Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – At least one aryl ring which is part of a fused or bridged...
Reexamination Certificate
2011-08-30
2011-08-30
Bernshteyn, Michael M (Department: 1762)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
At least one aryl ring which is part of a fused or bridged...
C524S457000, C524S475000, C524S556000
Reexamination Certificate
active
08008396
ABSTRACT:
There is provided a process of emulsion polymerization comprising(a) adding a reactive mixture to a reaction vessel, said reactive mixture comprising water, one or more emulsifier, one or more monomer, and one or more initiator,(b) providing conditions in which said reactive mixture undergoes emulsion polymerization, and(c) passing some of the contents of said reaction vessel through a recirculating loop comprising a low-shear pump and a plate and frame heat exchanger having gap width of 6 to 18 mm,wherein more than 50% of the heat produced by said emulsion polymerization is removed from the contents of said reaction vessel by said plate and frame heat exchanger.
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Feng, et al., “Industrial Polymerization Apparatus (IV). Emulsion Polymerization Reactors (Part 1)”, China Synthetic Rubber Industry, v. 17, No. 5, pp. 299-303, 1994.
Rohrbach William Douglas
Zimmerman, Jr. David Lewis
Bernshteyn Michael M
Hemenway Carl P.
Rohm and Haas Company
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