Molecularly orientating plastics material

Details Molecularly orientating plastics material Molecularly orientating plastics material

1983-10-03

1986-05-20

Ozaja, Donald

Plastic and nonmetallic article shaping or treating: processes

With severing, removing material from preform mechanically,...

Making hole or aperture in article

264284, 2642888, 2642902, 264DIG81, B29C 5512

Patent

active

045900299

ABSTRACT:
An integral plastics material starting sheet has a square or rectangular pattern of holes defining strand-forming zones. The strand-forming zones are formed with depressions with the sheet at a low or ambient temperature. The sheet is then stretched to form the strand-forming into orientated strands.

REFERENCES:
patent: 3328505 (1967-06-01), Spencer
patent: 3386876 (1968-06-01), Wyckoff
patent: 3441638 (1969-04-01), Patchell et al.
patent: 3616154 (1971-10-01), Dow et al.
patent: 3900550 (1975-09-01), Oliver et al.
patent: 4280978 (1981-07-01), Dannheim et al.
patent: 4374798 (1983-02-01), Mercer

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