Injection of additives into liquid streams

Details Injection of additives into liquid streams Injection of additives into liquid streams

1973-10-30

1977-04-05

Woo, Jay H.

Plastic and nonmetallic article shaping or treating: processes

Outside of mold sintering or vitrifying of shaped inorganic...

Including plural heating steps

259 96, 264349, 418 15, 418206, D01F 102

Patent

active

040158284

ABSTRACT:
A conventional gear pump is modified by the incorporation of means to permit a liquid additive to be injected into the gear pump at the point at which the gear wheels separate. At this point the pressure is at or below atmospheric pressure and, as a result, the additive can be added uniformly and independently of the polymer flow and pressure.

REFERENCES:
patent: 2116380 (1938-05-01), Bauer
patent: 2936717 (1960-05-01), Kalle
patent: 3149083 (1964-09-01), Gmitter
patent: 3349713 (1967-10-01), Fassbender
patent: 3368799 (1968-02-01), Sluijters
patent: 3552603 (1971-01-01), Hrivak et al.
patent: 3558282 (1971-01-01), Evans

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