Production of copolymers of alpha-methyl-styrene

Details Production of copolymers of alpha-methyl-styrene Production of copolymers of alpha-methyl-styrene

C - Chemistry, Metallurgy

08

F

402/403, 402/418

C08F 212/06 (2006.01) C08F 2/06 (2006.01) C08F 212/12 (2006.01)

Patent

CA 1196148

ABSTRACT OF THE DISCLOSURE Copolymers of .alpha.-methylstyrene and other .alpha.-methylalkenyl aromatic monomers, particularly the copolymers of .alpha.-methylstyrene with styrene, which exhibit excellent homogeneity are produced with anionic catalyst in solution systems using intensive backmixing, recirculatory reactors by continuously changing a feed stream of the mixed monomers in which the ratio of reactive .alpha.-methylalkenylaromatic monomer to styrene or other alkenylaromatic monomer is kept in low relative proportions while the reaction mass in which the copolymer is being formed is maintained as an essentially homogeneous mixture.

422025

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