Polyurethane prepolymer, useful in reactive system that is useful for producing e.g. adhesives, sealants and molded parts, comprises alkylene oxide-ether units and structural units comprising substituted cyclopentanone derivative

• Main Authors: GUERTLER, CHRISTOPH, KLOBUTOWSKI, THERESE, FELLER, THOMAS, MARKER, VOLKER
• Format: Patent
• Language: English; German
• Published: 21.10.2010
• Subjects: ADHESIVES; CHEMICAL PAINT OR INK REMOVERS; CHEMISTRY; COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS; COMPOSITIONS BASED THEREON; CORRECTING FLUIDS; DYES; FILLING PASTES; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR; INKS; LAUNDERING; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; ORGANIC MACROMOLECULAR COMPOUNDS; PAINTS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; POLISHES; TEXTILES; THEIR PREPARATION OR CHEMICAL WORKING-UP; TREATMENT OF TEXTILES OR THE LIKE; TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS,FABRICS, FEATHERS, OR FIBROUS GOODS MADE FROM SUCH MATERIALS; USE OF MATERIALS THEREFOR; WOODSTAINS

Polyurethane prepolymer comprises: (a) alkylene oxide-ether units; and (b) structural units comprising substituted cyclopentanone derivative (I). Polyurethane prepolymer comprises: (a) alkylene oxide-ether units; and (b) structural units comprising substituted cyclopentanone derivative of formula (I). X : electron withdrawing group; R 1>, R 2>H, optionally saturated aliphatic or cycloaliphatic or optionally substituted aromatic or araliphatic, where R 1>, R 2>contains up to 12C, optionally comprises upto 3 heteroatoms comprising O, S or N and which is optionally substituted by halo; and n : 0-5. Independent claims are also included for: (1) preparation of polyurethane prepolymer; (2) a prepolyol, based on polyisocyanate prepolymer, where isocyanate prepolymer is reacted with amino- and hydroxy functional components, preferably aminoethanol, methylaminoethanol, bis(aminoethanol) or bis hydroxymethyl amine to form terminal hydroxylated products; (3) a reactive system comprising (i) at least one polyurethane prepolymer, (ii) at least one organic compound with at least 2 primary amino groups, (iii) optionally at least one oxirane group exhibiting compound having an average oxirane functionality of greater than 1, and (iv) optionally catalysts and/or additives and (v) optionally products of reaction of (i) to (iv) with each other; (4) producing the reactive system comprising mixing (i) to (iv) in any order; and (5) a substrate coated with the coating obtained from the reactive system. [Image]. Die Erfindung betrifft neue blockierte Polyurethan-Prepolymere, ein Verfahren zu deren Herstellung und daraus hergestellte raumtemperaturhärtende Reaktivsysteme und deren Verwendung.