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:
Sep. 22, 1992
Filed:
Dec. 11, 1990
George E Ealer, Whitehouse Station, NJ (US);
Union Carbide Chemicals & Plastics Technology Corporation, Danbury, CT (US);
Abstract
A process for preparing a low haze molded article includes adding a nucleating agent to a polypropylene homopolymer or copolymer to form prenucleated polypropylene having a molecular weight of at least about 20,000 and an isotactic index of at least about 60 percent, and forming a molding composition by mixing the prenucleated polypropylene with linear low density polyethylene having a melt index of at least about 120 grams per 10 minutes, in an amount of about 1 to 5 percent by weight based on the total weight of the polyethylene and the polypropylene. This mixture is then introduced into an injection molding zone where it is molded at a temperature below the melting point of the polypropylene.