SILVER PARTICLE COMPOSITE POWDER AND PROCESS FOR PRODUCTION THEREOF

摘要

A silver particle composite powder obtained by mixing a silver particle powder (A) which bears on the surface of each silver particle an organic protecting layer composed of an amine having one or more unsaturated linkages in one molecule and a molecular weight of 100 to 1000 and has a mean particle diameter DTEM of 50nm or below as determined by TEM with a silver particle powder (B) which bears on the surface of each silver particle an organic protecting layer composed of both a fatty acid having a molecular weight of 100 to 1000 and an amine having a molecular weight of 100 to 1000 with at least either having one or more unsaturated linkages in one molecule and has a mean particle diameter DTEM of 50nm or below at an A:B mass ratio of 3:1 to 1:3 in terms of silver.