The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 23, 2003
Filed:
Oct. 10, 2000
Dominic A. Berta, Newark, DE (US);
Basell Poliolefine Italia S.p.A., Milan, IT;
Abstract
A directly paintable polyolefin composition contains (1) a graft copolymer, composition containing (a) a graft copolymer having a backbone of propylene polymer material having graft polymerized thereto at least one vinyl monomer capable of being polymerized by free radicals, (b) a rubber component, and, optionally, (c) a broad molecular weight distribution propylene polymer material, (2) an oxidized polyethylene wax, (3) a propylene-homopolymer or copolymer grafted with an anhydride of an aliphatic &agr;,&bgr;-unsaturated dicarboxylic acid, (4) a functionalized polymer that is reactive with the anhydride groups of the grafted polymers, (5) optionally, a polyolefin rubber grafted with an anhydride of an aliphatic &agr;,&bgr;-unsaturated dicarboxylic acid, and (6) optionally, an ethylene polymer grafted with an anhydride of an aliphatic &agr;,&bgr;-unsaturated dicarboxylic acid. The compositions are particularly useful for making injection molded automobile parts and exhibit excellent paint adhesion and durability.