| abstract |
Copolymer latex for non-contact coating of the present invention is copolymerized with aliphatic conjugated diene monomer 23 to 58% by mass, ethylenically unsaturated carboxylic acid monomer 0.1 to 7% by mass, vinyl cyanide compound 5 to 40% by mass and monomers thereof It is obtained by emulsion-polymerizing the monomer containing 0-71.9 mass% of other possible monomers (a total amount of monomers is 100 mass%), and the average particle diameter of the polymer particle contained in the said latex is 50 nm-150 nm. The paper coating composition containing the latex, pigment and the like is suitable for a non-contact coating method such as a curtain coater, spraying, or the like, and can obtain coated paper having excellent surface strength, printing gloss, and the like by good operating properties. |