EP 2601227 A1 20130612 - PROCESS FOR PREPARING VINYL ACETATE-ETHYLENE COPOLYMERS BY MEANS OF EMULSION POLYMERIZATION
Title (en)
PROCESS FOR PREPARING VINYL ACETATE-ETHYLENE COPOLYMERS BY MEANS OF EMULSION POLYMERIZATION
Title (de)
VERFAHREN ZUR HERSTELLUNG VON VINYLACETAT-ETHYLEN-MISCHPOLYMERISATEN MITTELS EMULSIONSPOLYMERISATION
Title (fr)
PROCÉDÉ DE PRODUCTION DE COPOLYMÈRES D'ACÉTATE DE VINYLE-ÉTHYLÈNE PAR POLYMÉRISATION EN ÉMULSION
Publication
Application
Priority
- DE 102010038788 A 20100802
- EP 2011062705 W 20110725
Abstract (en)
[origin: WO2012016869A1] The invention provides processes for preparing vinyl acetate-ethylene copolymers by means of free-radical initiated emulsion polymerization of vinyl acetate, ethylene and optionally one or more further comonomers in the presence of at least one protective colloid and optionally at least one emulsifier, characterized in that the vinyl acetate-ethylene copolymers contain 18 to 45% by weight of ethylene units, based on the total weight of the vinyl acetate-ethylene copolymers, and at least 70% by weight of ethylene units, based on the total weight of the ethylene units and of the further comonomer units of the vinyl acetate-ethylene copolymers, and the free-radical initiated emulsion polymerization is performed in the presence of A) 0.5 to 20% by weight, based on the total weight of the monomers used overall, of one or more solvents, or B) 0.1 to 20% by weight, based on the total weight of monomers used overall, of one or more solvents, and 0.5 to 4% by weight, based on the total weight of monomers used overall, of one or more anionic sulphosuccinic esters of the general formula R1O-CO-CH2-CH (SO3M) -CO-O-R1 (I) in which M is a cation, R1 is a linear or branched alkyl radical having 4 to 17 carbon atoms, an alkylene oxide group -(R2-O)n-X or a cation M, where R2 is a linear or branched alkylene unit having 2 to 5 carbon atoms, n is an integer from 2 to 20 and X is a linear or branched alkyl radical having 4 to 17 carbon atoms, where at most one R1 radical in the general formula (I) is a cation M.
IPC 8 full level
C08F 218/08 (2006.01); C09J 131/04 (2006.01)
CPC (source: EP US)
C08F 2/06 (2013.01 - US); C08F 2/26 (2013.01 - EP US); C08F 210/02 (2013.01 - EP US); C08F 218/08 (2013.01 - EP US)
C-Set (source: EP US)
Citation (search report)
See references of WO 2012016869A1
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)
DE 102010038788 A1 20120202; CN 103140514 A 20130605; EP 2601227 A1 20130612; US 2013131261 A1 20130523; WO 2012016869 A1 20120209
DOCDB simple family (application)
DE 102010038788 A 20100802; CN 201180047825 A 20110725; EP 11745513 A 20110725; EP 2011062705 W 20110725; US 201113813863 A 20110725