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US 5,852,105 AGranted
Aqueous dispersions comprising a polyurethane, a polyisocyanate and a tertiary alkanolamine
AssigneeBASF SE
InventorsRenate Wustefeld, Ulrike Licht
Life of this patent
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Abstract
Aqueous two-component dispersions comprising a) a polyurethane carrying anionic groups which make the polyurethane dispersible in water (component a), b) from 0.04 to 1.5 mol of NCO groups in the form of a water-emulsifiable polyisocyanate (component b) per kg of component (a), and c) from 0.05 to 40 mol of tertiary amino groups in the form of a tertiary alkanolamine (component c) per mole of NCO groups in the form of component (b).
Claims9
An aqueous two-component dispersion comprising
- a) a polyurethane carrying anionic groups which make the polyurethane dispersible in water (component a),
- b) from 0.04 to 1.5 mol of NCO groups in the form of a water-emulsifiable polyisocyanate (component b) per kg of component (a), and
- c) from 0.05 to 40 mol of tertiary amino groups in the form of a tertiary alkanolamine (component c) per mole of NCO groups in the form of component (b).
Dependencies are inferred from the claim text.