Catalyst containing oligomeric oxolanyl alkane modifiers and pro

Details Catalyst containing oligomeric oxolanyl alkane modifiers and pro Catalyst containing oligomeric oxolanyl alkane modifiers and pro

1983-03-09

1984-01-31

Michl, Paul R.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526181, 502152, 502157, C08F 448

Patent

active

044290900

ABSTRACT:
A process and catalyst system is disclosed herein for the preparation of (co)polymers having a 1,2-microstructure of between 20 and 95 percent. These (co)polymers are prepared in a hydrocarbon or other 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 (1) an anionic initiator based on lithium; (2) an alkyl magnesium compound or an alkyl aluminum compound or a mixture thereof; and (3) a modifier compound selected from the group consisting of linear and cyclic oligomeric oxolanyl alkanes.

REFERENCES:
patent: 3726832 (1973-04-01), Komatsu

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