A METHOD FOR PRODUCING A HEAT SEALABLE MULTI-LAYER PAPERBOARD AND A HEAT SEALABLE MULTI-LAYER PAPERBOARD OBTAINABLE BY THE METHOD
The present invention relates to methods for producing heat sealable multilayer paperboards comprising precoating layer including polyvinyl acetate acrylate latex binder and one or more water-based barrier layers. Heat sealability of the multilayer paperboard of the present invention (▲) was signifi...
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| creator | LUNDSTEN, Gun MIETTINEN, Päivi AHOKAS, Mia KEIHOLA, Heidi HEINONEN, Jaana |
| description | The present invention relates to methods for producing heat sealable multilayer paperboards comprising precoating layer including polyvinyl acetate acrylate latex binder and one or more water-based barrier layers. Heat sealability of the multilayer paperboard of the present invention (▲) was significantly better than heat-sealability of a multilayer paperboard wherein the precoating was omitted (●) or wherein the precoating incudes typical binders such as styrene butadiene latex (○) or styrene acrylate latex (■) but no polyvinyl acetate acrylate latex. The present invention relates also to heat sealable multilayer paperboards obtainable by the method and use of polyvinyl acetate acrylate latex in precoating composition for improving heat sealability of a multi-layer paperboard.
La présente invention se rapporte à des procédés de fabrication de cartons multicouches thermosoudables qui comprennent une couche de pré-revêtement comprenant un liant de latex d'acrylate d'acétate de polyvinyle et une ou plusieurs couches barrières à base d'eau. L'aptitude au thermosoudage du carton multicouche de la présente invention (▲) est considérablement meilleure que l'aptitude au thermosoudage d'un carton multicouche, le pré-revêtement étant omis (●) ou le pré-revêtement comprenant des liants typiques tels que le latex de styrène-butadiène (O) ou le latex de styrène-acrylate (■) mais pas de latex d'acrylate d'acétate de polyvinyle. La présente invention se rapporte également à des cartons multicouches thermosoudables pouvant être obtenus par le procédé et à l'utilisation de latex d'acrylate d'acétate de polyvinyle dans une composition de pré-revêtement pour améliorer l'aptitude au thermosoudage d'un carton multicouche. |
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La présente invention se rapporte à des procédés de fabrication de cartons multicouches thermosoudables qui comprennent une couche de pré-revêtement comprenant un liant de latex d'acrylate d'acétate de polyvinyle et une ou plusieurs couches barrières à base d'eau. L'aptitude au thermosoudage du carton multicouche de la présente invention (▲) est considérablement meilleure que l'aptitude au thermosoudage d'un carton multicouche, le pré-revêtement étant omis (●) ou le pré-revêtement comprenant des liants typiques tels que le latex de styrène-butadiène (O) ou le latex de styrène-acrylate (■) mais pas de latex d'acrylate d'acétate de polyvinyle. La présente invention se rapporte également à des cartons multicouches thermosoudables pouvant être obtenus par le procédé et à l'utilisation de latex d'acrylate d'acétate de polyvinyle dans une composition de pré-revêtement pour améliorer l'aptitude au thermosoudage d'un carton multicouche.</description><language>eng ; fre</language><subject>ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR ; CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS,e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES,DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS ; CONVEYING ; HANDLING THIN OR FILAMENTARY MATERIAL ; IMPREGNATING OR COATING OF PAPER ; PACKAGES ; PACKAGING ELEMENTS ; PACKING ; PAPER NOT OTHERWISE PROVIDED FOR ; PAPER-MAKING ; PERFORMING OPERATIONS ; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D ; PRODUCTION OF CELLULOSE ; PULP COMPOSITIONS ; STORING ; TEXTILES ; TRANSPORTING ; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G</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=20220630&DB=EPODOC&CC=WO&NR=2022136728A1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76290</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20220630&DB=EPODOC&CC=WO&NR=2022136728A1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>LUNDSTEN, Gun</creatorcontrib><creatorcontrib>MIETTINEN, Päivi</creatorcontrib><creatorcontrib>AHOKAS, Mia</creatorcontrib><creatorcontrib>KEIHOLA, Heidi</creatorcontrib><creatorcontrib>HEINONEN, Jaana</creatorcontrib><title>A METHOD FOR PRODUCING A HEAT SEALABLE MULTI-LAYER PAPERBOARD AND A HEAT SEALABLE MULTI-LAYER PAPERBOARD OBTAINABLE BY THE METHOD</title><description>The present invention relates to methods for producing heat sealable multilayer paperboards comprising precoating layer including polyvinyl acetate acrylate latex binder and one or more water-based barrier layers. Heat sealability of the multilayer paperboard of the present invention (▲) was significantly better than heat-sealability of a multilayer paperboard wherein the precoating was omitted (●) or wherein the precoating incudes typical binders such as styrene butadiene latex (○) or styrene acrylate latex (■) but no polyvinyl acetate acrylate latex. The present invention relates also to heat sealable multilayer paperboards obtainable by the method and use of polyvinyl acetate acrylate latex in precoating composition for improving heat sealability of a multi-layer paperboard.
