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:
Jul. 06, 2021
Filed:
May. 08, 2018
Dupont Teijin Films U.s. Limited Partnership, Wilmington, DE (US);
William J. Brennan, Middlesbrough, GB;
Felicity Child, Middlesbrough, GB;
DuPont Teijin Films U.S. Limited Partnership, Wilmington, DE (US);
Abstract
A multi-layer card comprising a polymeric inlay layer having a first surface and a second surface, further comprising a first multi-layer film which is disposed on the first surface of the polymeric inlay layer, and further comprising a first polymeric overlay layer which is disposed on said first multi-layer film, such that the layer order is polymeric inlay layer, first multi-layer film and first polymeric overlay layer, wherein said first multi-layer film comprises: (i) a polyester base layer (B) comprising a crystallisable polyester (P), and further comprising titanium dioxide in an amount of from about 1 to about 30 wt % by total weight of the base layer; (ii) a first heat-sealable copolyester layer (A1) disposed on a first surface of said polyester base layer; and (iii) optionally a second heat-sealable copolyester layer (A2) disposed on a second surface of said polyester base layer, wherein the copolyester (CP) of each of the first and optional second heat-sealable copolyester layers is independently selected from amorphous copolyesters (ACP) derived from an aliphatic diol and a cycloaliphatic diol and at least one aromatic dicarboxylic acid, and/or the polyester base layer (B) further comprises a copolyester (CP) in an amount of at least about 10% by weight based on the total weight of the base layer (B).