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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 12570847 B1

PDFFull Text
Date of Patent:
Mar. 10, 2026

Filed:

Oct. 18, 2021

Method for producing composite resin particle dispersion, method for producing pressure-sensitive adhesive, method for producing pressure-responsive resin, method for producing toner for electrostatic charge image development, and composite resin particle dispersion

Applicant:

Fujifilm Business Innovation Corp., Tokyo, JP;

Inventors:

Sumiaki Yamasaki, Kanagawa, JP;

Kiyohiro Yamanaka, Kanagawa, JP;

Takahiro Ishizuka, Kanagawa, JP;

Yasunobu Kashima, Kanagawa, JP;

Satoshi Inoue, Kanagawa, JP;

Assignee:

FUJIFILM Business Innovation Corp., Tokyo, JP;

Attorney:

Sughrue Mion, PLLC

Primary Examiner:

Mark F Huff

Assistant Examiner:

Charles Collins Sullivan, IV

Int. Cl.
CPC ...
C08F 212/08 (2006.01); C08F 220/18 (2006.01); C08L 25/14 (2006.01); C08L 33/08 (2006.01); C09J 125/14 (2006.01); C09J 133/08 (2006.01); G03G 9/087 (2006.01);
U.S. Cl.
CPC ...
C08L 33/08 (2013.01); C08F 212/08 (2013.01); C08F 220/1808 (2020.02); C08L 25/14 (2013.01); C09J 125/14 (2013.01); C09J 133/08 (2013.01); G03G 9/08711 (2013.01); G03G 9/08728 (2013.01); C08L 2201/54 (2013.01);
Abstract

A method for producing a composite resin particle dispersion includes: polymerizing a (meth)acrylic acid ester compound to form a (meth)acrylic acid ester-based resin; and polymerizing a styrene compound and a vinyl monomer other than the styrene compound in the presence of the (meth)acrylic acid ester-based resin to form composite resin particles containing a styrene-based resin and the (meth)acrylic acid ester-based resin. The mass ratio of the styrene-based resin to the (meth)acrylic acid ester-based resin in the composite resin particles is from 80:20 to 20:80. A difference between the lowest glass transition temperature and the highest glass transition temperature in the composite resin particles is 30° C. or more.

Find Patent Forward Citations

Yamasaki, Sumiaki. (2026). Method for producing composite resin particle dispersion, method for producing pressure-sensitive adhesive, method for producing pressure-responsive resin, method for producing toner for electrostatic charge image development, and composite resin particle dispersion (U.S. Patent No. 12570847). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12570847

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

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