EP 3854936 A1 20210728 - PRODUCT CONTAINING AN ANIONIC CELLULOSE DERIVATIVE AND ITS USE IN PAPER INDUSTRY
Title (en)
PRODUCT CONTAINING AN ANIONIC CELLULOSE DERIVATIVE AND ITS USE IN PAPER INDUSTRY
Title (de)
PRODUKT MIT EINEM ANIONISCHEN CELLULOSEDERIVAT UND SEINE VERWENDUNG IN DER PAPIERINDUSTRIE
Title (fr)
PRODUIT CONTENANT UN DÉRIVÉ DE CELLULOSE ANIONIQUE ET SON UTILISATION DANS L'INDUSTRIE DU PAPIER
Publication
Application
Priority
EP 20153258 A 20200122
Abstract (en)
The present invention relates to a product comprising:- a microfibrillated cellulose composition,- a starch derivative, and- an anionic cellulose derivative having a number average molecular weight comprised between 300000 g/mol and 800000 g/mol, and a degree of substitution comprised between 0.3 and 0.65,as a combined preparation for simultaneous or separate use.The present invention also relates to the use of this product, as a strength additive for increasing the initial wet web strength and/or dry tensile strength of a paper sheet.
IPC 8 full level
D21H 11/18 (2006.01); D21H 17/00 (2006.01); D21H 17/25 (2006.01); D21H 17/28 (2006.01); D21H 17/29 (2006.01); D21H 17/37 (2006.01); D21H 17/68 (2006.01); D21H 21/20 (2006.01)
CPC (source: EP KR US)
D21H 11/18 (2013.01 - EP KR US); D21H 17/25 (2013.01 - EP KR US); D21H 17/28 (2013.01 - EP KR); D21H 17/29 (2013.01 - EP KR US); D21H 17/375 (2013.01 - EP KR); D21H 17/45 (2013.01 - US); D21H 17/68 (2013.01 - EP KR); D21H 17/74 (2013.01 - EP KR); D21H 21/10 (2013.01 - US); D21H 21/20 (2013.01 - EP KR US); D21H 23/04 (2013.01 - US)
Citation (search report)
- [I] WO 2012039668 A1 20120329 - STORA ENSO OYJ [FI], et al
- [A] WO 2018229333 A1 20181220 - KEMIRA OYJ [FI]
- [A] WO 2019123191 A1 20190627 - STORA ENSO OYJ [FI]
- [A] WO 2017103335 A1 20170622 - KEMIRA OYJ [FI]
- [A] WO 2010092239 A1 20100819 - UPM KYMMENE OYJ [FI], et al
- [A] EP 2662419 A1 20131113 - OMYA INT AG [CH]
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
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 3854936 A1 20210728; AU 2021211153 A1 20220825; BR 112022014498 A2 20220920; CA 3165198 A1 20210729; CN 115349042 A 20221115; CN 115349042 B 20240712; EP 4093911 A1 20221130; KR 20220125356 A 20220914; US 2023053998 A1 20230223; WO 2021148662 A1 20210729
DOCDB simple family (application)
EP 20153258 A 20200122; AU 2021211153 A 20210122; BR 112022014498 A 20210122; CA 3165198 A 20210122; CN 202180010419 A 20210122; EP 2021051536 W 20210122; EP 21701965 A 20210122; KR 20227028469 A 20210122; US 202117794618 A 20210122