EP 3237469 A1 20171101 - PROCESS FOR THE PREPARATION OF POLYMERS BASED ON VINYL HALIDES WITH ENHANCED PROPERTIES AND PRODUCTIVITY
Title (en)
PROCESS FOR THE PREPARATION OF POLYMERS BASED ON VINYL HALIDES WITH ENHANCED PROPERTIES AND PRODUCTIVITY
Title (de)
VERFAHREN ZUR HERSTELLUNG VON POLYMEREN AUF BASIS VON VINYLHALOGENIDEN MIT VERBESSERTEN EIGENSCHAFTEN UND PRODUKTIVITÄT
Title (fr)
PROCÉDÉ DE PRÉPARATION DE POLYMÈRES À BASE D'HALOGÉNURES DE VINYLE PRÉSENTANT DES PROPRIÉTÉS ET UNE PRODUCTIVITÉ AMÉLIORÉES
Publication
Application
Priority
- EP 14382557 A 20141223
- EP 2015080963 W 20151222
Abstract (en)
[origin: WO2016102558A1] It is provided a process for the preparation of a polymer from a vinyl halide monomer (monomer A) and a monomer B that contains only one ethylenic double bond by free radical polymerization in aqueous medium, wherein the monomer B is present in the polymer in an amount of up to 25 wt% of the total monomers in the polymer. The process comprising a step a) mixing water, one amphiphilic substance,from 10 to 100 wt% of the monomer B, and from 10 to 100 wt% of the monomer A at an appropriate temperature, and adding an initiator in order to start polymerization and allowing the system to react until reaching a conversion from 10 to 99 mol% of monomers; and a step b) adding the remaining amount of monomer A and the remaining amount of the monomer B; wherein once finished the polymerization reaction, the conversion of the monomers is higher than 70%, provided that monomer B is not a methacrylate monomer.
IPC 8 full level
C08F 214/06 (2006.01); C08F 2/18 (2006.01); C08F 220/18 (2006.01)
CPC (source: EP)
C08F 214/06 (2013.01); C08F 220/1808 (2020.02)
Citation (search report)
See references of WO 2016102558A1
Citation (examination)
- US 2009143547 A1 20090604 - LIN CHENG-JUNG [TW], et al
- KR 101047667 B1 20110708
- US 3882195 A 19750506 - DANIELS WILEY E, et al
- US 3835105 A 19740910 - FENDEL K, et al
- US 3459719 A 19690805 - RICHARDSON DEAN E, et al
- GB 821035 A 19590930 - UNION CARBIDE & CARBON CORP
- FR 1263236 A 19610609 - CFMC
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)
DOCDB simple family (application)
EP 2015080963 W 20151222; EP 15817350 A 20151222