Process for producing conjugated diene polymer

Details Process for producing conjugated diene polymer Process for producing conjugated diene polymer

C - Chemistry, Metallurgy

08

F

402/446

C08F 36/04 (2006.01) C08F 4/52 (2006.01)

Patent

CA 1223396

ABSTRACT OF THE DISCLOSURE A process for producing a conjugated diene polymer, characterized by polymerizing at least one conjugated diene with a catalyst consisting of (A) a reaction product of a Lewis base and a carboxylate of a rare earth element of the lanthanum series represented by Ln(R1CO2)3 wherein Ln is a rare earth element of the lanthanum series having an atomic number of 57 to 71 and R1 is a hydrocarbon substituent having 1 to 20 carbon atoms, (B) an organic aluminum compound represented by AlR2R3R4 wherein R2, R3 and R4, which may be identical or different, represent hydrogn atoms or hydrocarbon substitutents having 1 to 8 carbon atoms, excluding the case where all of R2, R3 and R4 are hydrogen atoms at the same time, and (C) an (alkyl)aluminum halide represented by AlXnR53-n wherein X is Cl, Br, F or I; R5 is a hydrocarbon substitutent having 1 to 8 carbon atoms; and n has a value of 1, 1.5, 2 or 3, or consisting of these (A), (B) and (C) components and (D) a conjugated diene. A polymer obtained by said process has a high cis-1,4- configuration content and is excellent in physical properties of vulcanizate.

404790

Affiliated with

Also associated with

Rating

Process for producing conjugated diene polymer does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for producing conjugated diene polymer, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for producing conjugated diene polymer will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1240405