Solution polymerization of conjugated dienes

Details Solution polymerization of conjugated dienes Solution polymerization of conjugated dienes

1983-03-25

1985-06-25

Michl, Paul R.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526335, 526340, C08F 3606

Patent

active

045255601

ABSTRACT:
A method of producing a conjugated diene polymer comprising polymerizing monomers comprising at least one conjugated diene hydrocarbon under solution polymerization conditions such that substantially all of said monomers are polymerized, terminating the thus formed polymer to deactivate substantially all of the active polymer lithium, and then polymerizing additional portions of said monomers in solution with at least a portion of the terminated polymer under conditions such that substantially all of said additional monomers are polymerized.

REFERENCES:
patent: 3644585 (1972-02-01), Takayanagi
patent: 4098980 (1978-07-01), Markle
patent: 4219627 (1980-08-01), Halasa

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