Patent Number: 7,785,680

Title: Multilayer card

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) a first ink-receptive layer on at least one surface of the substrate, (iii) a cover layer on the surface of the ink-receptive layer and/or surface of the substrate and (iv) a second ink-receptive heat-sealable layer comprising a polyester resin on a second 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.

Inventors: Brennan; William James (Middlesbrough, GB), Rhoades; Gary Victor (Stockton-On-Tees, GB), Lawrence; Paul David (Middlesbrough, GB)

Assignee: Dupont Teijin Films U.S. Limited Partnership

International Classification: B41M 5/40 (20060101); B41M 5/00 (20060101); G03G 7/00 (20060101); B44C 1/17 (20060101)

Expiration Date: 8/31/12018