Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Treating polymer containing material or treating a solid...
Patent
1982-02-23
1984-05-01
Michl, Paul R.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Treating polymer containing material or treating a solid...
523352, 528487, C08F 622
Patent
active
044463090
ABSTRACT:
A method for continuously coagulating a rubbery polymer latex to obtain a polymer solid, characterized in that into a coagulator composed of (a) a cylindrical body having at one end a nozzle for feeding rubbery polymer latex and a nozzle for feeding coagulant solution, and having at the other end a discharging nozzle, (b) a stirrer mounted rotatably along the central axis of the cylindrical body, said stirrer having several stages of agitating blades, and (c) stationary blades fixed to the wall of the cylindrical body at the spaces between the stages of agitating blades, are continuously fed the rubbery polymer latex and a coagulant solution through the above-mentioned respective nozzles so as to collide against each other, and stirred during their movement from the one end of the coagulator to the other end to coagulate the latex. By this method, there can be obtained molded porous polymer crumbs having an intended size.
REFERENCES:
patent: 2459748 (1949-01-01), Johnson
patent: 2647103 (1953-07-01), Griffith
patent: 3245970 (1966-04-01), Drayer
patent: 4103074 (1978-07-01), Hertel et al.
patent: 4190721 (1980-02-01), Hertel
Ito Mamoru
Jiroumaru Takashi
Japan Synthetic Rubber Co. Ltd.
Michl Paul R.
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