公开(公告)号：US20240052186A1

公开(公告)日：2024-02-15

申请号：US18259120

申请日：2021-06-29

Applicant: KAO CORPORATION

Inventor： Tomohide YOSHIDA ,  Takaaki EYAMA

IPC: C09D11/322 ,  C09D11/52 ,  C09D11/107 ,  B41M5/00 ,  B22F1/0545 ,  B22F1/107 ,  B22F3/10 ,  B22F7/04 ,  B22F9/24

CPC classification number: C09D11/322 ,  C09D11/52 ,  C09D11/107 ,  B41M5/0047 ,  B22F1/0545 ,  B22F1/107 ,  B22F3/10 ,  B22F7/04 ,  B22F9/24 ,  B22F2304/054 ,  B22F2998/10 ,  B22F2301/255 ,  H05K3/12

Abstract: A method of producing a composite material containing a substrate and a metal film formed on the substrate, the method including coating a metallic fine particle-containing ink on the substrate to form the metal film on the substrate. The substrate has a heat resisting temperature of 130° C. or less. The metallic fine particle-containing ink includes metallic fine particles A dispersed with a polymer B, the metallic fine particles A having a volume average particle diameter DA of 10 nm or more and 60 nm or less. The metal film has a cross-sectional porosity of 2% by area or more and 30% by area or less, and the metal film has a content of a metal of 90% by mass or more.

公开(公告)号：US20240367225A1

公开(公告)日：2024-11-07

申请号：US18293444

申请日：2021-08-06

Applicant: KAO CORPORATION

Inventor： Takaaki EYAMA ,  Osamu TAKIGUCHI ,  Tomohide YOSHIDA

IPC: B22F1/0545 ,  B22F1/052 ,  B22F1/054 ,  B22F1/107 ,  B22F7/04 ,  C09J9/02 ,  C09J11/04

Abstract: A copper fine particle dispersion including copper nanoparticles A dispersed in the copper fine particle dispersion with a polymer B, and a dispersion medium C. The polymer B contains a constitutional unit derived from a carboxy group-containing monomer (b-1) and a polyalkylene glycol segment-containing monomer (b-2). A content of the polyalkylene glycol segment in the polymer B is not less than 55% by mass and not more than 97% by mass. An acid value of the polymer B is not less than 20 mgKOH/g and not more than 250 mgKOH/g. The dispersion medium C includes at least one compound selected from the group consisting of a (poly)alkylene glycol, a (poly)alkylene glycol derivative, a terpene alcohol, glycerin and a glycerin derivative.