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:
Nov. 08, 1994
Filed:
Apr. 02, 1993
Applicant:
Inventors:
Nathan E Houser, Afton, VA (US);
Willem Bakker, Waynesboro, VA (US);
Richard L Dreibelbis, Waynesboro, VA (US);
Assignee:
E. I. Du Pont de Nemours and Company, Wilmington, DE (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D01D / ; D01F / ;
U.S. Cl.
CPC ...
264205 ; 26421112 ;
Abstract
A process is provided for dry spinning a segmented polyurethaneurea at speeds as high as 900 meters/min. The process includes chain-extending an isocyanate-capped polyether glycol with a mixture of ethylenediamine and 1,2-diaminopropane, the 1,2-diaminopropane amounting to 8 to 17 mole % of the diamine mixture. The resultant spandex is particularly suited for use in women's hosiery.
Quick Actions:
Houser, Nathan. (1994). Process for dry spinning spandex (U.S. Patent No. 5362432). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5362432
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile