LOW-SHRINKABLE FINE POROUS FILM AND METHOD FOR PRODUCING THE SAME
PROBLEM TO BE SOLVED: To obtain a safer low-shrinkable microporous film having a low shrinkage percentage even under a high-temperature condition, excellent basic characteristics of film such as air permeability, etc., to provide a method for producing the same, to obtain a separator for a battery c...
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| creator | EMORI HIDEYUKI YAMAGUCHI MUTSUKO NOMI TOSHISUKE ICHIKAWA TOMOAKI |
| description | PROBLEM TO BE SOLVED: To obtain a safer low-shrinkable microporous film having a low shrinkage percentage even under a high-temperature condition, excellent basic characteristics of film such as air permeability, etc., to provide a method for producing the same, to obtain a separator for a battery comprising the low-shrinkable microporous film and a lithium ion secondary battery obtained by using the low-shrinkable microporous film as a separator for a battery. SOLUTION: This low-shrinkable microporous film has |
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| fullrecord | <record><control><sourceid>epo_EVB</sourceid><recordid>TN_cdi_epo_espacenet_JP2003119306A</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>JP2003119306A</sourcerecordid><originalsourceid>FETCH-epo_espacenet_JP2003119306A3</originalsourceid><addsrcrecordid>eNrjZHD08Q_XDfYI8vTzdnTycVVw8_RzVQjwD_IPDQayfXwVHP1cFHxdQzz8XRTc_IMUAoL8XUKdPf3cFUI8XBWCHX1deRhY0xJzilN5oTQ3g5Kba4izh25qQX58anFBYnJqXmpJvFeAkYGBsaGhpbGBmaMxUYoAD7krDw</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>patent</recordtype></control><display><type>patent</type><title>LOW-SHRINKABLE FINE POROUS FILM AND METHOD FOR PRODUCING THE SAME</title><source>esp@cenet</source><creator>EMORI HIDEYUKI ; YAMAGUCHI MUTSUKO ; NOMI TOSHISUKE ; ICHIKAWA TOMOAKI</creator><creatorcontrib>EMORI HIDEYUKI ; YAMAGUCHI MUTSUKO ; NOMI TOSHISUKE ; ICHIKAWA TOMOAKI</creatorcontrib><description>PROBLEM TO BE SOLVED: To obtain a safer low-shrinkable microporous film having a low shrinkage percentage even under a high-temperature condition, excellent basic characteristics of film such as air permeability, etc., to provide a method for producing the same, to obtain a separator for a battery comprising the low-shrinkable microporous film and a lithium ion secondary battery obtained by using the low-shrinkable microporous film as a separator for a battery. SOLUTION: This low-shrinkable microporous film has <1% shrinkage percentage in one direction after being allowed to stand in an atmosphere at 105 deg.C under a tension-free condition for one hour and <1% shrinkage percentage in the same direction after being allowed to stand in an atmosphere at 140 deg.C in a tension-free condition for one hour. This method for producing a low-shrinkable microporous film comprises a process for fixing a rolled sheetlike formed material in one direction (x-axis direction) while drawing the material in a direction (y-axis direction) perpendicular to the x-axis direction by three times or more and shrinking the length of the film in the x-axis direction by 20-80% in the fixed state of the film in the y-axis direction. This separator for a battery comprises the low-shrinkable microporous film. This lithium ion secondary battery is obtained by using the low-shrinkable microporous film as a separator for a battery.</description><edition>7</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>2003</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=20030423&DB=EPODOC&CC=JP&NR=2003119306A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20030423&DB=EPODOC&CC=JP&NR=2003119306A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>EMORI HIDEYUKI</creatorcontrib><creatorcontrib>YAMAGUCHI MUTSUKO</creatorcontrib><creatorcontrib>NOMI TOSHISUKE</creatorcontrib><creatorcontrib>ICHIKAWA TOMOAKI</creatorcontrib><title>LOW-SHRINKABLE FINE POROUS FILM AND METHOD FOR PRODUCING THE SAME</title><description>PROBLEM TO BE SOLVED: To obtain a safer low-shrinkable microporous film having a low shrinkage percentage even under a high-temperature condition, excellent basic characteristics of film such as air permeability, etc., to provide