CARBOXY GROUP-CONTAINING POLYMER DISPERSANT, ELECTROCONDUCTIVE PASTE, ELECTRONIC COMPONENT, AND LAMINATED CERAMIC CAPACITOR

Title:

CARBOXY GROUP-CONTAINING POLYMER DISPERSANT, ELECTROCONDUCTIVE PASTE, ELECTRONIC COMPONENT, AND LAMINATED CERAMIC CAPACITOR

Document Type and Number:

WIPO Patent Application WO/2024/024534

Kind Code:

A1

Abstract:

The present invention provides: a low viscosity electroconductive paste that can suppress separation between electroconductive powder and ceramic powder, has good viscosity stability over time, and has good smoothness of a dry membrane surface after application; a carboxy group-containing polymer dispersant; an electronic component; and a laminated ceramic capacitor.　This carboxy group-containing polymer dispersant comprises a copolymer of at least one of an acrylic acid or methacrylic acid, and at least one of an acrylic acid ester represented by general formula (1) or a methacrylic acid ester represented by general formula (2). In the dispersant, the mass-average molecular weight is 2000 or greater and less than 30,000, for the mole ratio, the ratio of the total of the acrylic acid and the methacrylic acid to the total of the acrylic acid ester and the methacrylic acid ester is X:1–X, X is 0.1 or greater and less than 0.4, and in general formula (1) and general formula (2), R1 is a straight chain or a branched alkyl group.

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Inventors:

FUKUDA KENJI (JP)
KAWAGUCHI SEIGOU (JP)
YAMAMOTO SEIYA (JP)

Application Number:

PCT/JP2023/025984

Publication Date:

February 01, 2024

Filing Date:

July 14, 2023

Export Citation:

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Assignee:

SUMITOMO METAL MINING CO (JP)
UNIV YAMAGATA NAT UNIV CORP (JP)

International Classes:

H01G4/30; C08F220/06; C08F220/18; C08K3/08; C08K3/22; C08L33/06; C09C3/10; C09D17/00; C09K23/52; H01B1/22

Foreign References:

JPS6477110A	1989-03-23
JP2003055571A	2003-02-26
JP2007238859A	2007-09-20

Attorney, Agent or Firm:

TAKINO, Fumio et al. (JP)

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