Battery separator
A method for producing a battery separator is disclosed. The method comprises applying a coating of an ethylenically unsaturated monomer to the fibers of a non-woven sheet and polymerizing the monomer in situ on the fiber surfaces. The non-woven sheet is from 50 to 3000 microns thick, and is compose...
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| creator | CHOI WAI M |
| description | A method for producing a battery separator is disclosed. The method comprises applying a coating of an ethylenically unsaturated monomer to the fibers of a non-woven sheet and polymerizing the monomer in situ on the fiber surfaces. The non-woven sheet is from 50 to 3000 microns thick, and is composed of polyolefin fibers having an average fiber diameter from 0.5 to 5 microns and a surface area from 0.2 to 30 square meters per gram. The ethylenically unsaturated monomer is polymerizable to a thermoplastic polymer which is hydrophilic as a consequence of containing COOH, OH, sulfonyl, sulfonic acid or carbonyl groups, or a monomer which has one of the following formulas:In the foregoing formulas, R is an aliphatic or aromatic hydrocarbon group having from 2 to 8 carbon atoms, R4 is hydrogen or methyl, n is an integer from 2 to 15, and Xis a cation selected from the group consisting of hydrogen, alkali metal cations, alkaline earth cations, cations of the transition metals Sc, Ti, V, Cr, Mn, Fe, Co, Ni, Cu and Zn, and ammonium cations of the following formula:each of R5R6, R7 and R8 is hydrogen, alkyl, alkenyl, cycloalkyl or cycloaklkenylene, and not more than one is a bivalent group bonded to Nand by removing two hydrogens from an alkane, an alkene, a cycloalkane or a cycloalkene; the total number of carbons in R5 R6, R7 and R8 does not exceed 21. |
| format | Patent |
| fullrecord | <record><control><sourceid>epo_EVB</sourceid><recordid>TN_cdi_epo_espacenet_US6680144B2</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>US6680144B2</sourcerecordid><originalsourceid>FETCH-epo_espacenet_US6680144B23</originalsourceid><addsrcrecordid>eNrjZBB0SiwpSS2qVChOLUgsSizJL-JhYE1LzClO5YXS3AwKbq4hzh66qQX58anFBYnJqXmpJfGhwWZmFgaGJiZORsZEKAEAqc8fkA</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>patent</recordtype></control><display><type>patent</type><title>Battery separator</title><source>esp@cenet</source><creator>CHOI WAI M</creator><creatorcontrib>CHOI WAI M</creatorcontrib><description>A method for producing a battery separator is disclosed. The method comprises applying a coating of an ethylenically unsaturated monomer to the fibers of a non-woven sheet and polymerizing the monomer in situ on the fiber surfaces. The non-woven sheet is from 50 to 3000 microns thick, and is composed of polyolefin fibers having an average fiber diameter from 0.5 to 5 microns and a surface area from 0.2 to 30 square meters per gram. The ethylenically unsaturated monomer is polymerizable to a thermoplastic polymer which is hydrophilic as a consequence of containing COOH, OH, sulfonyl, sulfonic acid or carbonyl groups, or a monomer which has one of the following formulas:In the foregoing formulas, R is an aliphatic or aromatic hydrocarbon group having from 2 to 8 carbon atoms, R4 is hydrogen or methyl, n is an integer from 2 to 15, and X<+ >is a cation selected from the group consisting of hydrogen, alkali metal cations, alkaline earth cations, cations of the transition metals Sc, Ti, V, Cr, Mn, Fe, Co, Ni, Cu and Zn, and ammonium cations of the following formula:each of R5R6, R7 and R8 is hydrogen, alkyl, alkenyl, cycloalkyl or cycloaklkenylene, and not more than one is a bivalent group bonded to N<+ >and by removing two hydrogens from an alkane, an alkene, a cycloalkane or a cycloalkene; the total number of carbons in R5 R6, R7 and R8 does not exceed 21.