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. 19, 2007
Filed:
Jul. 22, 2004
William James Brennan, Cleveland, GB;
Gary Victor Rhoades, Middlesbrough, GB;
Paul David Lawrence, Cleveland, GB;
William James Brennan, Cleveland, GB;
Gary Victor Rhoades, Middlesbrough, GB;
Paul David Lawrence, Cleveland, GB;
DuPont Teijin Films U.S. Limited Partnership, Wilmington, DE (US);
Abstract
A multilayer card has (i) an opaque polyester film substrate () containing 0.2 to 30% by weight, relative to the total weight of the substrate, of at least one copolyesterether, (ii) an ink-receptive layer () on at least one surface of the substrate, and (iii) a cover layer () on the surface of the ink-receptive layer and/or surface of the substrate. The presence of the copolyesterether in the substrate reduces the tendency of the card to delaminate in use. Suitable for use, inter alia, in identification, magnetic, credit, pre-paid and smart cards.