METHOD FOR MANUFACTURING FILM, AND POROUS FILM
To suppress shrinkage of a film manufactured through a stretching step due to orientational relaxation of high molecular chains.SOLUTION: A method for manufacturing a film has the steps of: extruding a molten resin from a die to form it into a film extending in one direction; stretching the film obt...
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| creator | NIITSU TAICHI TAKADA YUKI MURAKAWA KOHEI |
| description | To suppress shrinkage of a film manufactured through a stretching step due to orientational relaxation of high molecular chains.SOLUTION: A method for manufacturing a film has the steps of: extruding a molten resin from a die to form it into a film extending in one direction; stretching the film obtained by the film formation, in a lengthwise direction while conveying it; applying a first heat-treatment to the stretched film while conveying it; and winding the film after the heat-treatment. Immediately before winding the film after the heat-treatment, the film is applied with a second heat-treatment.SELECTED DRAWING: Figure 1
【課題】延伸工程を経て製造されたフィルムが、高分子鎖の配向の緩和によって収縮することを抑制すること。【解決手段】溶融樹脂をダイから押し出して、一方向に延びるフィルムに製膜し；製膜によって得られたフィルムを搬送させながら長手方向に延伸させ；延伸されたフィルムを搬送させながら第１の熱処理を施し；熱処理後のフィルムを巻き取る、工程を有するフィルムの製造方法であって；熱処理後のフィルムを巻き取る直前に、該フィルムに第２の熱処理を施す。【選択図】図１ |
| format | Patent |
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【課題】延伸工程を経て製造されたフィルムが、高分子鎖の配向の緩和によって収縮することを抑制すること。【解決手段】溶融樹脂をダイから押し出して、一方向に延びるフィルムに製膜し；製膜によって得られたフィルムを搬送させながら長手方向に延伸させ；延伸されたフィルムを搬送させながら第１の熱処理を施し；熱処理後のフィルムを巻き取る、工程を有するフィルムの製造方法であって；熱処理後のフィルムを巻き取る直前に、該フィルムに第２の熱処理を施す。【選択図】図１</description><language>eng ; jpn</language><subject>AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G ; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING ; CHEMISTRY ; COMPOSITIONS BASED THEREON ; GENERAL PROCESSES OF COMPOUNDING ; METALLURGY ; ORGANIC MACROMOLECULAR COMPOUNDS ; PERFORMING OPERATIONS ; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR ; SHAPING OR JOINING OF PLASTICS ; THEIR PREPARATION OR CHEMICAL WORKING-UP ; TRANSPORTING ; WORKING OF PLASTICS ; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL ; WORKING-UP</subject><creationdate>2024</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=20240110&DB=EPODOC&CC=JP&NR=2024001721A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,777,882,25545,76296</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20240110&DB=EPODOC&CC=JP&NR=2024001721A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>NIITSU TAICHI</creatorcontrib><creatorcontrib>TAKADA YUKI</creatorcontrib><creatorcontrib>MURAKAWA KOHEI</creatorcontrib><title>METHOD FOR MANUFACTURING FILM, AND POROUS FILM</title><description>To suppress shrinkage of a film manufactured through a stretching step due to orientational relaxation of high molecular chains.SOLUTION: A method for manufacturing a film has the steps of: extruding a molten resin from a die to form it into a film extending in one direction; stretching the film obtained by the film formation, in a lengthwise direction while conveying it; applying a first heat-treatment to the stretched film while conveying it; and winding the film after the heat-treatment. Immediately before winding the film after the heat-treatment, the film is applied with a second heat-treatment.SELECTED DRAWING: Figure 1
