Heat-shrinkable polyester film having excellent crystallinity

Details Heat-shrinkable polyester film having excellent crystallinity Heat-shrinkable polyester film having excellent crystallinity

2006-07-11

2006-07-11

Chen, Vivian (Department: 1773)

Stock material or miscellaneous articles

Hollow or container type article

Shrinkable or shrunk

C528S308000, C528S308600, C528S308700, C428S034900, C428S480000, C428S910000, C525S437000, C525S444000

Reexamination Certificate

active

07074467

ABSTRACT:
Disclosed herein is a heat-shrinkable co-polyester film containing terephthalic acid or dimethyl terephthalate as a dicarbonic acid component, and ethylene glycol, neopentyl glycol and propylene glycol as diol components, in which the co-polyester film has a crystallization temperature of 80–220° C., and a heat shrinkage (%) higher than 30% in at least one direction of longitudinal and transverse directions in 90° C. hot water. This film is suitable for use as various wrapping materials, such as covering, binding and casing materials. Particularly, this film is used to cover a cap, body and shoulder, etc. of various vessels and rod-shaped molded articles and thus to provide labeling, protection, binding or an improvement in product value. Also, this film can be used for multi-package.

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