Process for the preparation of cyclized polydienes

Details Process for the preparation of cyclized polydienes Process for the preparation of cyclized polydienes

1978-01-17

1979-01-09

Hamrock, William F.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526185, C08F 452

Patent

active

041339452

ABSTRACT:
Cyclized polydienes devoid of crosslinked fractions are prepared by polymerizing conjugated diolefins in solution in a solvent consisting of a mixture of saturated hydrocarbons with 20-95% by weight, with respect to the mixture, of chlorinated saturated hydrocarbons, in the presence of from 0.1 to 10 moles for each 100 moles of diolefins, of a catalyst of the formula R.sub.n Al Cl.sub.3-n, where R is an alkyl radical with 1-6 carbon atoms and n is from 1 to 1.5.
These cyclized polydienes can be used in coating formulations.

REFERENCES:
patent: 3123592 (1964-03-01), Gasparoni et al.
patent: 3349065 (1967-10-01), Kennedy
patent: 3562804 (1971-02-01), Powers
patent: 3721661 (1973-03-01), Susa

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