POROUS RESIN SHEET AND MANUFACTURING METHOD THEREFOR

PROBLEM TO BE SOLVED: To provide a porous resin sheet having continuous bubbles that can be easily manufactured without using a large amount of organic solvents. SOLUTION: A filler such as calcium carbonate surface-treated with a hydrophilic polyhydric alcohol such as polypropylene glycol is mixed i...

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Bibliographische Detailangaben
Hauptverfasser:	IIJIMA NOBUAKI, INAGA TAKASHI, MATSUMOTO TAKESHI
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G CHEMISTRY COMPOSITIONS BASED THEREON GENERAL PROCESSES OF COMPOUNDING 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 porous resin sheet having continuous bubbles that can be easily manufactured without using a large amount of organic solvents. SOLUTION: A filler such as calcium carbonate surface-treated with a hydrophilic polyhydric alcohol such as polypropylene glycol is mixed into a thermoplastic polymer such as a polyethylene resin, and the mixture is formed into a sheet. After the sheet is subjected to a rolling treatment by passing it through rolls, it is immersed into an aqueous acidic solution such as hydrochloric acid so as to dissolve and remove the filler therefrom, leaving a porous sheet. COPYRIGHT: (C)2005,JPO&NCIPI