Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Treating polymer containing material or treating a solid...
Patent
1977-02-02
1978-08-15
Levin, Stanford M.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Treating polymer containing material or treating a solid...
23280, 159 2E, 425144, C08F 612, C08F 610
Patent
active
041074220
ABSTRACT:
By cooling the barrel of a devolatilizing extruder rather than by heating it, both the solvent removal rate and the polymer feed rate could be increased; furthermore, the power surging of the motor driving the extruder was largely reduced or even eliminated by the process of this invention.
REFERENCES:
patent: 3035306 (1962-05-01), Rossiter
patent: 3036056 (1962-05-01), Rion
patent: 3078511 (1963-02-01), Street
patent: 3078512 (1963-02-01), DeHaven
patent: 3476736 (1969-11-01), Kahre
patent: 3799234 (1971-02-01), Skidmore
Levin Stanford M.
Phillips Petroleum Company
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