Copolymers of conjugated dienes and aromatic vinyl compounds pre

Details Copolymers of conjugated dienes and aromatic vinyl compounds pre Copolymers of conjugated dienes and aromatic vinyl compounds pre

1994-12-08

1996-02-06

Teskin, Fred

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526 88, 526173, 526335, 526310, 526334, C08F21208, C08F21204, C08F 448

Patent

active

054896606

ABSTRACT:
A continuous process is described for preparing copolymer compositions of 1,3-conjugated dienes and aromatic vinyl compounds having a weight average molecular weight of greater than about 100,000, and in one embodiment above about 900,000. The process comprises:
(A) continuously introducing into a reactor, a 1,3-conjugated diene, an aromatic vinyl compound, a hydrocarbon solvent and a polymerization catalyst comprising a trimetalated 1-alkyne wherein the catalyst is obtained by reacting at a temperature of above about 70.degree. C., a 1-alkyne containing at least 4 carbon atoms, an organo metallic compound, R.degree. M and a 1,3-conjugated diene wherein the alkyne is characterized by the formula

REFERENCES:
patent: 3736312 (1973-05-01), Halasa
patent: 3769267 (1973-10-01), Cheng et al.
patent: 4189555 (1980-02-01), Massoubre
patent: 4201848 (1980-05-01), Kotani et al.
patent: 4859748 (1989-08-01), Priddy et al.
patent: 5147951 (1992-09-01), Kang et al.
Sullivan et al, Processing and Vulcanization Tests, in Rubber Technology, 3rd Ed., Van Nostrand Reinhold, N.Y., 112-113 (1987).
Seymour et al., Polymer Chemistry (2nd Ed.) Marcel Dekker, Inc., N.Y., N.Y., 94-97 (1988).

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