Heat-curable mixtures of polyisocyanate and polyol which have a long shelf life, process for their preparation, and their use

Heat-curable mixtures of polyisocyanate and polyol which have a long shelf life, process for their preparation, and their use

The invention relates to heat-curable mixtures of polyisocyanate and polyol which have a long shelf life at room temperature. In these mixtures, the polyisocyanate is in the form of discrete particles in the polyol, the polyisocyanate particles having been deactivated at their surface to the extent...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: SPOOR,HERBERT,DR, BLUM,RAINER, HOLTMANN,GERHARD,DR, OSTERLOH,ROLF,DR
Format: Patent
Sprache:eng ; ger
Schlagworte:
ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE
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
MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE
METALLURGY
MISCELLANEOUS APPLICATIONS OF MATERIALS
MISCELLANEOUS COMPOSITIONS
NATURAL RESINS
NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL
ORGANIC MACROMOLECULAR COMPOUNDS
PAINTS
PASTES OR SOLIDS FOR COLOURING OR PRINTING
POLISHES
THEIR PREPARATION OR CHEMICAL WORKING-UP
USE OF MATERIALS AS ADHESIVES
USE OF MATERIALS THEREFOR
WOODSTAINS
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Beschreibung
Zusammenfassung:The invention relates to heat-curable mixtures of polyisocyanate and polyol which have a long shelf life at room temperature. In these mixtures, the polyisocyanate is in the form of discrete particles in the polyol, the polyisocyanate particles having been deactivated at their surface to the extent of from 0.01 to 0.499 equivalent percent of the total amount of isocyanate groups present. These mixtures are suitable as coating compositions and adhesive compositions and as sealants, in particular as underseal compositions for motor vehicles.