Method for preparing conjugated diene polymer

Details Method for preparing conjugated diene polymer Method for preparing conjugated diene polymer

1997-11-20

2000-10-10

Sanders, Kriellion

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526185, 526189, C08F 452

Patent

active

061302996

ABSTRACT:
A method for preparing a conjugated diene polymer characterized by polymerizing a conjugated diene in vapor phase in the presence of an inorganic filler used as a rubber reinforcement agent and a catalyst which comprises (a) a compound containing a rare earth element of an atomic number of from 57 to 71 in the Periodic Table or a compound obtained by the reaction of this rare earth element-containing compound and a Lewis base, (b) an organic aluminum compound of the formula AlR.sup.1 R.sup.2 R.sup.3 or an almoxane, and (c) a halogen-containing compound. The vapor phase polymerization ensures easy control of the molecular weight of the polymer better dispersion of a rubber enforcement agent, and provides a rubber composition with improved rupture characteristics and abrasion resistance.

REFERENCES:
patent: 5731381 (1998-03-01), Apecetche et al.

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2257578