Nuclear halogenated .alpha.,.alpha.'-bis(cyclopentadienyl)xylene

Details Nuclear halogenated .alpha.,.alpha.'-bis(cyclopentadienyl)xylene Nuclear halogenated .alpha.,.alpha.'-bis(cyclopentadienyl)xylene

1977-10-03

1979-02-20

Lilling, Herbert J.

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

Synthetic resins

Polymer of an ethylenically unsaturated reactant with a...

526283, 526308, 260648C, 260648F, 260649R, 260649F, C08F13208, C08F 3208, C08G 6112, C08C 6100

Patent

active

041408438

ABSTRACT:
New halogenated bis(cyclopentadienyl) compounds of the general formula ##STR1## in which X represents a halogen atom having an atomic number of at most 35, that is to say a fluorine, bromine or preferably chlorine atom, R.sub.1 and R.sub.1 ' each represents a hydrogen atom or a methyl group, and n = 1, 2, 3 or 4.
The monomer of the formula (I) undergoes spontaneous dimerization or oligomerization respectively after it is formed. The oligomer has the formula ##STR2## WHERE P IS 2 TO 20.

REFERENCES:
patent: 2726232 (1965-12-01), Upson

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