POLYURETHANE FOAM WITH INTEGRAL SKIN AND METHOD FOR PRODUCING THE SAME

PROBLEM TO BE SOLVED: To obtain low-density integral skin foam having excellent physical properties such as impact resistance, etc., and to provide a method for producing the same. SOLUTION: The method for producing integral skin foam comprises using a specific blowing agent substantially free from...

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Bibliographische Detailangaben
Hauptverfasser:	OKUBO KAZUHIKO, YONEYAMA MASAHIRO
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G CHEMISTRY COMPOSITIONS BASED THEREON GENERAL PROCESSES OF COMPOUNDING MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-UP WORKING-UP
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To obtain low-density integral skin foam having excellent physical properties such as impact resistance, etc., and to provide a method for producing the same. SOLUTION: The method for producing integral skin foam comprises using a specific blowing agent substantially free from water and/or a polyoxyalkylene polyol having 15-45 mgKOH/g hydroxy value and ≤0.03 meq/g total unsaturation degree. The integral skin foam having ≤0.55 g/cm3foam density and excellent impact resistance is obtained without prolonging a demolding time. COPYRIGHT: (C)2004,JPO&NCIPI