| 摘要 |
PROBLEM TO BE SOLVED: To provide a binder for coating, excellent in adhesiveness not only with a polypropylene-made substrate, but also a cycloolefin polymer-made substrate and light resistance.SOLUTION: There is provided a binder for coating containing a polyolefin resin and an aqueous medium, where the polyolefin resin contains an olefin component and an unsaturated carboxylic acid component as a copolymer component, the olefin component consists of propylene and butene, the mass ratio between the propylene and the butene (propylene/butene) is 60/40 to 95/5 and the content of the unsaturated carboxylic acid component as the copolymer component is 1 pts.mass or more based on 100 pts.mass of the olefin component and an unsaturated carboxylic acid monomer amount in a dry residue of the binder for coating is 10,000 ppm or less. |
