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:
May. 05, 1998
Filed:
Dec. 16, 1994
Terrence Huff, Baytown, TX (US);
James John McAlpin, Houston, TX (US);
Exxon Chemical Patents, Inc., Houston, TX (US);
Abstract
A thermoplastic polymer composition incorporating at least about 50 wt % polypropylene, at least about 20 wt % of an elastomer such as EP rubber and at least about 4 wt % plastomer. The plastomer is preferably a single site catalyzed ethylene based copolymer having a density less than about 0.915. By adjusting the amount of the plastomer in the composition, considerable control is secured over post-mold shrinkage of components produced through injection molding operations utilizing the composition. The composition can be prepared as a reactor blend or a melt blend. The composition is particularly useful in producing large components such as bumpers and exterior trim fascia for automobiles.