Method of emulsion polymerization
AssigneeRohm and Haas Company
InventorsWilliam Douglas Rohrbach, David Lewis Zimmerman, Jr.
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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.
Claims6
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 the amount of said contents of said reaction vessel that is passed through said recirculating loop is 0.5% to 100% by volume based on the sum of total volumes of the material in said reaction vessel and the material in said recirculating loop,
- 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.
Dependencies are inferred from the claim text.