Process for producing highly oriented polyethylene material

Details Process for producing highly oriented polyethylene material Process for producing highly oriented polyethylene material

1989-12-20

1991-03-26

Theisen, Mary Lynn F.

Plastic and nonmetallic article shaping or treating: processes

Forming articles by uniting randomly associated particles

With reshaping or surface embossing of formed article

264120, 264126, B29C 4322, B29C 4700

Patent

active

050027140

ABSTRACT:
A process for the production of polyethylene materials oriented at a high level is disclosed in which a selected ethylene polymer as produced is extruded or rolled at a temperature lower than its melting point and subsequently subjected to stretching. The polymer is from 5 to 50 dl/g at 135.degree. C. in decalin in intrinsic viscosity and smaller than 60 .ANG. in crystal size on a plane (110) in the diffraction pattern.

REFERENCES:
patent: 4879076 (1989-11-01), Sano et al.

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