Curable fluorinated copolymers and coatings and processes...

C - Chemistry – Metallurgy – 08 – F

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C08F 8/10 (2006.01) C08F 8/30 (2006.01) C08G 18/62 (2006.01) C08G 18/70 (2006.01) C09D 127/12 (2006.01) C09D 175/04 (2006.01) C14C 11/00 (2006.01) C08F 214/26 (2006.01)

Patent

CA 2632399

A process for coating flexible substrates applying a curable fluorinated copolymer A which is the reaction product of FC and M1) at least one polycarboxylic anhydride and/or M2) at least a monofunctional isocyanate, wherein FC is a curable fluorinated copolymer on the basis of FC1) at least one fluorinated olefin having 2 to 10 carbon atoms, FC2) at least one non- fluorinated olefin having OH-groups and optionally carboxyl groups and FC3) at least one non-fluorinated, hydroxyl group free olefin having optionally carboxyl groups.

L'invention concerne un procédé permettant de former un revêtement sur des substrats flexibles en appliquant un copolymère fluoré durcissable (A) qui est un produit réactionnel de FC et de M1) au moins un anhydride polycarboxylique et/ou de M2) au moins un isocyanate monofonctionnel, FC étant un copolymère fluoré formé à partir de FC1) au moins une oléfine fluorée possédant de 2 à 10 atomes de carbone, FC2) au moins une oléfine non fluorée comprenant des groupes OH et éventuellement des groupes carboxyle, et FC3) au moins une oléfine non fluorée exempte de groupes hydroxyle, comprenant éventuellement des groupes carboxyle.

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