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

1982-02-19

1984-07-31

Michl, Paul R.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Polymers from only ethylenic monomers or processes of...

C08J 518

Patent

active

044631537

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 skrinkable 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
patent: 3299194 (1967-01-01), Golike
patent: 3383445 (1968-05-01), Gebler
patent: 3465072 (1969-09-01), Gregorian
patent: 3509116 (1970-04-01), Cote
patent: 3891737 (1975-06-01), Marsh
patent: 4192935 (1980-03-01), Lovell
patent: 4205021 (1980-05-01), Morita
patent: 4226905 (1980-10-01), Harbourne
patent: 4258166 (1981-03-01), Canterino
patent: 4311752 (1982-01-01), Diedrich

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