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:
Aug. 23, 1994
Filed:
Jun. 04, 1993
Applicant:
Inventors:
Curtis P Smith, Cheshire, CT (US);
James M O'Connor, Branford, CT (US);
Assignee:
Olin Corporation, Cheshire, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G / ;
U.S. Cl.
CPC ...
528 61 ; 528 62 ; 528 63 ; 528 64 ; 528 76 ; 2641761 ; 2641 / ; 26421124 ;
Abstract
This invention relates to the production of spandex fibers made from segmented polyurethane(urea)s which are prepared from low unsaturation-containing polyols made by polymerizing alkylene oxides in the presence of a double metal cyanide complex catalyst. With the low unsaturation-containing polyols, spandex fibers can be prepared that have better physical properties than fibers prepared with PTMEG polyols.