| abstract |
PROBLEM TO BE SOLVED: To provide a copolymer latex for paper coating excellent in surface strength and ink adhesion property and low in odor, especially for offset printing, and for coating white coated paperboard suitable for food use. Provide copolymer latex. SOLUTION: 1,3-butadiene 20 to 60% by weight, A copolymer obtained by emulsion polymerization of a total of 100 parts by weight of a monomer comprising 1 to 10% by weight of an ethylenically unsaturated carboxylic acid monomer and 30 to 79% by weight of another monomer copolymerizable therewith. A copolymer latex for paper coating, wherein 4-vinylcyclohexene remaining in the copolymer latex is 30 ppm or less based on the solid content of the copolymer latex. |