Electretized sheet and filter
The electret-treated sheet includes: a core layer (A) which is a porous film containing at least a thermoplastic resin; a surface layer (X) disposed on one side of the core layer (A); and a back surface layer (Y) disposed on the other side of the core layer (A), the surface layer (X) and the back su...
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| creator | Sugamata, Yutaro Koike, Hiroshi Iida, Seiichiro |
| description | The electret-treated sheet includes: a core layer (A) which is a porous film containing at least a thermoplastic resin; a surface layer (X) disposed on one side of the core layer (A); and a back surface layer (Y) disposed on the other side of the core layer (A), the surface layer (X) and the back surface layer (Y) each having a charged outermost surface, wherein the electret-treated sheet has a water vapor permeability coefficient of 0.1 to 2.5 g·mm/m2·24 hr; the core layer (A) has a pore aspect ratio of 5 to 50 and an average pore height of 2.5 to 15 μm; the surface layer (X) and the back surface layer (Y) each have a thickness of 5 to 200 μm; and the surface layer (X) includes a heat seal layer (B) including the outermost surface, wherein the heat seal layer (B) has a melting point of 50 to 140° C. |
| format | Patent |
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the core layer (A) has a pore aspect ratio of 5 to 50 and an average pore height of 2.5 to 15 μm; the surface layer (X) and the back surface layer (Y) each have a thickness of 5 to 200 μm; and the surface layer (X) includes a heat seal layer (B) including the outermost surface, wherein the heat seal layer (B) has a melting point of 50 to 140° C.</description><language>eng</language><subject>LAYERED PRODUCTS ; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM ; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLIDMATERIALS OR FLUIDS ; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROMSOLID MATERIALS OR FLUIDS ; PERFORMING OPERATIONS ; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL ; SEPARATION ; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS ; SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATICTABLES OR JIGS ; TRANSPORTING</subject><creationdate>2022</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=20220906&DB=EPODOC&CC=US&NR=11433333B2$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,778,883,25551,76304</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20220906&DB=EPODOC&CC=US&NR=11433333B2$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>Sugamata, Yutaro</creatorcontrib><creatorcontrib>Koike, Hiroshi</creatorcontrib><creatorcontrib>Iida, Seiichiro</creatorcontrib><title>Electretized sheet and filter</title><description>The electret-treated sheet includes: a core layer (A) which is a porous film containing at least a thermoplastic resin; a surface layer (X) disposed on one side of the core layer (A); and a back surface layer (Y) disposed on the other side of the core layer (A), the surface layer (X) and the back surface layer (Y) each having a charged outermost surface, wherein the electret-treated sheet has a water vapor permeability coefficient of 0.1 to 2.5 g·mm/m2·24 hr; the core layer (A) has a pore aspect ratio of 5 to 50 and an average pore height of 2.5 to 15 μm; the surface layer (X) and the back surface layer (Y) each have a thickness of 5 to 200 μm; and the surface layer (X) includes a heat seal layer (B) including the outermost surface, wherein the heat seal layer (B) has a melting point of 50 to 140° C.</description><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>MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLIDMATERIALS OR FLUIDS</subject><subject>MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROMSOLID MATERIALS OR FLUIDS</subject><subject>PERFORMING OPERATIONS</subject><subject>PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL</subject><subject>SEPARATION</subject><subject>SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS</subject><subject>SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATICTABLES OR JIGS</subject><subject>TRANSPORTING</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2022</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZJB1zUlNLilKLcmsSk1RKM5ITS1RSMxLUUjLzClJLeJhYE1LzClO5YXS3AyKbq4hzh66qQX58anFBYnJqXmpJfGhwYaGJsYg4GRkTIwaANBbJDg</recordid><startdate>20220906</startdate><enddate>20220906</enddate><creator>Sugamata, Yutaro</creator><creator>Koike, Hiroshi</creator><creator>Iida, Seiichiro</creator><scope>EVB</scope></search><sort><creationdate>20220906</creationdate><title>Electretized sheet and filter</title><author>Sugamata, Yutaro ; Koike, Hiroshi ; Iida, Seiichiro</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_US11433333B23</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>2022</creationdate><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>MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLIDMATERIALS OR FLUIDS</topic><topic>MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROMSOLID MATERIALS OR FLUIDS</topic><topic>PERFORMING OPERATIONS</topic><topic>PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL</topic><topic>SEPARATION</topic><topic>SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS</topic><topic>SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATICTABLES OR JIGS</topic><topic>TRANSPORTING</topic><toplevel>online_resources</toplevel><creatorcontrib>Sugamata, Yutaro</creatorcontrib><creatorcontrib>Koike, Hiroshi</creatorcontrib><creatorcontrib>Iida, Seiichiro</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Sugamata, Yutaro</au><au>Koike, Hiroshi</au><au>Iida, Seiichiro</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Electretized sheet and filter</title><date>2022-09-06</date><risdate>2022</risdate><abstract>The electret-treated sheet includes: a core layer (A) which is a porous film containing at least a thermoplastic resin; a surface layer (X) disposed on one side of the core layer (A); and a back surface layer (Y) disposed on the other side of the core layer (A), the surface layer (X) and the back surface layer (Y) each having a charged outermost surface, wherein the electret-treated sheet has a water vapor permeability coefficient of 0.1 to 2.5 g·mm/m2·24 hr; the core layer (A) has a pore aspect ratio of 5 to 50 and an average pore height of 2.5 to 15 μm; the surface layer (X) and the back surface layer (Y) each have a thickness of 5 to 200 μm; and the surface layer (X) includes a heat seal layer (B) including the outermost surface, wherein the heat seal layer (B) has a melting point of 50 to 140° C.</abstract><oa>free_for_read</oa></addata></record> |
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| language | eng |
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| subjects | LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLIDMATERIALS OR FLUIDS MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROMSOLID MATERIALS OR FLUIDS PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL SEPARATION SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATICTABLES OR JIGS TRANSPORTING |
| title | Electretized sheet and filter |
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