COPOLYMERS WITH NOVEL SEQUENCE DISTRIBUTIONS Russian patent published in 2009 - IPC C08F210/10 C08F210/14 C08F236/04 C08F2/06 C08F4/14 C08F4/16 

Abstract RU 2345095 C2

FIELD: chemistry.

SUBSTANCE: invention relates to isoolefin and multiolefin copolymers, copolymer possessing copolymer sequence distribution which is determined by parameter m of copolymer sequence distribution. Method of copolymer obtaining includes contacting of isoolefin, preferably isobutylene, and multiolefin, representing conjugated diene, isoprene, one or more Lewis acids, one or more initiators and thinner that includes one or several fluorohydrocarbons (FHC). As fluorohydrocarbons, one or several fluorohydrocarbons represented by general formula CxHyFz are selected.

EFFECT: reduction of particle agglomeration and reactor contamination without damage to technological parameters, conditions or components and/or without damage to productivity/throughput and/or ability to form highly-molecular polymers.

27 cl, 152 ex, 26 tbl, 4 dwg

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RU 2 345 095 C2

Authors

Shaffer Timoti D.

Chun Dejvid I.

Dates

2009-01-27Published

2003-12-19Filed