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:
Mar. 22, 2016
Filed:
Nov. 16, 2011
Applicants:
Marc-andre Lebel, Boxborough, MA (US);
Lawino Kagumba, Cambridge, MA (US);
Pin Go, Groton, MA (US);
Inventors:
Assignee:
FRX Polymers, Inc., Chelmsford, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G 18/38 (2006.01); C08L 67/02 (2006.01); A47G 9/02 (2006.01); A47G 9/10 (2006.01); D01F 1/02 (2006.01); D01F 1/07 (2006.01); D01F 6/62 (2006.01);
U.S. Cl.
CPC ...
C08L 67/02 (2013.01); A47G 9/0207 (2013.01); A47G 9/0238 (2013.01); A47G 9/10 (2013.01); D01F 1/02 (2013.01); D01F 1/07 (2013.01); D01F 6/62 (2013.01); Y10T 428/1397 (2015.01); Y10T 428/249921 (2015.04); Y10T 428/298 (2015.01); Y10T 442/20 (2015.04); Y10T 442/3984 (2015.04); Y10T 442/696 (2015.04);
Abstract
The invention relates to the use of polyphosphonates, copoly(phosphonate ester)s, copoly(phosphonate carbonate)s, and their respective oligomers, as flame retardant additives for polyester fibers to impart fire resistance while maintaining or improving processing characteristics for melt spinning fibers.