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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 12018109 B1

PDFFull Text
Date of Patent:
Jun. 25, 2024

Filed:

Nov. 26, 2019

Method for producing chloroprene graft copolymer latex, adhesive containing same and adhesion method

Applicant:

Showa Denko K.k., Tokyo, JP;

Inventors:

Naoki Sekioka, Tokyo, JP;

Masanao Kamijo, Tokyo, JP;

Noriko Ogawa, Tokyo, JP;

Assignee:

Resonac Corporation, Tokyo, JP;

Attorney:

Sughrue Mion, PLLC

Primary Examiner:

Marc S Zimmer

Int. Cl.
CPC ...
C08F 279/02 (2006.01); C08C 19/25 (2006.01); C08F 2/26 (2006.01); C08F 2/30 (2006.01); C08F 230/08 (2006.01); C08L 11/02 (2006.01); C09J 151/04 (2006.01);
U.S. Cl.
CPC ...
C08F 279/02 (2013.01); C08C 19/25 (2013.01); C08F 2/26 (2013.01); C08F 2/30 (2013.01); C08F 230/085 (2020.02); C08L 11/02 (2013.01); C09J 151/04 (2013.01); C09J 2301/304 (2020.08); C09J 2400/143 (2013.01);
Abstract

A method for producing a chloroprene graft copolymer latex includes a step of adding an ethylenic double bond-containing silane coupling agent (B) to a chloroprene polymer latex and graft copolymerizing the ethylenic double bond-containing silane coupling agent (B) to the chloroprene polymer (A) in the chloroprene polymer latex at 10° C. to 50° C. (inclusive). The amount of the ethylenic double bond-containing silane coupling agent (B) added is 0.4 parts by mass to 9.0 parts by mass (inclusive) per 100 parts by mass of the chloroprene polymer (A). The present invention also relates to an adhesive containing the chloroprene graft copolymer latex and to a method for using the adhesive. The present invention can provide a method for producing a chloroprene graft copolymer latex containing no organic solvent and having high adhesive strength to glass, an adhesive containing the same, and a method for using the adhesive.

Find Patent Forward Citations

Sekioka, Naoki. (2024). Method for producing chloroprene graft copolymer latex, adhesive containing same and adhesion method (U.S. Patent No. 12018109). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12018109

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

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