HYDROXY-FUNCTIONAL PREPOLYMERS CONTAINING HYDANTOIN GROUP PRECURSORS AND THEIR USE IN COATING COMPOSITIONS

• Main Authors: YESKE, PHILIP E, GINDIN, LYUBA K, JONSSON, E. HAAKAN, WICKS, DOUGLAS A
• Format: Patent
• Language: English; French
• Published: 30.10.2007
• Subjects: ACYCLIC OR CARBOCYCLIC COMPOUNDS; CHEMISTRY; COMPOSITIONS BASED THEREON; HETEROCYCLIC COMPOUNDS; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; METALLURGY; ORGANIC CHEMISTRY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP

The present invention relates to hydroxy-functional prepolymers containing urea groups and corresponding to the formula see formula (I) wherein R represents the residue obtained by removing the isocyanate groups from an organic monomeric diisocyanate, a polyisocyanate adduct or an NCO prepolymer containing hydantoin groups or hydantoin group precursors, R1 and R2 may be identical or different and represent organic groups which are inert towards isocyanate groups at a temperature of 100.degree.C or less, R3 and R4 may be identical or different and represent hydrogen or organic groups which are inert towards isocyanate groups at a temperature of 100.degree.C or less, R5 represents the hydrocarbon radical obtained by removing the amino and hydroxyl groups from an amino alcohol, n has a value of 1 to 3 and m has a value of 2 to 6. The present invention is also directed to compositions suitable for the production of coatings, adhesives or elastomers containing these polyhydantoin prepolymers in combination with optionally blocked polyisocyanates or aminoplast resins.