Method of coagulating and isolating graft copolymers from latice

Details Method of coagulating and isolating graft copolymers from latice Method of coagulating and isolating graft copolymers from latice

1998-06-25

2000-12-05

Seidleck, James J.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Treating polymer containing material or treating a solid...

528502R, C08F 618

Patent

active

061568759

ABSTRACT:
Graft copolymer particles comprising an elastomeric base polymer such as polybutadiene and grafted chains of a thermoplastic, non-elastomeric polymer such as styrene-acrylonitrile are coagulated for isolation from aqueous emulsion by subjecting the emulsion to mechanical shear in the absence of chemical coagulants at a temperature greater than or equal to the glass transition temperature of the thermoplastic, non-elastomeric portion of the copolymer.

REFERENCES:
patent: 4299952 (1981-11-01), Pingel et al.
patent: 4623678 (1986-11-01), Moore et al.
patent: 4668738 (1987-05-01), Lee et al.
patent: 5025044 (1991-06-01), Christell et al.
patent: 5698666 (1997-12-01), Burroway et al.

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