Method of making copolymers containing olefinic type monomers

Details Method of making copolymers containing olefinic type monomers Method of making copolymers containing olefinic type monomers

2008-01-29

2008-01-29

Wu, David W. (Department: 1713)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Polymers from only ethylenic monomers or processes of...

C526S264000, C526S303100, C526S317100, C526S320000, C526S329000, C526S332000

Reexamination Certificate

active

07323529

ABSTRACT:
Copolymers containing residues of at least one olefinic monomer and a method of making such copolymers including the steps of:(a) providing a pressurized stirred tank;(b) feeding monomer compositions to one or more stirred tank reactors, where at least one monomer composition includes one or more monomers according to structure (I):where R1is linear or branched C1to C4alkyl and R2is selected from methyl, linear, cyclic or branched C1to C20alkyl, alkenyl, aryl, alkaryl and aralkyl;(c) feeding an initiator composition to the STR;(d) maintaining in the STR hydraulically full;(e) maintaining the monomer compositions in (b) and the initiator compositions in (c) in the STR for a residence time sufficient to effect conversion of the monomers to a copolymer composition; and(f) discharging the copolymer composition.

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