EP 2649103 A1 20131016 - PRODUCTION OF COMB POLYMERS BY MEANS OF ESTERIFICATION
Title (en)
PRODUCTION OF COMB POLYMERS BY MEANS OF ESTERIFICATION
Title (de)
HERSTELLUNG VON KAMMPOLYMEREN DURCH VERESTERUNG
Title (fr)
PRÉPARATION DE POLYMÈRES PEIGNES PAR ESTÉRIFICATION
Publication
Application
Priority
- EP 10194535 A 20101210
- EP 2011072057 W 20111207
- EP 11791302 A 20111207
Abstract (en)
[origin: EP2463314A1] Preparing comb polymers by esterifying at least one polycarboxylic acid or its salt with at least one monohydroxy polyether, comprises (a) providing a reaction mixture containing at least one polycarboxylic acid, (b) heating the reaction mixture to at least 80[deg] C, preferably at least 100[deg] C, (c) adding a base, and (d) esterifying at a reaction temperature of at least 80[deg] C, preferably at least 100[deg] C, to obtain the comb polymer. The reaction mixture in step (a) and/or (b) is added with at least one monohydroxy polyether. Independent claims are also included for: (1) a comb polymer containing composition obtainable by the above method; (2) a hydraulically setting cement composition comprising at least one above comb polymer containing composition, and at least one hydraulically setting binder; and (3) a molding obtainable by setting and hardening of the above cement composition.
IPC 8 full level
C08F 8/14 (2006.01); C04B 24/26 (2006.01); C04B 28/00 (2006.01); C04B 40/00 (2006.01)
CPC (source: EP US)
C04B 24/26 (2013.01 - EP US); C04B 24/2605 (2013.01 - US); C04B 24/2647 (2013.01 - EP US); C04B 24/2658 (2013.01 - EP US); C04B 28/00 (2013.01 - EP US); C04B 28/02 (2013.01 - EP US); C04B 40/00 (2013.01 - EP US); C04B 2103/32 (2013.01 - EP US)
Citation (search report)
See references of WO 2012076596A1
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)
EP 2463314 A1 20120613; AU 2011340584 A1 20130502; BR 112013010865 A2 20160809; CN 103228680 A 20130731; EP 2649103 A1 20131016; MX 2013006018 A 20130715; US 2013217808 A1 20130822; WO 2012076596 A1 20120614
DOCDB simple family (application)
EP 10194535 A 20101210; AU 2011340584 A 20111207; BR 112013010865 A 20111207; CN 201180056848 A 20111207; EP 11791302 A 20111207; EP 2011072057 W 20111207; MX 2013006018 A 20111207; US 201113879527 A 20111207