Process for manufacturing heat-shrinkable polyethylene film

Details Process for manufacturing heat-shrinkable polyethylene film Process for manufacturing heat-shrinkable polyethylene film

1994-09-06

1999-05-18

Wilson, Donald R.

Stock material or miscellaneous articles

Hollow or container type article

Shrinkable or shrunk

428910, 525240, 5263481, B29C55/28

Patent

active

059049642

ABSTRACT:
Linear low density copolymer of ethylene/1-hexene is made processible into heat shrinkable film by a continuous process starting with the extrusion of the copolymer as a film. The production rate of heat shrinkable film made from linear low density copolymer of ethylene/1-octene-can be increased by the step of blending a minor proportion of highly branched low density polyethylene with either copolymer prior to extrusion.

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patent: 4457960 (1984-07-01), Newsome
patent: 4597920 (1986-07-01), Golike
patent: 4760116 (1988-07-01), Roberts
patent: 4820557 (1989-04-01), Warren
patent: 5091228 (1992-02-01), Fujii et al.
patent: 5112696 (1992-05-01), Roberts

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