Invention Application
- Patent Title: ELECTROCONDUCTIVE PASTE
- Patent Title (中): 电焊膏
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Application No.: US15124442Application Date: 2015-03-16
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Publication No.: US20170037271A1Publication Date: 2017-02-09
- Inventor: Hiroko KOBAYASHI , Kenji YAMAUCHI , Shintaro MORIGUCHI , Jiro MIYAI
- Applicant: Sekisui Chemical Co., Ltd.
- Applicant Address: JP Osaka-shi, Osaka
- Assignee: SEKISUI CHEMICAL CO., LTD.
- Current Assignee: SEKISUI CHEMICAL CO., LTD.
- Current Assignee Address: JP Osaka-shi, Osaka
- Priority: JP2014-058688 20140320; JP2014-202342 20140930
- International Application: PCT/JP2015/057692 WO 20150316
- Main IPC: C09D11/52
- IPC: C09D11/52 ; H01G4/008 ; C09D131/04 ; C08K3/08 ; C09D11/106 ; C09D11/033

Abstract:
The present invention provides a conductive paste that has excellent printability, that can provide a printed electrode with a smooth surface, and that is excellent in storage stability. The present invention relates to a conductive paste used for formation of an electrode of a multilayer ceramic capacitor, the conductive paste including: a polyvinyl acetal resin that contains a carboxylic acid-modified polyvinyl acetal resin; an organic solvent; and a conductive powder, the polyvinyl acetal resin having an average degree of polymerization of 200 to 800, an carboxyl group content of 0.05 to 1 mol %, a hydroxy group content of 16 to 24 mol %, an acetyl group content of 0.1 to 3 mol %, and an acetoacetal group content of not more than 25 mol %, the carboxylic acid-modified polyvinyl acetal resin having at least one of a structural unit that has a carboxyl group represented by the formula (1-1) and a structural unit that has a carboxyl group represented by the formula (1-2): in the formula (1-1), R1 and R2 each independently representing a C0-C10 alkylene group, X1 and X2 each independently representing a hydrogen atom, a metal atom, or a methyl group, in the formula (1-2), R3, R4, and R5 each independently representing a hydrogen atom or a C1-C10 alkyl group, R6 representing a C0-C10 alkylene group, X3 representing a hydrogen atom, a metal atom, or a methyl group.
Public/Granted literature
- US09796866B2 Electroconductive paste Public/Granted day:2017-10-24
Information query
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