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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 12129362 B1

PDFFull Text
Date of Patent:
Oct. 29, 2024

Filed:

Jun. 25, 2019

Anti-aging polar rubber composition, processing method therefor and application thereof

Applicants:

Hangzhou Xinglu Technologies Co., Ltd., Zhejiang, CN;

Zhejiang University, Zhejiang, CN;

Inventors:

Tao Xu, Hangzhou, CN;

Zhi Sheng Fu, Hangzhou, CN;

An Yang Wu, Hangzhou, CN;

Assignees:

HANGZHOU XINGLU TECHNOLOGY CO., LTD., Zhejiang, CN;

ZHEJIANG UNIVERSITY, Zhejiang, CN;

Attorney:

LKGlobal | Lorenz & Kopf, LLP

Primary Examiner:

Mark S Kaucher

Int. Cl.
CPC ...
C08L 23/06 (2006.01); C08L 23/08 (2006.01); C08L 23/16 (2006.01); C08L 23/22 (2006.01); C08L 23/28 (2006.01); C08K 3/013 (2018.01); C08K 5/00 (2006.01); C08K 5/09 (2006.01);
U.S. Cl.
CPC ...
C08L 23/06 (2013.01); C08L 23/0815 (2013.01); C08L 23/16 (2013.01); C08L 23/22 (2013.01); C08L 23/286 (2013.01); C08K 3/013 (2018.01); C08K 5/0016 (2013.01); C08K 5/005 (2013.01); C08K 5/0066 (2013.01); C08K 5/09 (2013.01); C08L 2203/206 (2013.01);
Abstract

Disclosed by the present invention are an anti-aging polar rubber composition, a processing method therefor and an application thereof. The rubber composition comprises: a rubber matrix and a compounding component. In parts by weight, every 100 parts of the rubber matrix comprise 0-99 parts of highly branched polyethylene P1, 0-100 parts of P2, which is a reactant of the highly branched polyethylene P1 and a polar monomer, 0-50 parts of P3, which is a reactant of a copolymer of ethylene and α-olefin and a polar monomer, and 0-50 parts of P4, which is a reactant of a binary, ternary or higher multipolymer of mono-olefin and diene monomer and a polar monomer, and the sum of the contents of P1 and P2 is 50-100 parts; and P1 is an ethylene homopolymer with a branched structure, and has a branching degree of not less than 50 branches/1000 carbons; and the compounding component comprises a vulcanization system. Provided by the present invention is a rubber composition with both aging resistance and certain polarity, which expand the usage range of highly branched polyethylene as an elastomer, and is more suitable for applications with requirements for polarity-related performance such as adhesion performance and oil resistance.

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