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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 12297301 B1

PDFFull Text
Date of Patent:
May. 13, 2025

Filed:

Aug. 27, 2021

High-molecular-weight compound and method for producing same, composition and method for producing same, resin composition, additive for lubricating oil, and lubricating oil

Applicant:

Mitsubishi Chemical Corporation, Tokyo, JP;

Inventors:

Shunsuke Chatani, Tokyo, JP;

Yuki Miyahara, Tokyo, JP;

Hiroshi Niino, Tokyo, JP;

Masashi Ikawa, Tokyo, JP;

Haruki Okada, Tokyo, JP;

Fumiko Fujie, Tokyo, JP;

Assignee:

Mitsubishi Chemical Corporation, Tokyo, JP;

Attorney:

Morgan, Lewis & Bockius LLP

Primary Examiner:

James C Goloboy

Int. Cl.
CPC ...
C08F 120/14 (2006.01); C07C 321/14 (2006.01); C07C 333/04 (2006.01); C08L 33/12 (2006.01); C10M 151/02 (2006.01); C10M 151/04 (2006.01); C10M 169/04 (2006.01); C10N 30/00 (2006.01); C10N 30/02 (2006.01);
U.S. Cl.
CPC ...
C08F 120/14 (2013.01); C07C 321/14 (2013.01); C07C 333/04 (2013.01); C08L 33/12 (2013.01); C10M 151/02 (2013.01); C10M 151/04 (2013.01); C10M 169/041 (2013.01); C08F 2810/20 (2013.01); C10M 2203/003 (2013.01); C10M 2221/02 (2013.01); C10N 2030/02 (2013.01); C10N 2030/68 (2020.05);
Abstract

A high-molecular-weight compound having a plurality of polymer chains linked through a divalent or higher-valent linking group, in which the divalent or higher-valent linking group has a thiol group and at least one of a thioether structure and a thiourethane structure, and a ratio of an absolute weight-average molecular weight to a relative weight-average molecular weight (absolute Mw/relative Mw) of the high-molecular-weight compound is 1.25 or more; and a method for producing the same are provided.

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