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. 15, 1992
Filed:
Feb. 06, 1992
Applicant:
Inventor:
Perry H Lin, Seaford, DE (US);
Assignee:
E. I. Du Pont de Nemours and Company, Wilmington, DE (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D02G / ;
U.S. Cl.
CPC ...
428 97 ; 1394 / ; 1394 / ; 428 85 ;
Abstract
A process wherein freshly-spun, undrawn, nonconductive filaments are combined with one or more spin-oriented, conductive filaments having a nonconductive component made from a major portion of nonconductive, fiber-forming polymeric material and a minor amount of polystyrene, the combined fibers being drawn and co-bulked to produce an anti-static yarn. The conductive filaments used in this process have higher elongations to break, and carpets tufted from the yarns of the process show improved anti-static properties.