US 5,336,711 A · Binder composition and its use for the production of coating or sealing compositions

Abstract

The present invention relates to an aqueous binder composition containing A) an aqueous solution or dispersion of a water-dilutable organic polyol component containing at least one polyester resin having carboxylate and hydroxyl groups and grafted with vinyl monomers and B) a polyisocyanate component which is emulsified in the aqueous solution or dispersion A), has a viscosity at 23.degree. C. of 50 to 10,000 mPa.s and contains at least one organic polyisocyanate, wherein the binder composition has an NCO/OH equivalent ratio of 0.5:1 to 5:1, based on the isocyanate groups of component B) and the alcoholic hydroxyl groups of component A). The present invention also relates to a process for the production of a coating or sealing composition containing this aqueous binder composition.

Claims10

Dependent claims

An aqueous binder composition comprising

A) an aqueous solution or dispersion of a water-dilutable organic polyol component containing at least one polyester resin having carboxylate and hydroxyl groups and grafted with vinyl monomers and
B) a polyisocyanate component which is emulsified in the aqueous solution or dispersion A), has a viscosity at 23.degree. C. of 50 to 10,000 mPa.s and contains at least one organic polyisocyanate,
wherein the binder composition has an NCO/OH equivalent ratio of 0.5:1 to 5:1, based on the isocyanate groups of component B) and the alcoholic hydroxyl groups of component A).

Dependencies are inferred from the claim text.

Facts

Application

07/973,366Filed 9 Nov 1992

Priority

DE 413789618 Nov 1991

Granted

9 Aug 1994

Term ends

Not estimatedThe source records don’t support an estimate.

Classification11 codes

C08G 18/4288
Polycondensates having carboxylic or carbonic ester groups in the main chain: modified by higher fatty oils or their acids or by resin acids
C08G 18/0823
Containing anionic or anionogenic groups: containing carboxylate salt groups or groups forming them
C08G 18/631
Block or graft polymers obtained by polymerising compounds having carbon-to-carbon double bonds on to polymers: onto polyesters and/or polycarbonates
C08G 18/635
Block or graft polymers obtained by polymerising compounds having carbon-to-carbon double bonds on to polymers: onto unsaturated polymers

Binder composition and its use for the production of coating or sealing compositions

Life of this patent

Binder composition and its use for the production of coating or sealing compositions

Life of this patent

Abstract

Claims10