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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 10072116 B1

PDFFull Text
Date of Patent:
Sep. 11, 2018

Filed:

Nov. 05, 2014

Modified propylene-(α-olefin) copolymer, method for producing same, coating material comprising same, resin composition for molding use, and hot-melt composition

Applicant:

Mitsui Chemicals, Inc., Tokyo, JP;

Inventors:

Kuniaki Kawabe, Chiba, JP;

Hirotaka Kanaya, Chiba, JP;

Masakazu Tanaka, Yokohama, JP;

Toshiyuki Ito, Ichihara, JP;

Masako Yoshida, Chiba, JP;

Assignee:

MITSUI CHEMICALS, INC., Tokyo, JP;

Attorney:

Foley & Lardner LLP

Primary Examiner:

Ling Siu Choi

Assistant Examiner:

Ronald Grinsted

Int. Cl.
CPC ...
C08F 255/10 (2006.01); C08F 8/00 (2006.01); C08F 210/06 (2006.01); C08F 255/08 (2006.01); C08L 31/04 (2006.01); C08L 33/04 (2006.01); C08L 51/06 (2006.01); C08L 69/00 (2006.01); C09D 151/06 (2006.01); C09J 151/06 (2006.01); C08F 4/659 (2006.01); C08F 4/6592 (2006.01);
U.S. Cl.
CPC ...
C08F 255/10 (2013.01); C08F 8/00 (2013.01); C08F 210/06 (2013.01); C08F 255/08 (2013.01); C08L 31/04 (2013.01); C08L 33/04 (2013.01); C08L 51/06 (2013.01); C08L 69/00 (2013.01); C09D 151/06 (2013.01); C09J 151/06 (2013.01); C08F 4/65912 (2013.01); C08F 4/65927 (2013.01);
Abstract

The purpose of the present invention is to provide a polar-group-containing propylene-type wax having excellent properties including a low melting point. A modified propylene-(α-olefin) copolymer (A) according to the present invention is produced by grafting at least one compound selected from an unsaturated carboxylic acid, a derivative of the unsaturated carboxylic acid and an unsaturated sulfonic acid salt onto a propylene-(α-olefin) copolymer (A1) and has an acid value of 1 to 100 KOHmg/g, wherein the propylene-(α-olefin) copolymer (A1) comprises 60 to 95 mol % of a propylene-derived constituent unit (a) and 5 to 40 mol % of a constituent unit (b) derived from an α-olefin having 4 or more carbon atoms, and satisfies the specific requirements (i) to (iii).

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