公开(公告)号：CA2017713A1

公开(公告)日：1990-11-30

申请号：CA2017713

申请日：1990-05-29

Applicant: KAO CORP

Inventor： YAMAMOTO YUZO ,  IWASAKI MASAKI ,  HAISHI TOMOYUKI ,  HAYASHI HIROMITSU ,  RAKUE YUMI

IPC: C08K3/08 ,  C09D5/24 ,  H01B1/20 ,  H01B1/22 ,  H01B1/24 ,  H05K1/09 ,  H05K9/00

Abstract: An electrically conductive paste composition comprises an electrically conductive powder, an organic binder comprising a polymer of a hydroxystyrene having the formula (A) or a copolymer of hydroxystyrene having the formula (B), said polymer and copolymer each having a weight-average molecular weight of 1,000 to 2,000,000, and a solvent. In the formula, Y and Z are an amine group and others. (A) (B)

公开(公告)号：CA2031119A1

公开(公告)日：1991-06-02

申请号：CA2031119

申请日：1990-11-29

Applicant: KAO CORP

Inventor： YAMAMOTO YUZO ,  HAISHI TOMOYUKI ,  HAYASHI HIROMITSU ,  IWASAKI MASAKI ,  RAKUE YUMI

IPC: C08L25/18 ,  C08K3/08 ,  C08L25/00 ,  C09D125/18 ,  H01B1/20 ,  H05K1/09 ,  C09D5/24

Abstract: 65702-376 An electrically conductive paste composition comprises an electrically conductive powder, an organic binder comprising (A) a polyhydroxystyrene derivative and (B) a thermosetting resin at a weight ratio of (A) to (B) and a solvent. The paste is used for an electric circuit printed on a substrate and has improved migration resistance, flexibility and reliability.

公开(公告)号：CA2046193A1

公开(公告)日：1992-01-07

申请号：CA2046193

申请日：1991-07-04

Applicant: KAO CORP

Inventor： YAMAMOTO YUZO ,  MIZUSHIMA HIROMOTO ,  RAKUE YUMI

IPC: C09D5/24 ,  H01B1/22 ,  H01B5/00 ,  H01B5/14 ,  H05K1/09 ,  H05K3/12 ,  H01B1/20

Abstract: An electrically conductive paste composition comprises an electrically conductive powder, a solvent and an organic binder comprising one or more monohydric phenol adduct compound selected from the group consisting of: (a) a monohydric phenol adduct of an unsaturated fatty acid, its metal salt or an unsaturated fatty acid ester, (b) a saturated or unsaturated fatty acid ester of said phenol adduct (a), (c) a sulfonation product of said phenol adduct (a) and (d) an amination product of said phenol adduct. It is applied to a resin article to provide an electric circuit having an improved adhesion.

公开(公告)号：JPH03173007A

公开(公告)日：1991-07-26

申请号：JP31297889

申请日：1989-12-01

Applicant: KAO CORP

Inventor： YAMAMOTO YUZO ,  HAISHI TOMOYUKI ,  HAYASHI HIROMITSU ,  IWASAKI MASANORI ,  RAKUE YUMI

IPC: C08L25/18 ,  C08K3/08 ,  C08L25/00 ,  C09D125/18 ,  H01B1/20 ,  H05K1/09

Abstract: PURPOSE:To improve migration resistance and flexibility by a method wherein an organic binder contains a specific polyhydroxystylene derivative and thermosetting resin and a compounding quantity of conductive powder is set at 50-90wt.% of the total weight exclusive of the solvent. CONSTITUTION:An organic binder contains polyhydroxystylene derivative expressed by formula I and thermosetting resin, and a compounding quantity of conductive powder is 90wt.% of its total weight excluding a solvent. In the formula I, n=n>=3, and it is an arbitrary number until a number-average molecular weight of organic macromolecule becomes 10,000, m = a number of 0 -R represent H or an alkyl group of 5C. In case the compounding quantity of conductive powder is less than 50wt.%, sufficient conductivity cannot be obtained, and reversely, in case it is more than 90wt.%, the flexibility and migration resistance of film deteriorate. It is thereby possible to greatly improve the migration resistance and flexibility of paste film.