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:
Oct. 25, 2005
Filed:
Jul. 30, 2002
Satoshi Hayakawa, Inuyama, JP;
Norimi Tabota, Inuyama, JP;
Yoshinori Takegawa, Ohtsu, JP;
Katsuya Ito, Ohtsu, JP;
Shigeru Komeda, Osaka, JP;
Katsuhiko Nose, Osaka, JP;
Satoshi Hayakawa, Inuyama, JP;
Norimi Tabota, Inuyama, JP;
Yoshinori Takegawa, Ohtsu, JP;
Katsuya Ito, Ohtsu, JP;
Shigeru Komeda, Osaka, JP;
Katsuhiko Nose, Osaka, JP;
Toyo Boseki Kabushiki Kaisha, Osaka, JP;
Abstract
The heat-shrinkable polyester film rolls according to the present invention is characterized in that the film rolls have (1) a heat shrinkage percentage at 85° C. in the maximum shrinkage direction of 20% or more; (2) a melt resistivity at a temperature of 275° C. of 0.70×10Ω·cm or less; (3) when samples thereof are cut off at an interval of about 100 m and the fluctuation in thickness in the maximum shrinkage direction is measured, a thickness distribution width represented by the following formula of respective samples of 7% or less.Thickness distribution width=(Maximum thickness−Minimum thickness)/Average thickness×100 Container-wrapping films excellent in processability and printability can be produced from the heat-shrinkable polyester film rolls in high yield.