HIGHLY FUNCTIONAL POLYISOCYANATES CONTAINING ALLOPHANATE AND SILANE GROUPS

Producing allophanate group containing polyisocyanate, comprises: reacting (a) at least one silane groups exhibiting hydroxyurethane and/or hydroxyamide obtainable by reacting aminosilanes with cyclic carbonates or lactones, and (b) at least one further polyhydric hydroxy functional component, with...

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Bibliographische Detailangaben
Hauptverfasser:	HANS-JOSEF LAAS, MARKUS MECHTEL DR, THOMAS BAEKER
Format:	Patent
Sprache:	eng ; por
Schlagworte:	ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAININGELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN,SULFUR, SELENIUM OR TELLURIUM ADHESIVES CHEMICAL PAINT OR INK REMOVERS CHEMISTRY COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS COMPOSITIONS BASED THEREON CORRECTING FLUIDS DYES FILLING PASTES INKS MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS ORGANIC CHEMISTRY ORGANIC MACROMOLECULAR COMPOUNDS PAINTS PASTES OR SOLIDS FOR COLOURING OR PRINTING POLISHES THEIR PREPARATION OR CHEMICAL WORKING-UP USE OF MATERIALS THEREFOR WOODSTAINS
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Beschreibung
Zusammenfassung:	Producing allophanate group containing polyisocyanate, comprises: reacting (a) at least one silane groups exhibiting hydroxyurethane and/or hydroxyamide obtainable by reacting aminosilanes with cyclic carbonates or lactones, and (b) at least one further polyhydric hydroxy functional component, with (c) at least one diisocyanate with aliphatically, cycloaliphatically, araliphatically and/or aromatically bound isocyanate groups in molar excess amount, based on the isocyanate reactive groups of the components (a) and (b); and optionally subsequently removing the unreacted diisocyanate excess. Producing allophanate group containing polyisocyanate, comprises: reacting (a) at least one silane groups exhibiting hydroxyurethane and/or hydroxyamide obtainable by reacting aminosilanes with cyclic carbonates or lactones, and (b) at least one further polyhydric hydroxy functional component having a molecular weight of 62-2000 g/mol, with (c) at least one diisocyanate with aliphatically, cycloaliphatically, araliphatically and/or aromatically bound isocyanate groups in molar excess amount, based on the isocyanate reactive groups of the components (a) and (b); and optionally subsequently removing the unreacted diisocyanate excess. Independent claims are also included for: (1) an allophanate group containing polyisocyanate, obtainable by the above method; and (2) a coating agent comprising allophanate groups bearing polyisocyanate and a substrate coated with this coating agent.