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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 11492471 B1

PDFFull Text
Date of Patent:
Nov. 08, 2022

Filed:

Jul. 18, 2017

Polypropylene resin composition and monolayer and multilayer film

Applicant:

Mitsui Chemicals, Inc., Tokyo, JP;

Inventors:

Akihiko Iwashita, Tokyo, JP;

Shigeyuki Yasui, Chiba, JP;

Assignee:

MITSUI CHEMICALS, INC., Tokyo, JP;

Attorney:

Foley & Lardner LLP

Primary Examiner:

Irina S Zemel

Int. Cl.
CPC ...
C08L 23/12 (2006.01); C08L 23/14 (2006.01); C08F 210/06 (2006.01); B32B 15/085 (2006.01); B32B 27/32 (2006.01); C08F 222/02 (2006.01); C08F 222/06 (2006.01); B65D 65/00 (2006.01); C08L 23/26 (2006.01); H01M 50/10 (2021.01);
U.S. Cl.
CPC ...
C08L 23/12 (2013.01); B32B 15/085 (2013.01); B32B 27/32 (2013.01); B65D 65/00 (2013.01); C08F 210/06 (2013.01); C08F 222/02 (2013.01); C08F 222/06 (2013.01); C08L 23/147 (2013.01); C08L 23/26 (2013.01); H01M 50/10 (2021.01); B32B 2250/03 (2013.01); B32B 2307/306 (2013.01); B32B 2439/70 (2013.01); C08L 2203/16 (2013.01); C08L 2207/12 (2013.01); C08L 2314/06 (2013.01); Y02W 90/10 (2015.05);
Abstract

A propylene polymer satisfying (a) below, a soft propylene copolymer satisfying (b) below, and a polyolefin containing a structural unit derived from an unsaturated carboxylic acid and/or a derivative thereof, wherein (a) a melting point is 100° C. or more, and (b) an MFR is in the range of 0.01 to 100 g/10 min, at least one of the following requirements (b-1) and (b-2) is satisfied: (b-1) a syndiotactic triad fraction s 60% or more, and (b-2) a structural unit derived from propylene is 55 to 90 mol % and a structural unit derived from at least one olefin having 2 to 20 carbon atoms (excluding propylene) is contained at 10 to 45 mol % (with provisos), and the relation between an intrinsic viscosity [η] (dL/g) and the MFR satisfies the relation: 1.50×MFR≤[η]≤2.65×MFR.

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