Method for extruding thermoplastic polymers

Details Method for extruding thermoplastic polymers Method for extruding thermoplastic polymers

1974-04-18

1978-11-28

Woo, Jay H.

Plastic and nonmetallic article shaping or treating: processes

Vacuum treatment of work

To degas or prevent gas entrapment

264176R, 264211, D02G 120

Patent

active

041276353

ABSTRACT:
Profiles may be extruded directly from powdered ABS or other similar thermoplastic materials without pelletizing the feed material, by compounding under dry air flush conditions; maintaining dry air atmosphere conditions on the compounded materials until charged into the extruder; and providing vacuum venting in the decompression zone of the extruder, with optional condensation inducement and entrapment in the vent. Method and apparatus are disclosed.

REFERENCES:
patent: 2110785 (1938-03-01), Baxter
patent: 3035306 (1962-05-01), Rossiter
patent: 3036335 (1962-05-01), Heston et al.
patent: 3082816 (1963-03-01), Skidmore
patent: 3156009 (1969-11-01), Alsys
patent: 3163888 (1965-01-01), Shattuck
patent: 3207205 (1965-09-01), Briskin et al.
patent: 3290268 (1966-12-01), Scofield
patent: 3344218 (1967-09-01), Chapra et al.
patent: 3345445 (1967-10-01), Siclari et al.
patent: 3373502 (1968-03-01), Hendry
patent: 3391232 (1968-07-01), Jackson
patent: 3451462 (1969-06-01), Szabo et al.
patent: 3496133 (1970-02-01), Hoffman
patent: 3579728 (1971-05-01), Reid et al.
patent: 3642752 (1972-02-01), Sutter
patent: 3646187 (1972-02-01), Milam et al.
patent: 3742093 (1971-06-01), Skidmore
patent: 3799234 (1974-03-01), Skidmore
patent: 3848041 (1974-11-01), Adomaitis
patent: 3917507 (1975-11-01), Skidmore
patent: 3920604 (1975-11-01), Berg et al.
patent: 3969314 (1976-07-01), Grigull
patent: 3972849 (1976-08-01), Bruenemann et al.

Affiliated with

Also associated with

Rating

Method for extruding thermoplastic polymers does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for extruding thermoplastic polymers, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for extruding thermoplastic polymers will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-977823