HYDROPHILIC POLYOLEFIN-BASED POLYMERIC POROUS MATERIAL, ITS PRODUCTION AND APPLICATION THEREOF TO BATTERY SEPARATOR
PROBLEM TO BE SOLVED: To produce the subject porous material, having sufficient hydrophilicity and durability in alkalis and useful for battery separators, etc., by bringing a polymeric porous material into contact with a fluorine gas-containing gas, reacting the porous material therewith and then c...
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| creator | KASAI TOSHIKAZU WATANABE AKIRA OSHIMA FUMIICHIRO |
| description | PROBLEM TO BE SOLVED: To produce the subject porous material, having sufficient hydrophilicity and durability in alkalis and useful for battery separators, etc., by bringing a polymeric porous material into contact with a fluorine gas-containing gas, reacting the porous material therewith and then carrying out the dipping treatment of the resultant material in a hot aqueous solution of an alkali. SOLUTION: This hydrophilic polyolefin-based polymeric porous material is produced by bringing a polyolefin-based polymeric porous material, preferably a nonwoven polyolefin fabric into contact with a fluorine gas-containing gas, reacting the porous material therewith, subsequently carrying out the dipping and treatment of the resultant polyolefin-based polymeric porous material in a hot aqueous solution of an alkali, e. g. an aqueous solution of potassium hydroxide at 50-120 deg.C for >=30min. For example, a mixed gas containing oxygen gas, and concretely comprising 1.3vol.% fluorine gas, 86.8vol.% oxygen gas and 11.9vol.% nitrogen gas is preferably used, and the polyolefin-based polymeric porous material is preferably brought into contact with the mixed gas at 0-80 deg.C for a time within the range of 5 sec to 1hr. |
| format | Patent |
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SOLUTION: This hydrophilic polyolefin-based polymeric porous material is produced by bringing a polyolefin-based polymeric porous material, preferably a nonwoven polyolefin fabric into contact with a fluorine gas-containing gas, reacting the porous material therewith, subsequently carrying out the dipping and treatment of the resultant polyolefin-based polymeric porous material in a hot aqueous solution of an alkali, e. g. an aqueous solution of potassium hydroxide at 50-120 deg.C for >=30min. For example, a mixed gas containing oxygen gas, and concretely comprising 1.3vol.% fluorine gas, 86.8vol.% oxygen gas and 11.9vol.% nitrogen gas is preferably used, and the polyolefin-based polymeric porous material is preferably brought into contact with the mixed gas at 0-80 deg.C for a time within the range of 5 sec to 1hr.</description><edition>6</edition><language>eng</language><subject>AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G ; BASIC ELECTRIC ELEMENTS ; CHEMISTRY ; COMPOSITIONS BASED THEREON ; ELECTRICITY ; GENERAL PROCESSES OF COMPOUNDING ; METALLURGY ; ORGANIC MACROMOLECULAR COMPOUNDS ; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY ; THEIR PREPARATION OR CHEMICAL WORKING-UP ; WORKING-UP</subject><creationdate>1997</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19970513&DB=EPODOC&CC=JP&NR=H09124813A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25543,76293</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19970513&DB=EPODOC&CC=JP&NR=H09124813A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>KASAI TOSHIKAZU</creatorcontrib><creatorcontrib>WATANABE AKIRA</creatorcontrib><creatorcontrib>OSHIMA FUMIICHIRO</creatorcontrib><title>HYDROPHILIC POLYOLEFIN-BASED POLYMERIC POROUS MATERIAL, ITS PRODUCTION AND APPLICATION THEREOF TO BATTERY SEPARATOR</title><description>PROBLEM TO BE SOLVED: To produce the subject porous material, having sufficient hydrophilicity and durability in alkalis and useful for battery separators, etc., by bringing a polymeric porous material into contact with a fluorine gas-containing gas, reacting the porous material therewith and then carrying out the dipping treatment of the resultant material in a hot aqueous solution of an alkali. SOLUTION: This hydrophilic polyolefin-based polymeric porous material is produced by bringing a polyolefin-based polymeric porous material, preferably a nonwoven polyolefin fabric into contact with a fluorine gas-containing gas, reacting the porous material therewith, subsequently carrying out the dipping and treatment of the resultant polyolefin-based polymeric porous material in a hot aqueous solution of an alkali, e. g. an aqueous solution of potassium hydroxide at 50-120 deg.C for >=30min. For example, a mixed gas containing oxygen gas, and concretely comprising 1.3vol.