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:
Jan. 27, 1998
Filed:
Jan. 04, 1996
Applicant:
Inventors:
James Douglas McCullough, Jr, Houston, TX (US);
Jackson Gordon Bowers, Simonton, TX (US);
Assignee:
Union Carbide Chemicals & Plastics Technology Corporation, Danburt, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08L / ;
U.S. Cl.
CPC ...
525 88 ; 525 89 ;
Abstract
Modified polypropylene impact copolymer compositions containing a base polypropylene impact copolymer and a certain modifier have good impact strength, toughness and resistance to stress whitening. The modifier includes a hydrogenated block copolymer having at least one polymeric block of predominantly polymerized monoalkenyl aromatic hydrocarbon monomer units and at least one polymeric block of predominantly polymerized conjugated diolefin monomer units. The modifier may additionally contain a polyethyleneic ethylene-.alpha.-olefin copolymer.