Lee W Spence

US Patent:

4945005, Jul 31, 1990

Filed:

Jul 28, 1989

Appl. No.:

7/387407

Inventors:

David J. Cherry - Grapevine TX
Lee R Spence - Arlington TX

Assignee:

Dexter Corporation - Windsor Locks CT

International Classification:

C08L 2326
C08L 2304
C08L 3302
C08K 300
C08K 334

US Classification:

428500

Abstract:

Thermoplastic compositions and articles made therefore which have a high receptivity toward automotive paints comprises components (a), (b), (c), (d), and (e), wherein, for example 2%-25% (a) is a copolymer of an ethylenically unsaturated carboxylic acid and ethylene, 3%-50% (b) is an elastomer comprising an ethylene-alpha-olefin copolymer, 0%-55% (c) is a crystalline homopolymer or copolymer of propylene, 5%-50% (d) is an inorganic filler, and 10%-35% (e) is polyethylene or a copolymer of ethylene and an alpha-olefin. Such articles, when injection molded, exhibit flexural moduli in the range of 30,000 to 400,000 psi and have excellent paintability, a broad range of stiffness values and high impact and tensile strengths suitable for automotive applications such as bumpers and facias and wheel covers.