IMPACT ABSORBING FOAM

IMPACT ABSORBING FOAM

PROBLEM TO BE SOLVED: To provide a thin type impact absorbing foam excellent in impact absorbing property.SOLUTION: The impact absorbing foam includes a foam which has an open-cell structure with through holes between neighboring spherical bubbles, and which has a thickness of 0.01 to 1.0 mm. The fo...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: HYODO TOMOKI, OKEYUI TAKUJI, HIRAO AKIRA
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 BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
THEIR PREPARATION OR CHEMICAL WORKING-UP
WORKING-UP
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Beschreibung
Zusammenfassung:PROBLEM TO BE SOLVED: To provide a thin type impact absorbing foam excellent in impact absorbing property.SOLUTION: The impact absorbing foam includes a foam which has an open-cell structure with through holes between neighboring spherical bubbles, and which has a thickness of 0.01 to 1.0 mm. The foam contains a hydrophilic polyurethane polymer. The average pore diameter of spherical bubbles is less than 20 μm, the average pore diameter of the through holes is 5 μm or less, and the impact absorbing rate is 30% or more at 5% compression ratio, in a pendulum test.