Global Patent Index - EP 2027162 A1

EP 2027162 A1 2009-02-25 - PROCESS FOR PREPARING POLYMERS IN AQUEOUS SOLVENTS

Title (en)

PROCESS FOR PREPARING POLYMERS IN AQUEOUS SOLVENTS

Title (de)

VERFAHREN ZUR HERSTELLUNG VON POLYMEREN IN WÄSSRIGEN LÖSUNGSMITTELN

Title (fr)

PROCEDE DE FABRICATION DE POLYMERES EN SOLVANT AQUEUX

Publication

EP 2027162 A1 (DE)

Application

EP 07703873 A

Priority

  • EP 2007050357 W
  • EP 06100731 A
  • EP 07703873 A

Abstract (en)

[origin: WO2007082868A1] The present invention relates to processes for preparing polymers which contain 50-95% by weight of at least one ester of (meth)acrylic acid, 5-50% by weight of at least one olefinically unsaturated, free-radically polymerizable anionogenic or anionic compound and from 0 to 30% by weight of at least one further free-radically polymerizable compound in copolymerized form, by free-radical polymerization in a solution comprising alcohol, wherein the polymerization initiator used is at least one water-soluble initiator.

IPC 8 full level (invention and additional information)

C08F 2/04 (2006.01); A61K 8/81 (2006.01); A61Q 5/00 (2006.01); C08F 220/04 (2006.01); C08F 220/18 (2006.01)

CPC (invention and additional information)

C08F 2/10 (2013.01); A61K 8/8152 (2013.01); A61Q 5/06 (2013.01); C08F 4/40 (2013.01); C08F 220/14 (2013.01); C08F 220/06 (2013.01); C08F 220/36 (2013.01)

Citation (search report)

See references of WO 2007082868A1

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

Designated extension state (EPC)

AL BA HR MK RS

EPO simple patent family

WO 2007082868 A1 20070726; CN 101405304 A 20090408; EP 2027162 A1 20090225; US 2009010865 A1 20090108

INPADOC legal status


2013-01-09 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20120717

2012-08-01 [DAX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT (TO ANY COUNTRY) DELETED

2010-08-04 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20100701

2009-02-25 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20081212

2009-02-25 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

2009-02-25 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO

- Countries: AL BA HR MK RS