IDiyas

For the Inventor, By the Inventor

The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 9662270 B1

PDFFull Text
Date of Patent:
May. 30, 2017

Filed:

Sep. 03, 2015

Film for liquid packaging containers and liquid packaging container

Applicant:

Kuraray Co., Ltd., Kurashiki-shi, JP;

Inventors:

Yusuke Nojima, Kamisu, JP;

Yusuke Tanaka, Kamisu, JP;

Yosuke Jogo, Kamisu, JP;

Shinya Oshita, Kamisu, JP;

Assignee:

KURARAY CO., LTD., Kurashiki-shi, JP;

Attorney:

Oblon, McClelland, Maier & Neustadt, L.L.P.

Primary Examiner:

Yan Lan

Int. Cl.
CPC ...
A61J 1/05 (2006.01); A61J 1/14 (2006.01); A61J 1/10 (2006.01); B65D 65/40 (2006.01); C08J 5/18 (2006.01); B32B 27/08 (2006.01); B32B 27/30 (2006.01); B32B 27/32 (2006.01); B32B 25/08 (2006.01); B32B 25/16 (2006.01); B32B 25/12 (2006.01);
U.S. Cl.
CPC ...
A61J 1/1468 (2015.05); A61J 1/10 (2013.01); B32B 25/08 (2013.01); B32B 25/12 (2013.01); B32B 25/16 (2013.01); B32B 27/08 (2013.01); B32B 27/302 (2013.01); B32B 27/32 (2013.01); B65D 65/40 (2013.01); C08J 5/18 (2013.01); B32B 2553/00 (2013.01); C08J 2323/14 (2013.01); C08J 2453/02 (2013.01); Y10T 428/1393 (2015.01);
Abstract

A film for a liquid packaging container, comprising at least one of a layer containing a resin composition (X) containing a polypropylene resin (a) and at least one of a hydrogenated block copolymer (b), the hydrogenated block copolymer (b) being a hydrogenated product of a block copolymer containing a polymer block (A) mainly containing an aromatic vinyl compound unit, and a polymer block (B) mainly containing an isoprene (Ip) unit, a butadiene (Bd) unit, or isoprene (Ip) and butadiene (Bd) units, in the resin composition (X), the hydrogenated block copolymer (b) having a phase separation structure having formed therein both (i) an island phase having a long axis of 1 μm or more, or a bicontinuous structure, and (ii) an island phase having a long axis of 300 nm or less, and in the resin composition (X), the mass ratio ((a)/((a)+(b))) of the polypropylene resin (a) and the hydrogenated block copolymer (b) being from 61/100 to 95/100.

Find Patent Forward Citations

Loading…