EP 3927878 A1 20211229 - FORMALDEHYDE-FREE BINDER COMPOSITION
Title (en)
FORMALDEHYDE-FREE BINDER COMPOSITION
Title (de)
FORMALDEHYDFREIE BINDEMITTEL-ZUSAMMENSETZUNG
Title (fr)
COMPOSITION DE LIANT SANS FORMALDÉHYDE
Publication
Application
Priority
EP 2020052993 W 20200206
Abstract (en)
[origin: WO2021155932A1] The invention relates to an aqueous binder composition for fibre binding, obtainable by means of free-radically initiated polymerization of vinyl acetate and ethylene, in the presence of polyvinyl alcohol in an aqueous medium, characterized in that a) 50% to 94% by weight of vinyl acetate, b) 5% to 40% by weight of ethylene, c) 0.2% to 5% by weight of acrylamide and/or methacrylamide, d) 0.2% to 5% by weight of maleic anhydride and/or maleic acid, are copolymerized in the presence of a polyvinyl alcohol having a hydrolysis level of 80 to 99 mol%, where the figures in % by weight are each based on the total weight of the comonomers and in each case add up to 100% by weight.
IPC 8 full level
D06M 15/227 (2006.01); C08F 210/02 (2006.01); C08F 218/08 (2006.01); C08F 220/56 (2006.01); C08F 222/02 (2006.01); C08F 222/06 (2006.01); C09D 131/04 (2006.01); D04H 1/587 (2012.01); D04H 1/64 (2012.01); D06M 15/263 (2006.01); D06M 15/285 (2006.01); D06M 15/333 (2006.01)
CPC (source: CN EP US)
C08F 4/40 (2013.01 - EP); C08F 218/08 (2013.01 - CN EP); C08L 31/04 (2013.01 - US); C09D 131/04 (2013.01 - EP); C09J 11/08 (2013.01 - CN); C09J 131/04 (2013.01 - CN); D04H 1/587 (2013.01 - EP); D04H 1/64 (2013.01 - EP); D04H 1/641 (2013.01 - US); D06M 15/227 (2013.01 - EP); D06M 15/263 (2013.01 - EP); D06M 15/285 (2013.01 - EP); D06M 15/333 (2013.01 - EP); D06M 17/06 (2013.01 - CN)
C-Set (source: CN EP)
CN
- C08F 218/08 + C08F 210/02 + C08F 220/56 + C08F 220/06 + C08F 222/06 + C08F 220/58
- C09J 131/04 + C08L 29/04
EP
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)
WO 2021155932 A1 20210812; CN 113811584 A 20211217; CN 113811584 B 20230808; EP 3927878 A1 20211229; US 2022220646 A1 20220714
DOCDB simple family (application)
EP 2020052993 W 20200206; CN 202080034762 A 20200206; EP 20704003 A 20200206; US 202017609386 A 20200206