| 摘要 |
PROBLEM TO BE SOLVED: To provide a binder resin for a conductive paste having excellent adhesiveness to a ceramic green sheet, free from the generation of delamination trouble and exhibiting excellent thermal decomposition property and screen printability and provide a conductive paste. SOLUTION: The binder resin for a conductive paste contains a modified polyvinyl acetal resin composed of structural units expressed by general formulas (1), (2), (3) and (4) shown in the figure. In the formulas, R<SP>1</SP>is a 1-20C straight or branched chain alkyl; R<SP>2</SP>is H or a 1-20C straight-chain, branched chain or cyclic alkyl or an aryl group; and n is an integer of 1-8. The content of the structure unit expressed by general formula (3) in the modified polyvinyl acetal resin is 1-20 mol% and the content of the structure unit expressed by general formula (4) is 30-78 mol%. COPYRIGHT: (C)2006,JPO&NCIPI
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