Preparation of aqueous dispersions of condensates of urea...

Details Preparation of aqueous dispersions of condensates of urea... Preparation of aqueous dispersions of condensates of urea...

C - Chemistry, Metallurgy

08

L

400/1319, 400/40

C08L 61/24 (2006.01) C08G 12/12 (2006.01) C08J 3/02 (2006.01) C08J 3/03 (2006.01) C09D 161/24 (2006.01)

Patent

CA 1270977

ABSTRACT OF THE DISCLOSURE: In a process for the preparation of stable aqueous aldehyde resin dispersions and for the production of surface coating binders, a melt or highly concentrated solution of a polycondensate of urea and a CH-acidic aldehyde, with or without formaldehyde, is dispersed in water in the presence of an organic protective colloid and, if required, an emulsifier. These aqueous resin dispersions can be used, in combination with other film formers, as surface coating binders.

474938

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