Heat shrinkable film and process for preparing the same

Details Heat shrinkable film and process for preparing the same Heat shrinkable film and process for preparing the same

1980-08-11

1982-10-19

Thurlow, Jeffery R.

Plastic and nonmetallic article shaping or treating: processes

Direct application of fluid pressure differential to...

Production of continuous or running length

264562, 264564, 264565, 264567, 264230, 2642358, B29D 724

Patent

active

043549977

ABSTRACT:
A process for simultaneously, biaxially orienting tubular ethylene polymer film by expansion and extension of the tube under particular conditions for heating the expanding tube, to give a heat shrinkable film. The heat shrinkable film has excellent heat shrinkability, shrinkage stress, transparency, heat sealability and impact resistance, and is very suited for use in shrink packaging.

REFERENCES:
patent: 3022543 (1962-02-01), Baird et al.
patent: 3383445 (1968-05-01), Gebler et al.
patent: 3465072 (1969-09-01), Gregorian
patent: 3551540 (1970-12-01), Pellicciari et al.
patent: 3891737 (1975-06-01), Marsh et al.

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