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. 07, 2004
Filed:
Nov. 16, 2001
Applicant:
Inventors:
Kimberly Miller McLoughlin, Gibsonia, PA (US);
Edwin B. Townsend, Pittsburgh, PA (US);
Victor M. DiNardo, Monroeville, PA (US);
Assignee:
Sunoco Inc (R&M), Philadelphia, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K 1/504 ; C09K 1/532 ;
U.S. Cl.
CPC ...
C09K 1/504 ; C09K 1/532 ;
Abstract
The present invention is a stabilizing system for improving the melt viscosity of polyolefin resin during fiber processing. The addition of a liquid phosphite melt processing stabilizer to polypropylene homopolymer powder improves processing stability during spinning. The present invention covers spraying the liquid phosphite onto the powder along with octadecyl 3,5-di-tert-butyl-4-hydroxyhydrocinnamate which is applied via mineral oil solution in a steamer.