US 6,635,356 B2 · Packaging polyester film

Abstract

The present invention relates to a polyester film for medicine wrapper or powder food wrapper having a surface resistivity of not more than 5×1012 Ω/cm2.

Claims21

Dependent claims

A packaging polyester film having a surface resistivity of not more than 5×1012 Ω/cm2 under an atmosphere of 23° C. and 50% RH, and a wetting index of not less than 53 mN/m.

Dependencies are inferred from the claim text.

Facts

Application

09/735,376Filed 12 Dec 2000

Priority

JP 11-35408914 Dec 1999

Published

US 2002/0168493 A114 Nov 2002

Granted

21 Oct 2003

Term ends

Not estimatedThe source records don’t support an estimate.

Classification12 codes

B32B 27/36
Layered products comprising a layer of synthetic resin: comprising polyesters
B32B 27/08
As the main or only constituent of a layer, which is next to another layer of the same or of a different material: of synthetic resin
B32B 27/18
Layered products comprising a layer of synthetic resin: characterised by the use of special additives
C08J 5/18
Manufacture of articles or shaped materials containing macromolecular substances: manufacture of films or sheets

Abstract

The present invention relates to a polyester film for medicine wrapper or powder food wrapper having a surface resistivity of not more than 5×1012 Ω/cm2.

Packaging polyester film

Life of this patent

Abstract

Claims21

Packaging polyester film

Life of this patent

Abstract

Claims21