【課題】延伸工程を経て製造されたフィルムが、高分子鎖の配向の緩和によって収縮することを抑制すること。【解決手段】溶融樹脂をダイから押し出して、一方向に延びるフィルムに製膜し；製膜によって得られたフィルムを搬送させながら長手方向に延伸させ；延伸されたフィルムを搬送させながら第１の熱処理を施し；熱処理後のフィルムを巻き取る、工程を有するフィルムの製造方法であって；熱処理後のフィルムを巻き取る直前に、該フィルムに第２の熱処理を施す。【選択図】図１</description><subject>AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G</subject><subject>AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING</subject><subject>CHEMISTRY</subject><subject>COMPOSITIONS BASED THEREON</subject><subject>GENERAL PROCESSES OF COMPOUNDING</subject><subject>METALLURGY</subject><subject>ORGANIC MACROMOLECULAR COMPOUNDS</subject><subject>PERFORMING OPERATIONS</subject><subject>SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR</subject><subject>SHAPING OR JOINING OF PLASTICS</subject><subject>THEIR PREPARATION OR CHEMICAL WORKING-UP</subject><subject>TRANSPORTING</subject><subject>WORKING OF PLASTICS</subject><subject>WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL</subject><subject>WORKING-UP</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2024</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZNDzdQ3x8HdRcPMPUvB19At1c3QOCQ3y9HNXcPP08dVRcPRzUQjwD_IPDQYL8DCwpiXmFKfyQmluBiU31xBnD93Ugvz41OKCxOTUvNSSeK8AIwMjEwMDQ3MjQ0djohQBABYnJeI</recordid><startdate>20240110</startdate><enddate>20240110</enddate><creator>NIITSU TAICHI</creator><creator>TAKADA YUKI</creator><creator>MURAKAWA KOHEI</creator><scope>EVB</scope></search><sort><creationdate>20240110</creationdate><title>METHOD FOR MANUFACTURING FILM, AND POROUS FILM</title><author>NIITSU TAICHI ; TAKADA YUKI ; MURAKAWA KOHEI</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_JP2024001721A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; jpn</language><creationdate>2024</creationdate><topic>AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G</topic><topic>AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING</topic><topic>CHEMISTRY</topic><topic>COMPOSITIONS BASED THEREON</topic><topic>GENERAL PROCESSES OF COMPOUNDING</topic><topic>METALLURGY</topic><topic>ORGANIC MACROMOLECULAR COMPOUNDS</topic><topic>PERFORMING OPERATIONS</topic><topic>SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR</topic><topic>SHAPING OR JOINING OF PLASTICS</topic><topic>THEIR PREPARATION OR CHEMICAL WORKING-UP</topic><topic>TRANSPORTING</topic><topic>WORKING OF PLASTICS</topic><topic>WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL</topic><topic>WORKING-UP</topic><toplevel>online_resources</toplevel><creatorcontrib>NIITSU TAICHI</creatorcontrib><creatorcontrib>TAKADA YUKI</creatorcontrib><creatorcontrib>MURAKAWA KOHEI</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>NIITSU TAICHI</au><au>TAKADA YUKI</au><au>MURAKAWA KOHEI</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>METHOD FOR MANUFACTURING FILM, AND POROUS FILM</title><date>2024-01-10</date><risdate>2024</risdate><abstract>To suppress shrinkage of a film manufactured through a stretching step due to orientational relaxation of high molecular chains.SOLUTION: A method for manufacturing a film has the steps of: extruding a molten resin from a die to form it into a film extending in one direction; stretching the film obtained by the film formation, in a lengthwise direction while conveying it; applying a first heat-treatment to the stretched film while conveying it; and winding the film after the heat-treatment. Immediately before winding the film after the heat-treatment, the film is applied with a second heat-treatment.SELECTED DRAWING: Figure 1
【課題】延伸工程を経て製造されたフィルムが、高分子鎖の配向の緩和によって収縮することを抑制すること。【解決手段】溶融樹脂をダイから押し出して、一方向に延びるフィルムに製膜し；製膜によって得られたフィルムを搬送させながら長手方向に延伸させ；延伸されたフィルムを搬送させながら第１の熱処理を施し；熱処理後のフィルムを巻き取る、工程を有するフィルムの製造方法であって；熱処理後のフィルムを巻き取る直前に、該フィルムに第２の熱処理を施す。【選択図】図１</abstract><oa>free_for_read</oa></addata></record> |
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| language | eng ; jpn |
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| subjects | AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING CHEMISTRY COMPOSITIONS BASED THEREON GENERAL PROCESSES OF COMPOUNDING METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL WORKING-UP |
| title | METHOD FOR MANUFACTURING FILM, AND POROUS FILM |
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