(19)
(11) EP 4 816 079 A1

(12)

(43) Date of publication:
07.10.2026 Bulletin 2026/41

(21) Application number: 23814384.6

(22) Date of filing: 28.11.2023
(51) International Patent Classification (IPC): 
B01D 61/00(2006.01)
C08F 220/14(2006.01)
 C08F 2/24(2006.01)
C08F 220/18(2006.01)
(52) Cooperative Patent Classification (CPC):
C08F 220/14; C08F 220/1804; C09D 133/12; C09J 133/12; C08F 2/26
 
C-Sets:
  1. C08F 220/14, C08F 220/06;
  2. C08F 220/14, C08F 220/1804, C08F 220/06;
  3. C08F 220/1804, C08F 220/14, C08F 220/06;
(86) International application number:
PCT/EP2023/083267
(87) International publication number:
WO 2025/113772 (05.06.2025 Gazette 2025/23)
(84) Designated Contracting States:
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 ME MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated Extension States:
BA
Designated Validation States:
KH MA MD TN

(71) Applicant: Trinseo Europe GmbH
8808 Pfaeffikon (CH)

(72) Inventors:
  • HESTER, Kenneth
    67760 Gambsheim (FR)
  • JOUSSOT, Jessie
    67716 Reichstett (FR)
  • HUGENTOBLER, Andre
    8808 Pfaeffikon (CH)

(74) Representative: Stolmár & Partner Intellectual Property GmbH 
Bahnhofstrasse 11
6210 Sursee
6210 Sursee (CH)

   


(54) WATER-BASED COPOLYMER EMULSION WITH REGENERATED MMA, PROCESS TO OBTAIN THE SAME HAVING A LOW VOC-CONTENT, AND THEIR USE