THERMOSETTING URETHANE ELASTOMER-FORMING COMPOSITION AND ITS MANUFACTURING METHOD

PROBLEM TO BE SOLVED: To solve the problem that the conventional casting polyurethane elastomer compositions have not satisfied rebound resilience, tension set, and compression set at the same time although good rebound resilience, tension set, and compression set are required in constituting parts...

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Hauptverfasser:	KOYANAGI TEPPEI, NOMURA KOJI
Format:	Patent
Sprache:	eng
Schlagworte:	BEARINGS BLASTING CHEMISTRY COMPOSITIONS BASED THEREON ELEMENTS OR CRANKSHAFT MECHANISMS ENGINEERING ELEMENTS AND UNITS FLEXIBLE SHAFTS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LIGHTING MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS MECHANICAL ENGINEERING METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FORVEHICLES ROTARY BODIES OTHER THAN GEARING ELEMENTS SHAFTS THEIR PREPARATION OR CHEMICAL WORKING-UP THERMAL INSULATION IN GENERAL TRANSPORTING VEHICLES IN GENERAL WEAPONS WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILARDEVICES FOR VEHICLES
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To solve the problem that the conventional casting polyurethane elastomer compositions have not satisfied rebound resilience, tension set, and compression set at the same time although good rebound resilience, tension set, and compression set are required in constituting parts of an industrial device such as a compact roll represented by an automotive glass run and a paper feed roll. SOLUTION: The resultant casting polyurethane elastomer composition can possess excellent rebound resilience and tension set by using a casting polyurethane elastomer composition comprising an isocyanate group-terminated prepolymer, a hydroxyl group-containing polymeric polyol as a curing agent, a polyesterpolyol having a molecular weight of 500-2,500 and a nominal average number of functional groups of 3, and a bifunctional glycol having a molecular weight of less than 150. This composition can be used in an automotive glass run, a roll member and the like. COPYRIGHT: (C)2008,JPO&INPIT