Urethane modified water-reducible alkyd resins

Details Urethane modified water-reducible alkyd resins Urethane modified water-reducible alkyd resins

C - Chemistry, Metallurgy

08

G

C08G 18/42 (2006.01) C09D 175/06 (2006.01) C09D 175/14 (2006.01)

Patent

CA 2598494

Urethane modified water-reducible alkyd resins ABCD, comprising moieties derived from polyhydric alcohols A, modified fatty acids B made h.gamma. grafting olefinically unsaturated carboxylic acids B2 onto fatty acids Bl, ungrafted fatty acids C and polyfunctional isocyanates D, a process for their production, and a method of use thereof in coating binders

L~invention concerne des résines alkyde ABCD réductibles par l~eau et modifiées par de l~uréthane, comprenant des fragments dérivés de polyols A, des acides gras modifiés B préparés en greffant des acides carboxyliques oléfiniquement insaturés B2 sur des acides gras B1, des acides gras non greffés C et des isocyanates polyfonctionnels D. L~invention concerne également un procédé pour la production desdites résines et un procédé d'utilisation de celles-ci dans des liants de revêtement.

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