Process for the continuous degradation of plastics

Details Process for the continuous degradation of plastics Process for the continuous degradation of plastics

1975-08-29

1977-09-27

Thurlow, Jeffery R.

Plastic and nonmetallic article shaping or treating: processes

Vacuum treatment of work

To degas or prevent gas entrapment

366 75, 366 78, 260 23, 260578, 264 37, 264176R, 264211, 264DIG69, 560 78, C07C 8714, B29H 1900

Patent

active

040512126

ABSTRACT:
The instant invention relates to a continuous process for the hydrolytic degradation of plastics wherein a hydrolyzable material is introduced with water into a screw machine, and is subjected therein to a temperature of 100 to 300.degree. C, and a pressure of 5 to 100 bars for 2 to 100 minutes. The invention also relates to an apparatus useful in conducting the process.

REFERENCES:
patent: 2838801 (1958-06-01), De Long et al.
patent: 3225094 (1965-12-01), Wolf
patent: 3229445 (1966-01-01), Kraft
patent: 3499952 (1970-03-01), Kolner et al.
patent: 3551943 (1971-01-01), Staton et al.
patent: 3703488 (1972-11-01), Morton
patent: 3917507 (1975-11-01), Skidmore
patent: 3954681 (1976-05-01), Castle
patent: 3959357 (1976-05-01), Tokushige et al.

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