IP Library › Granted Patent US 6,891,007
Granted Patent B2
US 6,891,007 · App. 10/239,682 · Granted May 10, 2005

Method for polymerizing polar substituted cycloalkenes

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Quick Facts
Patent No.
US 6,891,007
App. No.
10/239,682
Granted
May 10, 2005
Kind
B2
Abstract

This invention relates to a process for polymerizing polar substituted norbornenes and/or cycloalkenes, optionally, in the presence of another unsaturated compound. The method is characterized in that the polymerization is carried out in the presence of one or more tungsten carbine complexes.

Claims (2)

1. A process for the polymerization of polar substituted cycloalkenes, optionally in the presence of one or more further unsaturated compounds, comprising the step of carrying out polymerization in the presence of one or more tungsten-carbyne complexes and/or molybdenum-carbyne complexes, wherein the polar substituents are selected from the group consisting of —CN, halogen, —CF 3 , —C 3 F 5 to C 20 —F 41 , —N(C 1 -C 20 alkyl) 2 , C 1 -C 20 -alkylene-COOC 1 -C 20 -alkyl, and —OH.

2. A process according to claim 1 wherein the polmerization is carried out in the absence of a solvent.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 1, 2006
From: BAYER AG
To: LANXESS DEUTSCHLAND GMBH
Reel/Frame 018584/0319 →