| 摘要 |
A coating composition suitable for painting onto a polyethylene or polypropylene article comprises by weight:- (a) 100 parts of an acrylic copolymer containing 0.3 to 30 wt.% of an acrylic monomer containing basic nitrogen, e.g. in an amino ester of (meth)acrylic acid, and 99.8 to 30 wt.% of another monomer, (b) 0.5 to 30 parts of an epoxy compound having three or more epoxy radicals, which bridge reacts with copolymer (a), and (c) 1 to 100 parts of a chlorinated polyethylene or polypropylene, of 20 to 40 molar % chlorination. An organic solvent is also included. The composition can be prepared in two solutions containing respectively (i) the component (a) and preferably a pigment, and (ii) components (b) and (c). The composition adheres well. It can be overpainted if desired. |
