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:
May. 28, 2019
Filed:
Feb. 04, 2015
Dupont Teijin Films U.s. Limited Partnership, Chester, VA (US);
Debra S. Strickland, Richmond, VA (US);
Julian Neal Robinson, Easby, GB;
Jackie H. Symonds, North Yorkshire, GB;
Cornell Chappell, Jr., Petersburg, VA (US);
DUPONT TEIJIN FILMS U.S. LIMITED PARTNERSHIP, Chester, VA (US);
Abstract
An antistatic polyester film includes a self-supporting polyester substrate film bearing on at least one surface thereof an antistatic layer including a) one or more antistatic polymers comprising repeat units according to formula (I) wherein Rand Rare each independently H or CH, Ris an alkylene group having a carbon number in a range from 2 to 10, Rand Rare each independently a saturated hydrocarbon group having a carbon number in a range from 1 to 5, Ris an alkylene group having a carbon number in a range from 2 to 5, n is an integer in a range from 0 to 40, m is an integer in a range from 1 to 40, and Y″ is a halogen ion, nitrate ion, sulfate ion, alkylsulfate ion, sulfonate ion, alkylsulfonate ion or dihydrogen phosphate ion; b) one or more nonpolymeric cationic antistatic agents; and c) one or more crosslinkers.