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Patent Searching and Data


Title:
PROCESS FOR PREPARING FLUOROCHEMICAL MONOISOCYANATES
Document Type and Number:
WIPO Patent Application WO2005065164
Kind Code:
A3
Abstract:
A process for preparing fluorochemical monoisocyanates comprises reacting at least one fluorochemical alcohol represented by the formula CnF2n+1SO2NCH3 (CH2) mOH, wherein n = 2 to 5, and m = 2 to 4, with 4,4' -diphenylmethane diisocyanate (MDI) in a solvent in which the resulting fluorochemical monoisocyanate is not soluble; wherein the molar ratio of fluorochemical alcohol:MDI is from about 1:1 to about 1:2.5.

Inventors:
KLUN THOMAS P
KIRK ALAN R
MOORE GEORGE G I
CLARK JOHN C
Application Number:
US2004041743W
Publication Date:
September 09, 2005
Filing Date:
December 14, 2004
Export Citation:
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Assignee:
3M INNOVATIVE PROPERTIES COMPANY
International Classes:
C07C303/40; C07C311/09; (IPC1-7): C07C303/00
Foreign References:
US4728542A1988-03-01
Other References:
See also references of EP 1699755A2
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