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:
Mar. 05, 2013
Filed:
Feb. 09, 2011
Chun Lee, Cincinnati, OH (US);
Charles S. Holland, Springboro, OH (US);
James R. Beren, West Chester, PA (US);
Anthony J. DE Nicola, Jr., Newark, DE (US);
Chun Lee, Cincinnati, OH (US);
Charles S. Holland, Springboro, OH (US);
James R. Beren, West Chester, PA (US);
Anthony J. De Nicola, Jr., Newark, DE (US);
Equistar Chemicals, LP, Houston, TX (US);
Abstract
A process of extruding a blend of an irradiated extrudate of a first propylene polymer and a non-irradiated second propylene polymer, where the first propylene polymer comprises a non-phenolic stabilizer. The irradiation of the first propylene polymer extrudate is conducted in a reduced oxygen environment, and the irradiated extrudate of the first propylene polymer and the non-irradiated second propylene polymer are blended at a temperature below their respective melting points. The blend has an ARPSW of ≦3.0 micron.