C - Chemistry – Metallurgy – 08 – J
Patent
C - Chemistry, Metallurgy
08
J
204/91.62, 204/9
C08J 7/18 (2006.01) B05D 3/06 (2006.01) C08J 7/04 (2006.01)
Patent
CA 1141330
TITLE Process for Improving the Adhesion of Paint to Polyolefin Surfaces ABSTRACT OF THE DISCLOSURE Surfaces of articles made of polyethylene polypropylene, crystalline dipolymers of ethylene with propylene, blends of two or more of the above, and blends of any of the above with elastomeric ethylene/ propylene copolymers or with EPDM copolymers are primed for painting by coating with chlorinated poly- propylene and exposing to ultraviolet radiation. This treatment improves both dry and wet adhesion of paint to surfaces of articles made of single polyolefins as well as of their blends with elastomeric copolymers in which the latter constitute at most 50% of the total polymer. LC-2119
351863
E. I. Du Pont de Nemours And Company
Mccallum Brooks & Co.
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