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:
Dec. 04, 2007
Filed:
Feb. 14, 2003
Masatoshi Hashimoto, Inuyama, JP;
Norimi Tabota, Inuyama, JP;
Hiroshi Nagano, Iwakura, JP;
Toyo Boseki Kabushiki Kaisha, Osaka-shi, JP;
Abstract
An object of the present invention is to provide a heat-shrinkable polyester film having a good light blocking property even when the label is not auxiliary processed by printing. The present invention provides a heat-shrinkable polyester film mainly made of a polyester resin, wherein the film has a total luminous transmittance of not more than 40%, a haze of not less than 90%, a sample film has a heat shrinkage percentage of not less than 50% in the maximum shrinkage direction and a heat shrinkage percentage of not more than 10% in a direction orthogonal to the maximum shrinkage direction, the sample film being in a size of 10 cm×10 cm cut off from the film and obtained by immerse in hot water at 95° C. for 10 seconds, subsequently in water at 25° C. for 10 seconds, and withdrawing.