Propylene resin composition and coating method using the same

Details Propylene resin composition and coating method using the same Propylene resin composition and coating method using the same

1997-02-06

1999-11-23

Wilson, Donald R.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

524451, 525 70, 525 71, 525 87, C08L 5106, C08K 334

Patent

active

059902205

ABSTRACT:
A propylene resin composition having suitability to coating is disclosed which comprises (a) 100 parts by weight of a propylene-ethylene block copolymer comprising 60 to 95% by weight of a crystalline polypropylene unit and 5 to 40% by weight of an ethylene-propylene random copolymer unit, (b) 2 to 120 parts by weight of an ethylene-.alpha.-olefin copolymer obtained by polymerization using a metallocene catalyst, containing 20 to 65% by weight of an .alpha.-olefin having 3 to 8 carbon atoms, and having a melt flow rate of 0.5 to 40 g/10 min and a density of 0.85 to 0.90 g/cm.sup.3, (c) 0.1 to 120 parts by weight of a filler selected from talc, mica, and a fibrous filler, (d) 5 to 40% by weight of a propylene polymer having grafted thereto 0.1 to 25% by weight, based on the total polymer, of maleic anhydride or a hydroxyl-containing maleic anhydride derivative, and (e) 0 to 10% by weight of a hydroxyl-terminated diene polymer or a hydrogenation product thereof. A molded article obtained from the propylene resin composition can be coated with a melamine coating without cleaning with trichloroethane or primer coating to provide a coated article having high adhesion to the coating, appearance, and well-balanced high mechanical strength.

REFERENCES:
patent: 5354618 (1994-10-01), Ishigaki et al.
patent: 5462987 (1995-10-01), Shinonaga et al.
patent: 5556910 (1996-09-01), Harada et al.
patent: 5585187 (1996-12-01), Shinonaga et al.
Database WPI, Derwent Publications, AN-97-128932, JP-A-9-012832, Jan. 14, 1997.
Database WPI, Derwent Publications, AN-96-157216, JP-8-041276, Feb. 13, 1996.
Database WPI, Derwent Publications, AN-96-157214, JP-8-041274, Feb. 13, 1996.
Database WPI, Derwent Publications, AN-95-204006, JP-7-118488, May 9, 1995.

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