EP 2181123 A1 20100505 - METHOD FOR PRODUCING CROSS-LINKED ACRYLIC ACID POLYMERS
Title (en)
METHOD FOR PRODUCING CROSS-LINKED ACRYLIC ACID POLYMERS
Title (de)
VERFAHREN ZUR HERSTELLUNG VON VERNETZTEN ACRYLSÄURE-POLYMEREN
Title (fr)
PROCÉDÉ DE PRODUCTION DE POLYMÈRES DE L'ACIDE ACRYLIQUE RÉTICULÉS
Publication
Application
Priority
- EP 2008060258 W 20080805
- EP 07114682 A 20070821
- EP 08786869 A 20080805
Abstract (en)
[origin: WO2009024457A1] The present invention relates to a method for producing cross-linked acrylic acid polymers, characterized in that the method is a precipitation polymerization carried out in a solvent comprising a hydrocarbon and/or alkyl ester, at at least two different temperatures, and using at least two different initiators. The invention further relates to cross-linked polymers obtainable using the method according to the invention, and cosmetic and pharmaceutical preparations comprising such polymers.
IPC 8 full level
C08F 2/06 (2006.01)
CPC (source: EP US)
A61K 8/8147 (2013.01 - EP US); A61Q 5/02 (2013.01 - EP US); C08F 2/18 (2013.01 - EP US); C08F 220/06 (2013.01 - EP US); C08F 216/125 (2013.01 - EP US); C08F 220/1818 (2020.02 - EP US); C08F 220/40 (2013.01 - EP US)
Citation (search report)
See references of WO 2009024457A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA MK RS
DOCDB simple family (publication)
WO 2009024457 A1 20090226; CN 101784569 A 20100721; EP 2181123 A1 20100505; US 2011158929 A1 20110630
DOCDB simple family (application)
EP 2008060258 W 20080805; CN 200880103678 A 20080805; EP 08786869 A 20080805; US 67458108 A 20080805