Carbon material dispersion

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12237097
APP PUB NO 20230212343A1
SERIAL NO

17999767

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Abstract

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The present invention provides a carbon material dispersion in which a carbon material is contained at a high concentration in a liquid medium containing an organic solvent but is unlikely to reaggregate and is stably dispersed, and from which various products, such as an ink capable of forming a coating film having excellent electric conductivity, can be formed. This carbon material dispersion contains a carbon material, an organic solvent, and a polymeric dispersant, wherein the polymeric dispersant is a polymer having 3 to 55% by mass of a constituent unit (1) represented by the following formula (1), wherein R represents a hydrogen atom or the like, A represents O or NH, B represents an ethylene group or the like, R1 and R2 each independently represent a methyl group or the like, Ar represents a phenyl group or the like, X represents a chlorine atom or the like, and p represents an arbitrary number of repeating units, and the polymeric dispersant has an amine value of 100 mgKOH/g or less and a number average molecular weight of 5,000 to 20,000.

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Patent Owner(s)

  • DAINICHISEIKA COLOR & CHEMICALS MFG. CO., LTD

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Doi, Seiji Tokyo, JP 39 331
Kamabayashi, Jun Tokyo, JP 7 3
Murakami, Yoshikazu Tokyo, JP 68 572
Shimanaka, Hiroyuki Tokyo, JP 39 196

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