System and process for simultaneously orienting the films of a f

Plastic and nonmetallic article shaping or treating: processes – Carbonizing to form article – Agglomeration or accretion

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156229, 1562722, 15624417, 15624424, 2642884, 2642902, B29H 526, B29C 1902, B29C 3100, B32B 3100

Patent

active

044723300

ABSTRACT:
A method and system are disclosed for orienting a multilayer polymeric film structure by differentially heating different film layers thereof by dielectric heating and then molecular orienting the film layers at their respective optimal orientation temperatures.

REFERENCES:
patent: 4022646 (1977-05-01), Casey
patent: 4274900 (1981-06-01), Mueller et al.
patent: 4311660 (1982-01-01), Barham et al.
patent: 4373002 (1983-02-01), Petersen

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