MOISTURE CURABLE POLYURETHANE HOT MELT ADHESIVE COMPOSITION HAVING LOW LEVELS OF DIISOCYANATE MONOMER

MOISTURE CURABLE POLYURETHANE HOT MELT ADHESIVE COMPOSITION HAVING LOW LEVELS OF DIISOCYANATE MONOMER

A moisture curable polyurethane hot melt adhesive composition and a process for making the same are disclosed. The moisture curable polyurethane hot melt adhesive composition includes an isocyanate-terminated polyurethane prepolymer that is the reaction product of a diisocyanate monomer component th...

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Bibliographische Detailangaben
Hauptverfasser: CARLSON, Brian W, VAN DYKE, Daniel J, GURR, Matthias E, PAUL, Rituparna, DAS, Sudipto
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE
ADHESIVES
CHEMISTRY
COMPOSITIONS BASED THEREON
DYES
MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
METALLURGY
MISCELLANEOUS APPLICATIONS OF MATERIALS
MISCELLANEOUS COMPOSITIONS
NATURAL RESINS
NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL
ORGANIC MACROMOLECULAR COMPOUNDS
PAINTS
POLISHES
THEIR PREPARATION OR CHEMICAL WORKING-UP
USE OF MATERIALS AS ADHESIVES
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Beschreibung
Zusammenfassung:A moisture curable polyurethane hot melt adhesive composition and a process for making the same are disclosed. The moisture curable polyurethane hot melt adhesive composition includes an isocyanate-terminated polyurethane prepolymer that is the reaction product of a diisocyanate monomer component that includes at least 20% by weight asymmetrical diisocyanate monomer based on the weight of the diisocyanate monomer component and symmetrical diisocyanate monomer, at least one polyol having a number average molecular weight greater than 1000 g/mole, a monofunctional compound that includes one isocyanate-reactive group and has a molecular weight no greater than 400 g/mole, and a multifunctional compound that includes at least two isocyanate-reactive groups and has a molecular weight no greater than 400 g/mole.