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. 03, 2015
Filed:
Oct. 05, 2012
Applicant:
E I Du Pont DE Nemours and Company, Wilmington, DE (US);
Inventors:
John P O'Brien, Oxford, PA (US);
Kathleen Opper, Wilmington, DE (US);
Assignee:
E I DU PONT DE NEMOURS AND COMPANY, Wilmington, DE (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08L 5/00 (2006.01); D01F 9/00 (2006.01); C08K 5/357 (2006.01); C08B 37/00 (2006.01); C08B 37/02 (2006.01); C08L 5/02 (2006.01); D01D 5/06 (2006.01);
U.S. Cl.
CPC ...
D01F 9/00 (2013.01); C08B 37/0009 (2013.01); C08B 37/0021 (2013.01); C08K 5/357 (2013.01); C08L 5/00 (2013.01); C08L 5/02 (2013.01); D01D 5/06 (2013.01);
Abstract
This invention pertains to a novel process for preparing fibers from poly(α(1→3) glucan). The fibers prepared according to the invention, have 'cotton-like' properties, are useful in textile applications, and can be produced as continuous filaments on a year-round basis. The process comprises solution spinning from a novel solution of poly(α(1→3) glucan) in a mixture of water and N-methylmorpholine-N-oxide followed by coagulation in a liquid coagulant that comprises a liquid that is not water.