La présente invention se rapporte à des procédés de fabrication de cartons multicouches thermosoudables qui comprennent une couche de pré-revêtement comprenant un liant de latex d'acrylate d'acétate de polyvinyle et une ou plusieurs couches barrières à base d'eau. L'aptitude au thermosoudage du carton multicouche de la présente invention (▲) est considérablement meilleure que l'aptitude au thermosoudage d'un carton multicouche, le pré-revêtement étant omis (●) ou le pré-revêtement comprenant des liants typiques tels que le latex de styrène-butadiène (O) ou le latex de styrène-acrylate (■) mais pas de latex d'acrylate d'acétate de polyvinyle. La présente invention se rapporte également à des cartons multicouches thermosoudables pouvant être obtenus par le procédé et à l'utilisation de latex d'acrylate d'acétate de polyvinyle dans une composition de pré-revêtement pour améliorer l'aptitude au thermosoudage d'un carton multicouche.</description><subject>ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR</subject><subject>CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS,e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES,DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS</subject><subject>CONVEYING</subject><subject>HANDLING THIN OR FILAMENTARY MATERIAL</subject><subject>IMPREGNATING OR COATING OF PAPER</subject><subject>PACKAGES</subject><subject>PACKAGING ELEMENTS</subject><subject>PACKING</subject><subject>PAPER NOT OTHERWISE PROVIDED FOR</subject><subject>PAPER-MAKING</subject><subject>PERFORMING OPERATIONS</subject><subject>PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D</subject><subject>PRODUCTION OF CELLULOSE</subject><subject>PULP COMPOSITIONS</subject><subject>STORING</subject><subject>TEXTILES</subject><subject>TRANSPORTING</subject><subject>TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2022</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZGh0VPB1DfHwd1Fw8w9SCAjydwl19vRzV3BU8HB1DFEIdnX0cXTycVXwDfUJ8dT1cYx0BapyDHANcvJ3DHJRcPRzIVapv1OIo6cfWIVTpEKIhyvUYh4G1rTEnOJUXijNzaDs5hri7KGbWpAfn1pckJicmpdaEh_ub2RgZGRobGZuZOFoaEycKgD_nzxx</recordid><startdate>20220630</startdate><enddate>20220630</enddate><creator>LUNDSTEN, Gun</creator><creator>MIETTINEN, Päivi</creator><creator>AHOKAS, Mia</creator><creator>KEIHOLA, Heidi</creator><creator>HEINONEN, Jaana</creator><scope>EVB</scope></search><sort><creationdate>20220630</creationdate><title>A METHOD FOR PRODUCING A HEAT SEALABLE MULTI-LAYER PAPERBOARD AND A HEAT SEALABLE MULTI-LAYER PAPERBOARD OBTAINABLE BY THE METHOD</title><author>LUNDSTEN, Gun ; MIETTINEN, Päivi ; AHOKAS, Mia ; KEIHOLA, Heidi ; HEINONEN, Jaana</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_WO2022136728A13</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; fre</language><creationdate>2022</creationdate><topic>ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR</topic><topic>CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS,e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES,DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS</topic><topic>CONVEYING</topic><topic>HANDLING THIN OR FILAMENTARY MATERIAL</topic><topic>IMPREGNATING OR COATING OF PAPER</topic><topic>PACKAGES</topic><topic>PACKAGING ELEMENTS</topic><topic>PACKING</topic><topic>PAPER NOT OTHERWISE PROVIDED FOR</topic><topic>PAPER-MAKING</topic><topic>PERFORMING