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. 01, 1999
Filed:
Sep. 20, 1996
Shinichiro Okada, Sagamihara, JP;
Toshifumi Ishikawa, Sagamihara, JP;
Masayuki Fukuda, Sagamihara, JP;
Teijin Limited, Osaka, JP;
Abstract
An antistatic polyester film having formed on at least one side of a polyester film a coating layer which consists essentially of (a) 5 to 40% by weight of a phosphoric acid ester salt-based antistatic agent, (b) 1 to 20% by weight of a surfactant having an HLB value of 12 or less, (c) 40 to 90% by weight of at least one binder selected from acrylic copolymers and polyester copolymers, and (d) 3 to 25% by weight of fine particles having an average particle diameter of 10 to 500 nm and which has an extremely uniform surface. This film is excellent in anti-blocking properties at a high humidity and antistatic properties at a low humidity.