% fluorine gas, 86.8vol.% oxygen gas and 11.9vol.% nitrogen gas is preferably used, and the polyolefin-based polymeric porous material is preferably brought into contact with the mixed gas at 0-80 deg.C for a time within the range of 5 sec to 1hr.</description><subject>AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G</subject><subject>BASIC ELECTRIC ELEMENTS</subject><subject>CHEMISTRY</subject><subject>COMPOSITIONS BASED THEREON</subject><subject>ELECTRICITY</subject><subject>GENERAL PROCESSES OF COMPOUNDING</subject><subject>METALLURGY</subject><subject>ORGANIC MACROMOLECULAR COMPOUNDS</subject><subject>PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY</subject><subject>THEIR PREPARATION OR CHEMICAL WORKING-UP</subject><subject>WORKING-UP</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>1997</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNqNjL8OgjAQxlkcjPoO5y6JiIOOBy1pTeGa6zEwEWLqZJQE3z8S4gM4ffl9_9bJZDrF5I11tgRPriOnK9ukBQatFqPWvERMbYAaZUZ0B7ASwDOpthRLDWCjAL2fX3BhMZo1VSAEBco86iBoj4xCvE1Wj-E5xd1PN8m-0lKaNI7vPk7jcI-v-Olv3hyv2el8yXLM_-l8AeHXOXE</recordid><startdate>19970513</startdate><enddate>19970513</enddate><creator>KASAI TOSHIKAZU</creator><creator>WATANABE AKIRA</creator><creator>OSHIMA FUMIICHIRO</creator><scope>EVB</scope></search><sort><creationdate>19970513</creationdate><title>HYDROPHILIC POLYOLEFIN-BASED POLYMERIC POROUS MATERIAL, ITS PRODUCTION AND APPLICATION THEREOF TO BATTERY SEPARATOR</title><author>KASAI TOSHIKAZU ; WATANABE AKIRA ; OSHIMA FUMIICHIRO</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_JPH09124813A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>1997</creationdate><topic>AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G</topic><topic>BASIC ELECTRIC ELEMENTS</topic><topic>CHEMISTRY</topic><topic>COMPOSITIONS BASED THEREON</topic><topic>ELECTRICITY</topic><topic>GENERAL PROCESSES OF COMPOUNDING</topic><topic>METALLURGY</topic><topic>ORGANIC MACROMOLECULAR COMPOUNDS</topic><topic>PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY</topic><topic>THEIR PREPARATION OR CHEMICAL WORKING-UP</topic><topic>WORKING-UP</topic><toplevel>online_resources</toplevel><creatorcontrib>KASAI TOSHIKAZU</creatorcontrib><creatorcontrib>WATANABE AKIRA</creatorcontrib><creatorcontrib>OSHIMA FUMIICHIRO</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>KASAI TOSHIKAZU</au><au>WATANABE AKIRA</au><au>OSHIMA FUMIICHIRO</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>HYDROPHILIC POLYOLEFIN-BASED POLYMERIC POROUS MATERIAL, ITS PRODUCTION AND APPLICATION THEREOF TO BATTERY SEPARATOR</title><date>1997-05-13</date><risdate>1997</risdate><abstract>PROBLEM TO BE SOLVED: To produce the subject porous material, having sufficient hydrophilicity and durability in alkalis and useful for battery separators, etc., by bringing a polymeric porous material into contact with a fluorine gas-containing gas, reacting the porous material therewith and then carrying out the dipping treatment of the resultant material in a hot aqueous solution of an alkali. SOLUTION: This hydrophilic polyolefin-based polymeric porous material is produced by bringing a polyolefin-based polymeric porous material, preferably a nonwoven polyolefin fabric into contact with a fluorine gas-containing gas, reacting the porous material therewith, subsequently carrying out the dipping and treatment of the resultant polyolefin-based polymeric porous material in a hot aqueous solution of an alkali, e. g. an aqueous solution of potassium hydroxide at 50-120 deg.C for >=30min. For example, a mixed gas containing oxygen gas, and concretely comprising 1.3vol.% fluorine gas, 86.8vol.% oxygen gas and 11.9vol.% nitrogen gas is preferably used, and the polyolefin-based polymeric porous material is preferably brought into contact with the mixed gas at 0-80 deg.C for a time within the range of 5 sec to 1hr.</abstract><edition>6</edition><oa>free_for_read</oa></addata></record> |
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| subjects | AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G BASIC ELECTRIC ELEMENTS CHEMISTRY COMPOSITIONS BASED THEREON ELECTRICITY GENERAL PROCESSES OF COMPOUNDING METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY THEIR PREPARATION OR CHEMICAL WORKING-UP WORKING-UP |
| title | HYDROPHILIC POLYOLEFIN-BASED POLYMERIC POROUS MATERIAL, ITS PRODUCTION AND APPLICATION THEREOF TO BATTERY SEPARATOR |
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