Organo-lithium compounds and a process for their preparation

Details Organo-lithium compounds and a process for their preparation Organo-lithium compounds and a process for their preparation

1979-07-31

1981-04-28

Hamrock, William F.

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

Synthetic resins

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

526173, 525388, 585406, C08F 448, C08F27902

Patent

active

042647495

ABSTRACT:
Organo-lithium compounds of the formula: ##STR1## wherein R is an alkyl group of up to 5 carbon atoms, R' is either hydrogen or an alkyl group of up to 5 carbon atoms and n is an integer from 2 to 10. These bifunctional organo-lithium compounds are prepared without the use of any polar or complexing agent and are useful as polymerization initiators for the production of block copolymers.

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patent: 3725488 (1973-04-01), Hsieh
patent: 3734973 (1973-05-01), Farrar
patent: 3776964 (1973-12-01), Morrison et al.
patent: 4067917 (1978-01-01), Sigwalt et al.
patent: 4172190 (1979-10-01), Tung et al.

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