OPERATIONS</topic><topic>PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D</topic><topic>PRODUCTION OF CELLULOSE</topic><topic>PULP COMPOSITIONS</topic><topic>STORING</topic><topic>TEXTILES</topic><topic>TRANSPORTING</topic><topic>TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G</topic><toplevel>online_resources</toplevel><creatorcontrib>LUNDSTEN, Gun</creatorcontrib><creatorcontrib>MIETTINEN, Päivi</creatorcontrib><creatorcontrib>AHOKAS, Mia</creatorcontrib><creatorcontrib>KEIHOLA, Heidi</creatorcontrib><creatorcontrib>HEINONEN, Jaana</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>LUNDSTEN, Gun</au><au>MIETTINEN, Päivi</au><au>AHOKAS, Mia</au><au>KEIHOLA, Heidi</au><au>HEINONEN, Jaana</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>A METHOD FOR PRODUCING A HEAT SEALABLE MULTI-LAYER PAPERBOARD AND A HEAT SEALABLE MULTI-LAYER PAPERBOARD OBTAINABLE BY THE METHOD</title><date>2022-06-30</date><risdate>2022</risdate><abstract>The present invention relates to methods for producing heat sealable multilayer paperboards comprising precoating layer including polyvinyl acetate acrylate latex binder and one or more water-based barrier layers. Heat sealability of the multilayer paperboard of the present invention (▲) was significantly better than heat-sealability of a multilayer paperboard wherein the precoating was omitted (●) or wherein the precoating incudes typical binders such as styrene butadiene latex (○) or styrene acrylate latex (■) but no polyvinyl acetate acrylate latex. The present invention relates also to heat sealable multilayer paperboards obtainable by the method and use of polyvinyl acetate acrylate latex in precoating composition for improving heat sealability of a multi-layer paperboard.
La présente invention se rapporte à des procédés de fabrication de cartons multicouches thermosoudables qui comprennent une couche de pré-revêtement comprenant un liant de latex d'acrylate d'acétate de polyvinyle et une ou plusieurs couches barrières à base d'eau. L'aptitude au thermosoudage du carton multicouche de la présente invention (▲) est considérablement meilleure que l'aptitude au thermosoudage d'un carton multicouche, le pré-revêtement étant omis (●) ou le pré-revêtement comprenant des liants typiques tels que le latex de styrène-butadiène (O) ou le latex de styrène-acrylate (■) mais pas de latex d'acrylate d'acétate de polyvinyle. La présente invention se rapporte également à des cartons multicouches thermosoudables pouvant être obtenus par le procédé et à l'utilisation de latex d'acrylate d'acétate de polyvinyle dans une composition de pré-revêtement pour améliorer l'aptitude au thermosoudage d'un carton multicouche.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS,e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES,DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS CONVEYING HANDLING THIN OR FILAMENTARY MATERIAL IMPREGNATING OR COATING OF PAPER PACKAGES PACKAGING ELEMENTS PACKING PAPER NOT OTHERWISE PROVIDED FOR PAPER-MAKING PERFORMING OPERATIONS PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D PRODUCTION OF CELLULOSE PULP COMPOSITIONS STORING TEXTILES TRANSPORTING TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G |
| title | A METHOD FOR PRODUCING A HEAT SEALABLE MULTI-LAYER PAPERBOARD AND A HEAT SEALABLE MULTI-LAYER PAPERBOARD OBTAINABLE BY THE METHOD |
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