</description><edition>7</edition><language>eng</language><subject>AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G ; BASIC ELECTRIC ELEMENTS ; BRAIDING ; CHEMISTRY ; COMPOSITIONS BASED THEREON ; COTTON-WOOL ; ELECTRICITY ; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS,NON-WOVEN FABRICS ; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR ; GENERAL PROCESSES OF COMPOUNDING ; KNITTING ; LACE-MAKING ; LAUNDERING ; LAYERED PRODUCTS ; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM ; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS ; MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARYMATERIAL ; METALLURGY ; NON-WOVEN FABRICS ; ORGANIC MACROMOLECULAR COMPOUNDS ; PERFORMING OPERATIONS ; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY ; TEXTILES ; THEIR PREPARATION OR CHEMICAL WORKING-UP ; TRANSPORTING ; TREATMENT OF TEXTILES OR THE LIKE ; TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS,FABRICS, FEATHERS, OR FIBROUS GOODS MADE FROM SUCH MATERIALS ; TRIMMINGS ; WADDING ; WORKING-UP</subject><creationdate>2004</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=20040120&DB=EPODOC&CC=US&NR=6680144B2$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25543,76294</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20040120&DB=EPODOC&CC=US&NR=6680144B2$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>CHOI WAI M</creatorcontrib><title>Battery separator</title><description>A method for producing a battery separator is disclosed. The method comprises applying a coating of an ethylenically unsaturated monomer to the fibers of a non-woven sheet and polymerizing the monomer in situ on the fiber surfaces. The non-woven sheet is from 50 to 3000 microns thick, and is composed of polyolefin fibers having an average fiber diameter from 0.5 to 5 microns and a surface area from 0.2 to 30 square meters per gram. The ethylenically unsaturated monomer is polymerizable to a thermoplastic polymer which is hydrophilic as a consequence of containing COOH, OH, sulfonyl, sulfonic acid or carbonyl groups, or a monomer which has one of the following formulas:In the foregoing formulas, R is an aliphatic or aromatic hydrocarbon group having from 2 to 8 carbon atoms, R4 is hydrogen or methyl, n is an integer from 2 to 15, and X<+ >is a cation selected from the group consisting of hydrogen, alkali metal cations, alkaline earth cations, cations of the transition metals Sc, Ti, V, Cr, Mn, Fe, Co, Ni, Cu and Zn, and ammonium cations of the following formula:each of R5R6, R7 and R8 is hydrogen, alkyl, alkenyl, cycloalkyl or cycloaklkenylene, and not more than one is a bivalent group bonded to N<+ >and by removing two hydrogens from an alkane, an alkene, a cycloalkane or a cycloalkene; the total number of carbons in R5 R6, R7 and R8 does not exceed 21.</description><subject>AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G</subject><subject>BASIC ELECTRIC ELEMENTS</subject><subject>BRAIDING</subject><subject>CHEMISTRY</subject><subject>COMPOSITIONS BASED THEREON</subject><subject>COTTON-WOOL</subject><subject>ELECTRICITY</subject><subject>FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS,NON-WOVEN FABRICS</subject><subject>FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR</subject><subject>GENERAL PROCESSES OF COMPOUNDING</subject><subject>KNITTING</subject><subject>LACE-MAKING</subject><subject>LAUNDERING</subject><subject>LAYERED PRODUCTS</subject><subject>LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM</subject><subject>MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS</subject><subject>MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARYMATERIAL</subject><subject>METALLURGY</subject><subject>NON-WOVEN FABRICS</subject><subject>ORGANIC MACROMOLECULAR COMPOUNDS</subject><subject>PERFORMING OPERATIONS</subject><subject>PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY</subject><subject>TEXTILES</subject><subject>THEIR PREPARATION OR CHEMICAL WORKING-UP</subject><subject>TRANSPORTING</subject><subject>TREATMENT OF TEXTILES OR THE LIKE</subject><subject>TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS,FABRICS, FEATHERS, OR FIBROUS GOODS MADE FROM SUCH MATERIALS</subject><subject>TRIMMINGS</subject><subject>WADDING</subject><subject>WORKING-UP</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2004</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZBB0SiwpSS2qVChOLUgsSizJL-JhYE1LzClO5YXS3AwKbq4hzh66qQX58anFBYnJqXmpJfGhwWZmFgaGJiZORsZEKAEAqc8fkA</recordid><startdate>20040120</startdate><enddate>20040120</enddate><creator>CHOI