Thixotropic amino formaldehyde resin
AssigneeAkzo Nobel N.V.
InventorsRichard Gerardus Johannes Maria Van Heugten, Johannes Bernardus Van Der Sanden, Cornelis Adrianus Maria Vijverberg
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Abstract
A thixotropic amino formaldehyde resin with a urea-functional compound, obtainable by adding a polyisocyanate-functional compound to a monoamine-functional compound or a monoisocyanate-functional compound to a polyamine-functional compound in the presence of the amino formaldehyde resin and reacting the amine and isocyanate-functional compounds to form the urea-functional compound entangled to the resin. The thixotropic amino formaldehyde resin can be used in the formulation of coating or adhesive compositions.
Claims6
A thixotropic amino formaldehyde resin with a urea-functional compound obtainable by adding a polyisocyanate-functional compound to a monoamine-functional compound in the presence of the amino formaldehyde resin and reacting the amine and isocyanate-functional compounds to form the urea-functional compound entangled as solid material in the resin.
A process for the preparation of a thixotropic amino formaldehyde resin with a urea-functional compound comprising the steps of adding a polyisocyanate-functional compound to a monoamine-functional compound in the presence of the amino formaldehyde resin, and reacting the amine and isocyanate-functional compounds to form the urea-functional compound entangled to the resin.
Dependencies are inferred from the claim text.