Lithium alkoxide diamines as modifiers for polymerization of die

Details Lithium alkoxide diamines as modifiers for polymerization of die Lithium alkoxide diamines as modifiers for polymerization of die

1982-06-14

1983-08-30

Schofer, Joseph L.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

252431L, 526335, C08F 448, C08F 3606

Patent

active

044018002

ABSTRACT:
A process and catalyst system is disclosed herein for the preparation of (co)polymers having a 1,2-microstructure of between 20 and 90 percent. These (co)polymers are prepared in a hydrocarbon or non-polar solvent from a monomer system which contains at least one 1,3-diene monomer. The catalyst system which is employed in the production of the (co)polymers of the present invention is a combination of a chelated lithium alkoxide diamine modifier and an anionic initiator based on lithium.

REFERENCES:
patent: 4129705 (1978-12-01), De Zarauz
patent: 4238588 (1980-12-01), Lochman et al.
patent: 4247418 (1981-01-01), Halasa et al.
Chem. Abstracts vol. 95 25725q, Halasa et al.

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