Processes for improving linking efficiencies in the synthesis of

Details Processes for improving linking efficiencies in the synthesis of Processes for improving linking efficiencies in the synthesis of

1998-02-26

2000-08-22

Seidleck, James J.

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

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

525123, 525127, 525177, 525 98, 525289, 525314, 525316, 5253329, 526173, 526180, 526181, 526190, C08F23610

Patent

active

06107408&

ABSTRACT:
Processes for the synthesis of star or multi-branched polymers and the resultant polymers. One or more alkadiene monomers are polymerized in the presence of suitable organometallic initiators and subsequently coupled to form star polymers. Prior to coupling, one or more alkenylsubstituted aromatic hydrocarbons are incorporated at the living ends of the polydienyl anions to provide increased linking efficiencies.

REFERENCES:
patent: 3280084 (1966-10-01), Zelinski et al.
patent: 3377404 (1968-04-01), Zelinski et al.
patent: 3639517 (1972-02-01), Kitchen et al.
patent: 3985830 (1976-10-01), Fetters et al.
patent: 5798418 (1998-08-01), Quirk

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