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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 9732215 B1

PDFFull Text
Date of Patent:
Aug. 15, 2017

Filed:

May. 02, 2013

Block copolymer composition, and sheet

Applicant:

Denki Kagaku Kogyo Kabushiki Kaisha, Tokyo, JP;

Inventors:

Tadashi Sawasato, Ichihara, JP;

Eiji Sato, Ichihara, JP;

Hitoshi Nakazawa, Ichihara, JP;

Shinya Uekusa, Ichihara, JP;

Assignee:

DENKA COMPANY LIMITED, Tokyo, JP;

Attorney:

Stein IP, LLC

Primary Examiner:

Walter B Aughenbaugh

Int. Cl.
CPC ...
C08L 53/02 (2006.01); C08L 25/10 (2006.01); C08F 297/04 (2006.01); B32B 1/02 (2006.01); B65D 37/00 (2006.01); B65D 33/00 (2006.01); B65D 1/00 (2006.01); C08K 5/101 (2006.01); C08K 5/20 (2006.01); C08L 25/06 (2006.01);
U.S. Cl.
CPC ...
C08L 53/02 (2013.01); B32B 1/02 (2013.01); B65D 1/00 (2013.01); B65D 33/00 (2013.01); B65D 37/00 (2013.01); C08F 297/04 (2013.01); C08F 297/042 (2013.01); C08F 297/044 (2013.01); C08F 297/046 (2013.01); C08F 297/048 (2013.01); C08K 5/101 (2013.01); C08K 5/20 (2013.01); C08L 25/06 (2013.01); C08L 25/10 (2013.01); C08L 2201/10 (2013.01); C08L 2205/025 (2013.01); C08L 2205/03 (2013.01); Y10T 428/13 (2015.01); Y10T 428/1324 (2015.01); Y10T 428/1328 (2015.01); Y10T 428/1331 (2015.01); Y10T 428/1334 (2015.01); Y10T 428/1352 (2015.01);
Abstract

A block copolymer composition with a good balance of physical properties suitable for various types of packaging such as food product containers, beverage containers, industrial containers and blister packs, having excellent transparency, gloss, strength, rigidity and formability, having excellent anti-blocking properties and anti-sticking properties, and excelling in the aforementioned properties even when used in mixture with vinyl aromatic hydrocarbon-type polymers is offered. A block copolymer composition of a vinyl aromatic hydrocarbon and a conjugated diene, wherein a block copolymer component (I) having a molecular weight peak in the range of molecular weight 150,000 to 300,000 and comprising tapered blocks has a conjugated diene content of 10 to 20 mass %; a block copolymer component (II) having a molecular weight peak in the range of molecular weight 50,000 to 140,000 and comprising tapered blocks has a conjugated diene content of 30 to 50 mass %; and a ratio (I)/(II) between molecular weight peak areas occupied by block copolymer component (I) and block copolymer component (II) in the block copolymer composition is 20/80 to 80/20.

Find Patent Forward Citations

Sawasato, Tadashi. (2017). Block copolymer composition, and sheet (U.S. Patent No. 9732215). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9732215

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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