a method for producing the same, to obtain a separator for a battery comprising the low-shrinkable microporous film and a lithium ion secondary battery obtained by using the low-shrinkable microporous film as a separator for a battery. SOLUTION: This low-shrinkable microporous film has <1% shrinkage percentage in one direction after being allowed to stand in an atmosphere at 105 deg.C under a tension-free condition for one hour and <1% shrinkage percentage in the same direction after being allowed to stand in an atmosphere at 140 deg.C in a tension-free condition for one hour. This method for producing a low-shrinkable microporous film comprises a process for fixing a rolled sheetlike formed material in one direction (x-axis direction) while drawing the material in a direction (y-axis direction) perpendicular to the x-axis direction by three times or more and shrinking the length of the film in the x-axis direction by 20-80% in the fixed state of the film in the y-axis direction. This separator for a battery comprises the low-shrinkable microporous film. This lithium ion secondary battery is obtained by using the low-shrinkable microporous film as a separator for a battery.</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>2003</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZHD08Q_XDfYI8vTzdnTycVVw8_RzVQjwD_IPDQayfXwVHP1cFHxdQzz8XRTc_IMUAoL8XUKdPf3cFUI8XBWCHX1deRhY0xJzilN5oTQ3g5Kba4izh25qQX58anFBYnJqXmpJvFeAkYGBsaGhpbGBmaMxUYoAD7krDw</recordid><startdate>20030423</startdate><enddate>20030423</enddate><creator>EMORI HIDEYUKI</creator><creator>YAMAGUCHI MUTSUKO</creator><creator>NOMI TOSHISUKE</creator><creator>ICHIKAWA TOMOAKI</creator><scope>EVB</scope></search><sort><creationdate>20030423</creationdate><title>LOW-SHRINKABLE FINE POROUS FILM AND METHOD FOR PRODUCING THE SAME</title><author>EMORI HIDEYUKI ; YAMAGUCHI MUTSUKO ; NOMI TOSHISUKE ; ICHIKAWA TOMOAKI</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_JP2003119306A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>2003</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>EMORI HIDEYUKI</creatorcontrib><creatorcontrib>YAMAGUCHI MUTSUKO</creatorcontrib><creatorcontrib>NOMI TOSHISUKE</creatorcontrib><creatorcontrib>ICHIKAWA TOMOAKI</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>EMORI HIDEYUKI</au><au>YAMAGUCHI MUTSUKO</au><au>NOMI TOSHISUKE</au><au>ICHIKAWA TOMOAKI</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>LOW-SHRINKABLE FINE POROUS FILM AND METHOD FOR PRODUCING THE SAME</title><date>2003-04-23</date><risdate>2003</risdate><abstract>PROBLEM TO BE SOLVED: To obtain a safer low-shrinkable microporous film having a low shrinkage percentage even under a high-temperature condition, excellent basic characteristics of film such as air permeability, etc., to provide a method for producing the same, to obtain a separator for a battery comprising the low-shrinkable microporous film and a lithium ion secondary battery obtained by using the low-shrinkable microporous film as a separator for a battery. SOLUTION: This low-shrinkable microporous film has <1% shrinkage percentage in one direction after being allowed to stand in an atmosphere at 105 deg.C under a tension-free condition for one hour and <1% shrinkage percentage in the same direction after being allowed to stand in an atmosphere at 140 deg.C in a tension-free condition for one hour. This method for producing a low-shrinkable microporous film comprises a process for fixing a rolled sheetlike formed material in one direction (x-axis direction) while drawing the material in a direction (y-axis direction) perpendicular to the x-axis direction by three times or more and shrinking the length of the film in the x-axis direction by 20-80% in the fixed state of the film in the y-axis direction. This separator for a battery comprises the low-shrinkable microporous film. This lithium ion secondary battery is obtained by using the low-shrinkable microporous film as a separator for a battery.</abstract><edition>7</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 | LOW-SHRINKABLE FINE POROUS FILM AND METHOD FOR PRODUCING THE SAME |
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