Substituted cycloalkanes, and use thereof as cationic polymerization initiators

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Assignees

• BASF SE
• Ludwig-Maximilians-Universitat Munchen · DE

Inventors

• Darijo Mijolovic · Mannheim, DE
• Mirjam Herrlich-Loos · Mannheim, DE
• Gabriele Lang · Mannheim, DE
• Herbert Mayr · Erkrath, DE

Key dates

• Filing date: Nov 4, 2004
• Grant date: Oct 30, 2007
• Expiry date: Nov 4, 2024

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C2601/18
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

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.