EP 2519692 B1 20170315 - PROCESS TO ENHANCING DRY STRENGTH OF PAPER BY TREATMENT WITH VINYLAMINE-CONTAINING POLYMERS AND ACRYLAMIDE CONTAINING POLYMERS
Title (en)
PROCESS TO ENHANCING DRY STRENGTH OF PAPER BY TREATMENT WITH VINYLAMINE-CONTAINING POLYMERS AND ACRYLAMIDE CONTAINING POLYMERS
Title (de)
VERFAHREN ZUR ERHÖHUNG DER PAPIERFESTIGKEIT DURCH BEHANDLUNG MIT VINYLAMINHALTIGEN POLYMEREN UND ACRYLAMIDHALTIGEN POLYMEREN
Title (fr)
PROCÉDÉ POUR AMÉLIORER LA RÉSISTANCE À L'ÉTAT SEC DU PAPIER, PAR TRAITEMENT PAR DES POLYMÈRES CONTENANT DE LA VINYLAMINE ET DES POLYMÈRES CONTENANT DE L'ACRYLAMIDE
Publication
Application
Priority
- US 29067009 P 20091229
- US 2010061750 W 20101222
Abstract (en)
[origin: US2011155339A1] A process is disclosed for the production of paper with enhanced dry strength comprising adding to the wet end of a paper machine, (a) a vinylamine-containing aqueous solution polymer having a molecular weight of from 75,000 daltons to 750,000 daltons and (b) an amphoteric or cationic acrylamide-containing aqueous solution polymer having a molecular weight of from 75,000 daltons to 1,500,000 daltons, wherein the sum of the anionic and cationic monomers comprises at least 5% on a molar basis of the composition of the acrylamide-containing polymer.
IPC 8 full level
D21H 21/18 (2006.01)
CPC (source: EP KR US)
D21H 17/35 (2013.01 - KR); D21H 17/37 (2013.01 - KR); D21H 17/375 (2013.01 - KR); D21H 17/56 (2013.01 - KR); D21H 21/14 (2013.01 - KR); D21H 21/18 (2013.01 - EP KR US); D21H 17/35 (2013.01 - EP US); D21H 17/37 (2013.01 - EP US); D21H 17/375 (2013.01 - EP US); D21H 17/56 (2013.01 - EP US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
US 2011155339 A1 20110630; AU 2010343125 A1 20120621; AU 2010343125 B2 20141016; BR 112012015966 A2 20160419; BR 112012015966 B1 20200512; CA 2780597 A1 20110728; CA 2780597 C 20170404; CN 102713059 A 20121003; CN 102713059 B 20150902; CN 105040517 A 20151111; EP 2519692 A1 20121107; EP 2519692 B1 20170315; EP 3124695 A1 20170201; ES 2625625 T3 20170720; JP 2013515877 A 20130509; JP 6050122 B2 20161227; KR 20120124398 A 20121113; MX 2012006403 A 20120710; PL 2519692 T3 20170831; PT 2519692 T 20170424; TW 201137201 A 20111101; TW I506182 B 20151101; WO 2011090672 A1 20110728; ZA 201205691 B 20140129
DOCDB simple family (application)
US 97544110 A 20101222; AU 2010343125 A 20101222; BR 112012015966 A 20101222; CA 2780597 A 20101222; CN 201080059943 A 20101222; CN 201510471542 A 20101222; EP 10799243 A 20101222; EP 16189885 A 20101222; ES 10799243 T 20101222; JP 2012547151 A 20101222; KR 20127016776 A 20101222; MX 2012006403 A 20101222; PL 10799243 T 20101222; PT 10799243 T 20101222; TW 99146428 A 20101228; US 2010061750 W 20101222; ZA 201205691 A 20120727