The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 30, 2007
Filed:
Nov. 04, 2004
Darijo Mijolovic, Mannheim, DE;
Mirjam Herrlich-loos, Mannheim, DE;
Gabriele Lang, Mannheim, DE;
Herbert Mayr, Starnberg, DE;
Darijo Mijolovic, Mannheim, DE;
Mirjam Herrlich-Loos, Mannheim, DE;
Gabriele Lang, Mannheim, DE;
Herbert Mayr, Starnberg, DE;
BASF Aktiengesellschaft, Ludwigshafen, DE;
Ludwig-Maximilians-Universitaet, Munich, DE;
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.