Heat-shrinkable polyester films

Details Heat-shrinkable polyester films Heat-shrinkable polyester films

2007-12-04

2007-12-04

Vo, Hai (Department: 1771)

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Composite having voids in a component

C428S319300, C428S319700, C428S317900, C428S480000, C428S036500, C428S036910, C428S913000

Reexamination Certificate

active

10366697

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.

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Notice of Reason for Refusal dated Nov. 16, 2006, directed to counterpart JP application No. 2002-037314 (6 pages).
Notice of Reasons for Refusal dated May 31, 2007, directed to counterpart JP application No. 2002-115249 (6 pages).

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