Process for forming film from low strain hardening polymers

Details Process for forming film from low strain hardening polymers Process for forming film from low strain hardening polymers

1982-07-02

1983-11-15

Thurlow, Jeffery R.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

264564, 264566, 264569, 425 72R, 4253261, 526124, 526125, 526126, B29D 722, C08F 234

Patent

active

044157118

ABSTRACT:
A process is disclosed for forming blown film of a low strain hardening polymer, such as a low pressure polymerized-low density ethylene copolymer, including an improved film bubble expanding technique which permits high production rates to be achieved with good film bubble stability. Advantageously, most of the films produced by the process have a relatively high degree of film clarity.

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"Unusual Orientation Phenomena in Polyethylene Interpreted in Terms of Morphology"-J. Polymer Science, vol. XV, pp. 31-49 (1955).

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