Catalyst system and process for polymerizing conjugated dienes

Details Catalyst system and process for polymerizing conjugated dienes Catalyst system and process for polymerizing conjugated dienes

C - Chemistry, Metallurgy

08

F

252/117, 252/123

C08F 36/04 (2006.01) C08F 4/48 (2006.01)

Patent

CA 1236824

-32- Title: CATALYST SYSTEM AND PROCESS FOR POLYMERIZING CONJUGATED DIENES ABSTRACT Conjugated dienes, in particular 1,3-conju- gated dienes, can be polymerized or copolymerized using the catalyst system of this invention to polymers wherein the amount of 1,2-structure contained in the polymer is increased, and polymers can be prepared containing varying amounts of 1,2-structure as desired. Such desirable results can be obtained in accordance with the process of the present invention for polymerizing conjugated diene nonomers which comprises the use of a catalyst system which comprises (a) at least one anionic initiator based on lithium, and (b) a modifier composition comprising at least one cyclic acetal of a glyoxal. Image wherein R and R' are each independently hydrogen, alkyl or aryl groups, and each A is independently an alkylene or an oxyalkylene group. In another embodiment, the catalyst system also contains at least one co-initiator selected from the group consisting of organomagnesium compounds, organoaluminum compounds, or mixtures thereof.

476620

Affiliated with

Also associated with

Rating

Catalyst system and process for polymerizing conjugated dienes does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Catalyst system and process for polymerizing conjugated dienes, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Catalyst system and process for polymerizing conjugated dienes will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1292624