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:
Jun. 02, 1992
Filed:
Jul. 11, 1991
Lidia T Calcaterra, Arlington Heights, IL (US);
Mathias P Koljack, Arlington Heights, IL (US);
Qamardin Farishta, Bensenville, IL (US);
Michael G Koehler, Chicago, IL (US);
William B Bedwell, Chicago, IL (US);
Dale A Hangey, Midlothian, VA (US);
George D Green, Park Ridge, IL (US);
Allied-Signal Inc., Morristown, NJ (US);
Abstract
The present invention provides methods and compositions to impart coffee stain resistance to polyamide textile substrate such as carpets. The compositions comprise either (i) a copolymer selected from the group consisting of a hydrolyzed aromatic-containing vinyl ether maleic anhydride copolymer, a half ester of an aromatic-containing vinyl ether maleic anhydride copolymer, and mixtures thereof, or (ii) an aromatic-containing acrylate copolymerized with an acid selected from the group consisting of acrylic acid and maleic acid. The coffee stain-resistant polyamide textile substrates made are also part of the invention.