CONTROLLABLE FILLER PREFLOCULATION USING A DUAL POLYMER SYSTEM
A method of preparing a stable dispersion of flocculated filler particles for use in papermaking processes comprises sequential addition of high and low molecular weight flocculating agents to an aqueous dispersion of filler particles followed by shearing of the resultant filler flocs to the desired...
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| creator | GRAY, ROSS T CHENG, WEIGUO |
| description | A method of preparing a stable dispersion of flocculated filler particles for use in papermaking processes comprises sequential addition of high and low molecular weight flocculating agents to an aqueous dispersion of filler particles followed by shearing of the resultant filler flocs to the desired particle size resulting in shear resistant filler flocs with a defined and controllable size distribution.
La présente invention concerne un procédé de préparation d'une dispersion stable de particules de charge floculées à utiliser dans des procédés de fabrication de papier, lequel procédé consiste à ajouter séquentiellement des agents de floculation de masse moléculaire élevée et faible à une dispersion aqueuse de particules de charge, puis à cisailler les flocons de charge résultants jusqu'à obtenir la taille de particule souhaitée, des flocons de charge résistant au cisaillement ayant une distribution de taille définie et contrôlable étant ainsi obtenus. |
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La présente invention concerne un procédé de préparation d'une dispersion stable de particules de charge floculées à utiliser dans des procédés de fabrication de papier, lequel procédé consiste à ajouter séquentiellement des agents de floculation de masse moléculaire élevée et faible à une dispersion aqueuse de particules de charge, puis à cisailler les flocons de charge résultants jusqu'à obtenir la taille de particule souhaitée, des flocons de charge résistant au cisaillement ayant une distribution de taille définie et contrôlable étant ainsi obtenus.</description><language>eng ; fre</language><subject>IMPREGNATING OR COATING OF PAPER ; PAPER NOT OTHERWISE PROVIDED FOR ; PAPER-MAKING ; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D ; PRODUCTION OF CELLULOSE ; PULP COMPOSITIONS ; TEXTILES ; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G</subject><creationdate>2017</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=20171212&DB=EPODOC&CC=CA&NR=2698811C$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25543,76293</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20171212&DB=EPODOC&CC=CA&NR=2698811C$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>GRAY, ROSS T</creatorcontrib><creatorcontrib>CHENG, WEIGUO</creatorcontrib><title>CONTROLLABLE FILLER PREFLOCULATION USING A DUAL POLYMER SYSTEM</title><description>A method of preparing a stable dispersion of flocculated filler particles for use in papermaking processes comprises sequential addition of high and low molecular weight flocculating agents to an aqueous dispersion of filler particles followed by shearing of the resultant filler flocs to the desired particle size resulting in shear resistant filler flocs with a defined and controllable size distribution.
La présente invention concerne un procédé de préparation d'une dispersion stable de particules de charge floculées à utiliser dans des procédés de fabrication de papier, lequel procédé consiste à ajouter séquentiellement des agents de floculation de masse moléculaire élevée et faible à une dispersion aqueuse de particules de charge, puis à cisailler les flocons de charge résultants jusqu'à obtenir la taille de particule souhaitée, des flocons de charge résistant au cisaillement ayant une distribution de taille définie et contrôlable étant ainsi obtenus.</description><subject>IMPREGNATING OR COATING OF PAPER</subject><subject>PAPER NOT OTHERWISE PROVIDED FOR</subject><subject>PAPER-MAKING</subject><subject>PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D</subject><subject>PRODUCTION OF CELLULOSE</subject><subject>PULP COMPOSITIONS</subject><subject>TEXTILES</subject><subject>TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2017</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZLBz9vcLCfL38XF08nFVcPP08XENUggIcnXz8XcO9XEM8fT3UwgN9vRzV3BUcAl19FEI8PeJ9AWqCY4MDnH15WFgTUvMKU7lhdLcDPJuriHOHrqpBfnxqcUFicmpeakl8c6ORmaWFhaGhs7GhFUAANjRKZE</recordid><startdate>20171212</startdate><enddate>20171212</enddate><creator>GRAY, ROSS T</creator><creator>CHENG, WEIGUO</creator><scope>EVB</scope></search><sort><creationdate>20171212</creationdate><title>CONTROLLABLE FILLER PREFLOCULATION USING A DUAL POLYMER SYSTEM</title><author>GRAY, ROSS T ; CHENG, WEIGUO</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_CA2698811C3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; fre</language><creationdate>2017</creationdate><topic>IMPREGNATING OR COATING OF PAPER</topic><topic>PAPER NOT OTHERWISE PROVIDED FOR</topic><topic>PAPER-MAKING</topic><topic>PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D</topic><topic>PRODUCTION OF CELLULOSE</topic><topic>PULP COMPOSITIONS</topic><topic>TEXTILES</topic><topic>TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G</topic><toplevel>online_resources</toplevel><creatorcontrib>GRAY, ROSS T</creatorcontrib><creatorcontrib>CHENG, WEIGUO</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>GRAY, ROSS T</au><au>CHENG, WEIGUO</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>CONTROLLABLE FILLER PREFLOCULATION USING A DUAL POLYMER SYSTEM</title><date>2017-12-12</date><risdate>2017</risdate><abstract>A method of preparing a stable dispersion of flocculated filler particles for use in papermaking processes comprises sequential addition of high and low molecular weight flocculating agents to an aqueous dispersion of filler particles followed by shearing of the resultant filler flocs to the desired particle size resulting in shear resistant filler flocs with a defined and controllable size distribution.
La présente invention concerne un procédé de préparation d'une dispersion stable de particules de charge floculées à utiliser dans des procédés de fabrication de papier, lequel procédé consiste à ajouter séquentiellement des agents de floculation de masse moléculaire élevée et faible à une dispersion aqueuse de particules de charge, puis à cisailler les flocons de charge résultants jusqu'à obtenir la taille de particule souhaitée, des flocons de charge résistant au cisaillement ayant une distribution de taille définie et contrôlable étant ainsi obtenus.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | IMPREGNATING OR COATING OF PAPER PAPER NOT OTHERWISE PROVIDED FOR PAPER-MAKING PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D PRODUCTION OF CELLULOSE PULP COMPOSITIONS TEXTILES TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G |
| title | CONTROLLABLE FILLER PREFLOCULATION USING A DUAL POLYMER SYSTEM |
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