Process for dissolving polymeric material

Details Process for dissolving polymeric material Process for dissolving polymeric material

1983-08-02

1985-08-27

Jenkins, Robert W.

Agitating

Having specified feed means

Predetermined mixing ratio

366177, 366182, 366192, 366339, 422278, 422901, B01F 500

Patent

active

045375135

ABSTRACT:
A dispersion of polymeric particles in a non-aqueous liquid is mixed with water with sufficient agitation to initiate substantial dissolution of the particles into water and is substantially homogeneously dispersed into the water substantially immediately, for instance in less than 50 milliseconds from the initiation of substantial dissolution. Preferred apparatus is an orifice mixer having a mixing chamber 41 leading to an orifice 51 and supplied by an inlet 46 for dispersion, the inlet terminating in a valve 47 and an orifice 44, and an inlet 45 for water. The effective outlet area of the orifice 51 is adjusted by an eccentrically mounted aperture plate 52 and there is a shear helix 57.

REFERENCES:
patent: 3468322 (1969-09-01), Katzer
patent: 3606093 (1971-09-01), Morse et al.
patent: 4168018 (1979-09-01), Zahaykevich
patent: 4189795 (1980-02-01), Conti et al.

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