Substituted cycloalkanes, and use thereof as cationic...

Details Substituted cycloalkanes, and use thereof as cationic... Substituted cycloalkanes, and use thereof as cationic...

2007-10-30

2007-10-30

Teskin, Fred (Department: 1713)

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

C526S135000, C526S213000, C526S237000, C526S348700, C570S186000, C570S190000, C568S670000, C560S193000

Reexamination Certificate

active

10578185

ABSTRACT:
Substituted 7- to 12-membered cycloalkanes which have leaving groups, in particular chlorine atoms, on tertiary ring carbons, a process for preparing them and their use as initiators for cationic polymerization, in particular the cationic polymerization of isobutene are described. Preferred compounds are 1,4-dichloro-1,4-dimethylcyclooctane, 1,5-dichloro-1,5-dimethylcyclooctane and mixtures thereof. They are prepared by addition of hydrogen chloride onto appropriately substituted cycloalkapolyenes.

REFERENCES:
patent: 4942210 (1990-07-01), Kuntz
patent: 7001966 (2006-02-01), Lang et al.
patent: 0 713 883 (1996-05-01), None
patent: 02/096964 (2002-12-01), None

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