| abstract |
The copolymer latex for adhesives contains copolymer latex (A) and copolymer latex (B). Copolymer latex (A) is a monomer containing 35 mass % or more and 75 mass % or less of butadiene monomer, 10 mass % or more and 30 mass % or less of vinylpyridine monomer, and 10 mass % or more and 55 mass % or less of styrene monomer It is an emulsion polymer of the composition (a). Copolymer latex (B) is an emulsion polymer of the monomer composition (b) containing 3 mass % or more and 30 mass % or less of a butadiene monomer. The ratio of the solid content of the copolymer latex (B) to the total amount of the solid content of the copolymer latex (A) and the solid content of the copolymer latex (B) is more than 15 mass%, and is 50 mass% or less, the copolymer latex (B) ), the average particle diameter based on the number is 150 nm or more. |