Classes:

B32B27/32; C08F293/00

Foreign References:

JP2005125706A	2005-05-19
JP2003246021A	2003-09-02
JPH09254339A	1997-09-30
JP2001150600A	2001-06-05
JP2009191187A	2009-08-27
JP2006001092A	2006-01-05
JP2010053319A	2010-03-11
JP2001329074A	2001-11-27

Other References: