Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Alan R. Kirk0
John C. Clark0
Thomas P. Klun0
Zai-Ming Qiu0
George G. I. Moore0
Date of Patent
April 22, 2008
0Patent Application Number
114570370
Date Filed
July 12, 2006
0Patent Primary Examiner
Patent 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.
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