Process for producing polymers by free radical substance...

Details Process for producing polymers by free radical substance... Process for producing polymers by free radical substance...

C - Chemistry, Metallurgy

08

F

402/305

C08F 220/12 (2006.01) C08F 220/10 (2006.01)

Patent

CA 1129592

1286/US 1460/fdl ABSTRACT OF THE DISCLOSURE A process for the preparation of polymers by free- radical,bulk polymerization comprising charging a reaction vessel with from about 5 to 15 percent by weight of an alpha, beta-unsaturated monomer which does not, under the conditions of the reaction, undergo free-radical polymerization, e.g., an alkyl ester of fumaric or maleic acid; thereafter adding to the reaction vessel from about 95 to 85 percent by weight of an acrylic monomer which, under the conditions of the re- action, undergoes free-radical polymerization in bulk form, blended with a free-radical initiator and controlling said addition in order that the acrylic monomer is present in said reaction kettle in an amount of less than about 20 percent, and preferably less than about 5 percent, during the course of the reaction. The process proceeds without excessive exothermy, permitting the complete polymerization in a syn- thetic resin reactor. - 2 -

315029

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