Water-and oil-repellent fluoroacrylates

Details Water-and oil-repellent fluoroacrylates Water-and oil-repellent fluoroacrylates

C - Chemistry, Metallurgy

08

F

C08F 20/24 (2006.01) C07C 271/08 (2006.01) C07C 311/04 (2006.01)

Patent

CA 2551874

Fluoroacrylates comprise the reaction product of: (a) at least one fluorochemical alcohol represented by the formula: wherein: n = 1 to 4, R = hydrogen or an alkyl group of 1 to 4 carbon atoms, m = 2 to 8, Rf = CnF2n+1, y = 0 to 6, and q = 1 to 8; (b) at least one unbranched symmetric diisocyanate; and (c) at least one hydroxy-terminated alkyl (meth) acrylate or 2-fluoro acrylate monomer having 2 to about 30 carbon atoms in its alkylene portion.

L'invention concerne des fluoroacrylates qui comprennent le produit de réaction de : (a) au moins un composé d'alcool fluoré représenté par la formule : C¿n?F¿2n+1?-X-OH, dans laquelle n = 1 à 4, X = (formule II, III, IV) ou -C¿q?H¿2q?-, R = hydrogène ou un groupe alkyle comportant 1 à 4 atomes de carbone, m = 2 à 8, R¿f? = C¿n?F¿2n+1?, y = 0 à 6 et q = 1 à 8 ; (b) au moins un diisocyanate symétrique non ramifié ; et (c) au moins un (méth)acrylate d'alkyle à terminaison hydroxy ou un monomère de 2-fluoro acrylate comportant entre 2 et environ 30 atomes de carbone dans sa partie alkylène.

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