METHOD FOR PREPARING (CO)POLYMERS BY METAL-FREE ANIONIC POLYMERIZATION IN THE PRESENCE OF A PHOSPHONIUM CATION CONTAINING AT LEAST ONE ANNELLATED AROMATIC RING

Title:

METHOD FOR PREPARING (CO)POLYMERS BY METAL-FREE ANIONIC POLYMERIZATION IN THE PRESENCE OF A PHOSPHONIUM CATION CONTAINING AT LEAST ONE ANNELLATED AROMATIC RING

Document Type and Number:

WIPO Patent Application WO1998045336

Kind Code:

A3

Abstract:

The present invention concerns a novel method for preparing polymers (preferably (meth)acrylate polymers and copolymers) having a narrow molecular weight distribution by metal-free anionic polymerization in the presence of a phosphonium cation containing at least one annellated aromatic ring as substituent on the phosphorous atom.

Inventors:

JUENGLING STEPHAN
WARZELHAN VOLKER
GAUSEPOHL HERMANN
HOGEN-ESCH THIEO E
DIMOV DIMO K

Application Number:

PCT/EP1998/001945

Publication Date:

February 11, 1999

Filing Date:

April 02, 1998

Export Citation:

Click for automatic bibliography generation Help

Assignee:

BASF AG (DE)

International Classes:

C07F9/54; C08F2/00; C08F4/00; (IPC1-7): C08F4/00; C07F9/54; C08F20/08

Domestic Patent References:

WO1997031953A1	1997-09-04
WO1996028487A2	1996-09-19

Download PDF:

View/Download PDF PDF Help

Previous Patent: HUMANIZED ANTIBODIES AND METHODS FOR FORMING HUMANIZED ANTIBODIES

Next Patent: MODIFICATION OF POLYMER MOLECULAR WEIGHT DISTRIBUTION BY USING MIXED SILANE SYSTEMS IN HIGH ACTIVITY...