Water- and oil-repellent fluorourethanes and fluoroureas

Details Water- and oil-repellent fluorourethanes and fluoroureas Water- and oil-repellent fluorourethanes and fluoroureas

C - Chemistry, Metallurgy

08

G

C08G 18/28 (2006.01)

Patent

CA 2592369

A fluorochemical compound comprises the reaction product of: (a) the reaction product of: (i) at least one fluorochemical alcohol represented by the formula: CnF2n+1-X-OH wherein: n = 1 to 6 R = hydrogen or an alkyl group of 1 to 4 carbon atoms, m = 2 to 8, Rf = CnF2n+1, y = 0 to 6, q = 1 to 8; and (ii) at least one unbranched symmetric diisocyanate, and (b) at least one co- reactant comprising two or more functional groups that are capable of reacting with an isocyanate group.

L'invention concerne un composé chimique fluoré comprenant le produit de réaction de: (a) le produit de réaction de (1) au moins un alcool fluoré représenté par la formule CnF2n+1-X-OH, dans laquelle n = 1 à 6, R = hydrogène ou un groupe alkyle doté de 1 à 4 atomes de carbone, m = 2 à 8, Rf = CnF2n+1, y = 0 à 6, q = 1 à 8, et de (2) au moins un diisocyanate symétrique non ramifié; et (b) au moins un coréactif comprenant deux ou davantage de groupes fonctionnels pouvant réagir avec un groupe isocyanate.

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