Patent ID: 6458437
Filing Date: 2002-10-01
Classification: C08J,C08L,Y10T

Abstract:
A heat-shrinkable polyester film having: a heat shrinkability of 30-60% after treatment in hot water at 70Â° C. for 5 seconds and of 65% or higher after treatment in hot water at 85Â° C. for 5 seconds, both in the main shrinkage direction, and of 10% or lower after treatment in hot water at 85Â° C. for 5 seconds in a direction perpendicular to the main shrinkage direction; a heat shrinkability after storage at 25Â° C. for one month of 25% or higher after treatment in hot water at 70Â° C. for 5 seconds in the main shrinkage direction; and a thickness distribution of 6% or lower.