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:
Jun. 28, 1994
Filed:
Oct. 22, 1993
Darrel E Kilius, New Castle County, DE (US);
Kyle D Eastenson, New Castle County, DE (US);
Himont Incorporated, Wilmington, DE (US);
Abstract
Disclosed are compositions comprising, (a) a propylene polymer material grafted in the solid state with (i) styrenic polymer and further comprising (ii) ungrafted styrenic polymer, and, optionally (iii) a vinyl comonomer and when the optional vinyl comonomer is used, (iv) styrenic-vinyl copolymer; and (b) glass fibers treated with an organic silane compound; and optionally (c) at least one rubber polymer component comprising (1) from about 0 to 100% of at least one of (i) monoalkenyl aromatic hydrocarbon-conjugated diene block copolymers, (ii) hydrogenated products of (i), or (iii) mixtures of (i) and (ii); and (2) from about 100 to 0% of an olefin copolymer rubber; and (d) a coupling agent for the glass fibers and propylene polymer material plus said rubber polymer. The compositions exhibit a preferred balance of stiffness and impact strength at moderate cost and exhibit excellent surface qualities, making them particularly useful in molded parts.