EP 2658878 A1 20131106 - CONTINUOUS PROCESS FOR ESTERIFYING POLYMERS BEARING ACID GROUPS
Title (en)
CONTINUOUS PROCESS FOR ESTERIFYING POLYMERS BEARING ACID GROUPS
Title (de)
KONTINUIERLICHES VERFAHREN ZUR VERESTERUNG SÄUREGRUPPEN TRAGENDER POLYMERE
Title (fr)
PROCÉDÉ CONTINU D'ESTÉRIFICATION DE POLYMÈRES COMPORTANT DES GROUPES ACIDES
Publication
Application
Priority
- DE 102010056566 A 20101230
- EP 2011006175 W 20111208
Abstract (en)
[origin: WO2012089299A1] The invention accordingly provides a continuous process for reacting synthetic poly(carboxylic acid)s (A) containing, per polymer chain, at least 10 structural repeat units of formula (I) where R1 is hydrogen, a C1- to C4-alkyl group or a group of formula -COOH, R2 is hydrogen or a C1- to C4-alkyl group, and R3 is hydrogen, a C1- to C4-alkyl group or -COOH, with alcohols (B) of general formula (II) R4-(OH)n (II) where R4 is a hydrocarbyl radical of 1 to 100 carbon atoms which may be substituted or which may contain hetero atoms, and n is a number from 1 to 10 by a reaction mixture containing at least one synthetic poly(carboxylic acid) (A) and at least one alcohol of formula (II) in a solvent mixture containing water and, based on the weight of the solvent mixture, 0.1 - 75% by weight of at least one water-miscible organic solvent, and wherein the organic solvent has a dielectric constant of at least 10 when measured at 25°C, being introduced into a reaction sector and on flowing through the reaction sector being exposed to microwave radiation, and wherein the reaction mixture in the reaction sector is heated by the microwave irradiation to temperatures above 100°C.
IPC 8 full level
C08F 8/14 (2006.01); B01J 19/12 (2006.01); C08F 8/44 (2006.01); C08F 20/06 (2006.01); C08F 22/02 (2006.01); C08F 120/06 (2006.01); C08G 81/02 (2006.01); H05B 6/80 (2006.01)
CPC (source: EP KR US)
B01J 19/12 (2013.01 - KR); B01J 19/126 (2013.01 - EP US); C08F 8/14 (2013.01 - EP KR US); C08F 8/44 (2013.01 - EP KR US); C08F 20/06 (2013.01 - KR); C08F 22/02 (2013.01 - KR); C08G 81/02 (2013.01 - KR); C08J 3/28 (2013.01 - US); H05B 6/80 (2013.01 - KR); H05B 6/806 (2013.01 - EP US); B01J 2219/0884 (2013.01 - EP US); B01J 2219/0888 (2013.01 - EP US); B01J 2219/0892 (2013.01 - EP US); B01J 2219/1215 (2013.01 - EP US); B01J 2219/1227 (2013.01 - EP US); B01J 2219/1287 (2013.01 - EP US)
Citation (search report)
See references of WO 2012089299A1
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)
WO 2012089299 A1 20120705; BR 112013016872 A2 20161025; CN 103492428 A 20140101; CN 103492428 B 20150729; DE 102010056566 A1 20120705; EP 2658878 A1 20131106; JP 2014504655 A 20140224; KR 20140000296 A 20140102; US 2013274368 A1 20131017
DOCDB simple family (application)
EP 2011006175 W 20111208; BR 112013016872 A 20111208; CN 201180060038 A 20111208; DE 102010056566 A 20101230; EP 11793673 A 20111208; JP 2013546600 A 20111208; KR 20137017103 A 20111208; US 201113977346 A 20111208