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:
May. 26, 2009
Filed:
Aug. 22, 2007
Applicants:
Reiyao Zhu, Moseley, VA (US);
Debbie Guckert, Chester, VA (US);
Vlodek Gabara, Richmond, VA (US);
Inventors:
Assignee:
E.I. du Pont de Nemours and Company, Wilmington, DE (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D02G 3/00 (2006.01); B27N 9/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention concerns a flame-resistant spun staple yarns and fabrics and garments comprising these yarns and methods of making the same. The yarns have 25 to 80 parts by weight of a polymeric staple fiber containing a polymer or copolymer derived from a monomer selected from the group consisting of 4,4 'diaminodiphenyl sulfone, 3,3′diaminodiphenyl sulfone, and mixtures thereof; and 20 to 75 parts by weight of a modacrylic fiber, based on 100 parts by weight of the polymeric fiber and the modacrylic fiber in the yarn.