Heat-shrinkable polyester film roll

Details Heat-shrinkable polyester film roll Heat-shrinkable polyester film roll

2005-10-25

2005-10-25

Dye, Rena (Department: 1774)

Stock material or miscellaneous articles

Hollow or container type article

Shrinkable or shrunk

C428S035100, C428S212000, C428S213000, C428S220000, C428S480000, C428S481000

Reexamination Certificate

active

06958178

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 0.70×108Ω·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.in-line-formulae description="In-line Formulae" end="lead"?Thickness distribution width=(Maximum thickness−Minimum thickness)/Average thickness×100in-line-formulae description="In-line Formulae" end="tail"?Container-wrapping films excellent in processability and printability can be produced from the heat-shrinkable polyester film rolls in high yield.

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Notice of Reasons for Rejection dated Aug. 3, 2004 for Japanese Patent Application No. 2001-300424 filed Jul. 27, 2004 (with English translation).

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