Method for the molecular orientation of plastic material

Details Method for the molecular orientation of plastic material Method for the molecular orientation of plastic material

1983-11-10

1989-09-05

Thurlow, Jeffery

Plastic and nonmetallic article shaping or treating: processes

Direct application of fluid pressure differential to...

Production of continuous or running length

264566, 264178R, 2642896, 425 66, 425 71, 4253261, B29C 5516

Patent

active

048636703

ABSTRACT:
A method for the molecular orientation of plastic material by expanding a tube of plastic material, includes introducing the tube into a container filled with heated liquid, preferably water of a temperature of 70.degree.-100.degree. C. The tube is expanded by introducing a pressurized liquid into the tube. An apparatus for carrying out the method and a plastic material are also disclosed.

REFERENCES:
patent: 2804642 (1957-09-01), Milne
patent: 2979777 (1961-04-01), Goldman
patent: 2987776 (1961-06-01), Miller
patent: 3090991 (1963-05-01), Hathaway
patent: 3121760 (1964-02-01), Kline
patent: 3260776 (1966-07-01), Lindstrom, Jr. et al.
patent: 3291876 (1966-12-01), Justus
patent: 3296344 (1967-01-01), Timmerman
patent: 3306963 (1967-02-01), Wisseroth
patent: 3466356 (1969-09-01), Carlson
patent: 3608019 (1971-09-01), Sato

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