Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...
Patent
1996-08-02
1998-12-08
Wu, David W.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Processes of preparing a desired or intentional composition...
524161, 524318, 526318, 526335, C08J 303
Patent
active
058470301
ABSTRACT:
A process for the preparation of polymer latex particles by conducting a pre-reaction emulsification with monomer, polar comonomer, water, surfactant, chain transfer agent, and initiator; and which pre-reaction emulsification is effected at a low temperature of from about 3.degree. C. to about 35.degree. C., for example, and thereafter, effecting emulsion polymerization by heating the aforementioned emulsified mixture in a reactor at a temperature of from about 25.degree. C. to about 125.degree. C. The aforementioned reactor contents are retained at this temperature, that is 25.degree. C. to 125.degree. C. for an effective time period. Thereafter, the reaction mixture is cooled.
REFERENCES:
patent: 3673280 (1972-06-01), Minton et al.
patent: 5216065 (1993-06-01), Colyer et al.
patent: 5278020 (1994-01-01), Grushkin et al.
patent: 5444140 (1995-08-01), Paine et al.
Kmiecik-Lawrynowicz Grazyna E.
Mahabadi Hadi K.
Ng T. Hwee
Palazzo E. O.
Wu David W.
Xerox Corporation
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