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. 29, 2011
Filed:
Dec. 19, 2007
Applicant:
Stephen Ernest Jacobson, Hockessin, DE;
Inventor:
Stephen Ernest Jacobson, Hockessin, DE;
Assignee:
E.I. duPont de Nemours and Company, Wilmington, DE (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B 27/34 (2006.01); B32B 27/02 (2006.01); D06M 15/263 (2006.01);
U.S. Cl.
CPC ...
Abstract
A polyamide substrate having deposited thereon a copolymer effective to impart resistance to staining by turmeric wherein said copolymer comprises polymer units derived from (a) at least one cyclic olefin having from 5 to 12 carbon atoms, and (b) maleic anhydride wherein the molar ratio of total cyclic olefin to maleic anhydride is between about 0.5 and 1.3, and a method for using the copolymer to impart stain resistance to a polyamide substrate.