Film-forming material containing phosphorous and methods of...

C - Chemistry – Metallurgy – 08 – L

Patent

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Details

C08L 63/02 (2006.01) C08J 5/18 (2006.01) C08L 101/06 (2006.01) C09D 163/02 (2006.01) C09D 201/06 (2006.01)

Patent

CA 2635857

Film-forming materials include resins having a covalently bonded phosphorous atom, the phosphorous atom having at least one covalently bonded oxygen atom. Film-forming resins containing phosphorous can include epoxy, acrylic, polyurethane, polycarbonate, polysiloxane, polyvinyl, polyether, aminoplast, and polyester resins. A process to produce a film- forming resin includes reacting various polymers to incorporate a pendent group comprising a covalently bonded phosphorous atom. Methods of making a coating composition including a film-forming material having a covalently bonded phosphorous atom, the phosphorous atom having at least one covalently bonded oxygen atom. Coating compositions can be used to coat a substrate, such as a metal substrate, by electrodeposition. Applied coatings containing the film-forming resins can be cured to form crosslinked films on substrates.

Cette invention a trait à des matériaux filmogènes comprenant des résines renfermant un atome de phosphore lié par covalence, ledit atome de phosphore ayant au moins un atome d'oxygène lié par covalence. Les résines filmogènes contenant du phosphore peuvent comprendre des résines époxy, acryliques, polyuréthane, polycarbonate, polysiloxane, polyvinyliques, de polyéther, d'aminoplaste et polyester. Un procédé permettant de produire une résine filmogène comprend la réaction de différents polymères pour incorporer un groupe pendant comprenant un atome de phosphore lié par covalence. L'invention se rapporte également à des procédés de fabrication d'une composition de revêtement comprenant un matériau filmogène ayant un atome de phosphore lié par covalence, ledit atome de phosphore ayant au moins un atome d'oxygène lié par covalence. Les compositions de revêtement peuvent être utilisées pour enduire un substrat, par exemple un substrat métallique, par électrodéposition. Les revêtements appliqués et contenant lesdites résines filmogènes peuvent être vulcanisés de manière à former des pellicules réticulées sur des substrats.

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