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. 20, 1998
Filed:
Nov. 04, 1996
James P Mason, McKees Rocks, PA (US);
Bayer Corporation, Pittsburgh, PA (US);
Abstract
A process for rapidly improving the flowability, in pellet form, of a molding composition is disclosed. Accordingly, the crystalline content of an amorphous or a semi-amorphous version of a crystallizable thermoplastic resin is increased by subjecting the resin to infra-red radiation to an extent which induces the formation of crystals in the irradiated amorphous resin or the increase of the level of crystals in the semi-amorphous irradiated resins. The resin modified by the inventive process is rendered more suitable for processing: in dried, pellet-form, the modified resin is characterized by its improved flowability. An article molded from the thus modified resin exhibits better properties than does a corresponding article made from a unmodified resins which has been subjected to similar drying conditions.