Amine containing catalyst system and methods of use thereof

Details Amine containing catalyst system and methods of use thereof Amine containing catalyst system and methods of use thereof

2008-01-22

2008-01-22

Teskin, Fred (Department: 1713)

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

C526S176000, C526S204000, C502S153000, C502S154000, C502S155000

Reexamination Certificate

active

11466920

ABSTRACT:
The present invention is directed to an amine containing catalyst system for synthesizing rubbery polymers, such as polybutadiene rubber and styrene-butadiene rubber, having a high trans microstructure. The catalyst system, in one embodiment, includes (a) an organolithium compound, (b) a group IIa metal salt, (c) an organoaluminum compound, and (d) an amine compound which can be selected from (1) a heterocyclic aromatic compound which includes a ring structure with one or more nitrogen atoms as part of the ring; (2) a heterocyclic non-aromatic compound which includes a ring structure with two or more nitrogen atoms as part of the ring; (3) an aromatic compound including a ring structure substituted with at least one amine and at least one polar functionality containing group selected from a carboxyl group or a hydroxyl group; (4) a bicyclic chelating diamine compound; or (5) an aliphatic amine which includes a C5-C20alkyl group.

REFERENCES:
patent: 3903019 (1975-09-01), Hargis et al.
patent: 4555498 (1985-11-01), Kamienski
patent: 5086136 (1992-02-01), Takashima et al.
patent: 6046266 (2000-04-01), Sandstrom et al.
patent: 6103842 (2000-08-01), Halasa et al.
patent: 6627715 (2003-09-01), Halasa et al.
patent: 6889737 (2005-05-01), Weydert
patent: 2002/0045720 (2002-04-01), Halasa et al.
patent: 2005/0181935 (2005-08-01), Halasa et al.

Affiliated with

Also associated with

Rating

Amine containing catalyst system and methods of use thereof does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Amine containing catalyst system and methods of use thereof, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Amine containing catalyst system and methods of use thereof will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3925191