WAI M</creator><scope>EVB</scope></search><sort><creationdate>20040120</creationdate><title>Battery separator</title><author>CHOI WAI M</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_US6680144B23</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>2004</creationdate><topic>AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G</topic><topic>BASIC ELECTRIC ELEMENTS</topic><topic>BRAIDING</topic><topic>CHEMISTRY</topic><topic>COMPOSITIONS BASED THEREON</topic><topic>COTTON-WOOL</topic><topic>ELECTRICITY</topic><topic>FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS,NON-WOVEN FABRICS</topic><topic>FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR</topic><topic>GENERAL PROCESSES OF COMPOUNDING</topic><topic>KNITTING</topic><topic>LACE-MAKING</topic><topic>LAUNDERING</topic><topic>LAYERED PRODUCTS</topic><topic>LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM</topic><topic>MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS</topic><topic>MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARYMATERIAL</topic><topic>METALLURGY</topic><topic>NON-WOVEN FABRICS</topic><topic>ORGANIC MACROMOLECULAR COMPOUNDS</topic><topic>PERFORMING OPERATIONS</topic><topic>PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY</topic><topic>TEXTILES</topic><topic>THEIR PREPARATION OR CHEMICAL WORKING-UP</topic><topic>TRANSPORTING</topic><topic>TREATMENT OF TEXTILES OR THE LIKE</topic><topic>TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS,FABRICS, FEATHERS, OR FIBROUS GOODS MADE FROM SUCH MATERIALS</topic><topic>TRIMMINGS</topic><topic>WADDING</topic><topic>WORKING-UP</topic><toplevel>online_resources</toplevel><creatorcontrib>CHOI WAI M</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>CHOI WAI M</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Battery separator</title><date>2004-01-20</date><risdate>2004</risdate><abstract>A method for producing a battery separator is disclosed. The method comprises applying a coating of an ethylenically unsaturated monomer to the fibers of a non-woven sheet and polymerizing the monomer in situ on the fiber surfaces. The non-woven sheet is from 50 to 3000 microns thick, and is composed of polyolefin fibers having an average fiber diameter from 0.5 to 5 microns and a surface area from 0.2 to 30 square meters per gram. The ethylenically unsaturated monomer is polymerizable to a thermoplastic polymer which is hydrophilic as a consequence of containing COOH, OH, sulfonyl, sulfonic acid or carbonyl groups, or a monomer which has one of the following formulas:In the foregoing formulas, R is an aliphatic or aromatic hydrocarbon group having from 2 to 8 carbon atoms, R4 is hydrogen or methyl, n is an integer from 2 to 15, and X<+ >is a cation selected from the group consisting of hydrogen, alkali metal cations, alkaline earth cations, cations of the transition metals Sc, Ti, V, Cr, Mn, Fe, Co, Ni, Cu and Zn, and ammonium cations of the following formula:each of R5R6, R7 and R8 is hydrogen, alkyl, alkenyl, cycloalkyl or cycloaklkenylene, and not more than one is a bivalent group bonded to N<+ >and by removing two hydrogens from an alkane, an alkene, a cycloalkane or a cycloalkene; the total number of carbons in R5 R6, R7 and R8 does not exceed 21.</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 BRAIDING CHEMISTRY COMPOSITIONS BASED THEREON COTTON-WOOL ELECTRICITY FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS,NON-WOVEN FABRICS FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR GENERAL PROCESSES OF COMPOUNDING KNITTING LACE-MAKING LAUNDERING LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARYMATERIAL METALLURGY NON-WOVEN FABRICS ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY TEXTILES THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING TREATMENT OF TEXTILES OR THE LIKE TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS,FABRICS, FEATHERS, OR FIBROUS GOODS MADE FROM SUCH MATERIALS TRIMMINGS WADDING WORKING-UP |
| title | Battery separator |
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