Process for preparing non-oriented polyolefin film

Details Process for preparing non-oriented polyolefin film Process for preparing non-oriented polyolefin film

1981-06-24

1982-12-14

Hall, James R.

Plastic and nonmetallic article shaping or treating: processes

Forming articles by uniting randomly associated particles

With reshaping or surface embossing of formed article

264126, D04N 154

Patent

active

043637710

ABSTRACT:
A method for producing non-oriented film that comprises depositing high molecular weight polyolefin powder on a smooth non-adherent substrate, sintering the deposited powder, contacting the sintered powder with rollers at the sintering temperature at a pressure sufficient to effect densification of the polyolefin normal to the surface but insufficient to effect significant longitudinal flow of the polyolefin to form a void-free film, and stripping said film from said substrate.

REFERENCES:
patent: 3400186 (1968-09-01), Wiley
patent: 3975481 (1976-08-01), Baumgaertner

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