Organic compounds -- part of the class 532-570 series – Organic compounds – Four or more ring nitrogens in the bicyclo ring system
Patent
1995-03-03
1996-10-15
Higel, Floyd D.
Organic compounds -- part of the class 532-570 series
Organic compounds
Four or more ring nitrogens in the bicyclo ring system
544222, 560357, 252 862, C07D25100, D06M 1328, D06M 15576
Patent
active
055655645
ABSTRACT:
Polyfluoro organic compound having at least one urea linkage derived from: (1) at least one polyisocyanate containing at least three isocyanate groups, (2) at least one fluorochemical compound which contains per molecule (a) a single functional group having one or more Zerewitinoff hydrogen atoms and (b) at least two carbon atoms each of which contains least two fluorine atoms, and (3) water in an amount sufficient to to react with from about 5% to about 60% of the isocyanate groups.
REFERENCES:
patent: 3987227 (1976-10-01), Schultz et al.
patent: 4504401 (1985-03-01), Matsuo et al.
patent: 4668406 (1987-05-01), Chang
patent: 4877540 (1989-10-01), Engelhardt et al.
patent: 5414111 (1995-05-01), Kirchner
E. I. Du Pont de Nemours and Company
Higel Floyd D.
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