Water-borne fluoroelastomer coatings and cured films therefrom

Details Water-borne fluoroelastomer coatings and cured films therefrom Water-borne fluoroelastomer coatings and cured films therefrom

C - Chemistry, Metallurgy

08

L

C08L 27/12 (2006.01) C08J 3/24 (2006.01) C08K 5/544 (2006.01) C08K 5/5445 (2006.01) C09D 5/02 (2006.01) C09D 127/12 (2006.01)

Patent

CA 2283424

A water-borne fluoroelastomer composition comprising an aqueous dispersion of a fluoroelastomer polymer, from about 2 to about 30 parts by weight per one hundred parts by weight of polymer of a curative system, said curative system having been formed by blending from about 6 to about 94 parts by weight of a stabilized siloxane and from about 94 to about 6 parts by weight of a non-stabilized silane, where said stabilized siloxane and said non-stabilized silane total about one hundred parts by weight of the curative system, from 0 to about 40 parts by weight of an additive filler per one hundred parts by weight of polymer, and sufficient water to provide a composition having a solids content of from about 10 to about 80 percent by weight of the total composition.

L'invention concerne une composition de fluoroélastomères en suspension aqueuse comprenant une dispersion aqueuse d'un polymère fluoroélastomère, d'environ 2 à 30 parties en poids pour 100 parties en poids du polymère d'un système curatif, lequel est formé en mélangeant environ 6 à 94 parties en poids d'un siloxane stabilisé et environ 94 à 6 parties en poids d'un silane non stabilisé. Le siloxane stabilisé et le silane non stabilisé totalisent environ 100 parties en poids du système curatif, de 0 à environ 40 parties en poids d'une charge additive pour 100 parties en poids de polymère et assez d'eau pour obtenir une composition ayant des contenus solides d'environ 10 à 80 % en poids de la composition totale.

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