EP 4284863 A2 20231206 - METHOD FOR DECOLORIZING A COLORED SYNTHETIC OR NON-SYNTHETIC POLAR-POLYMER MATERIAL
Title (en)
METHOD FOR DECOLORIZING A COLORED SYNTHETIC OR NON-SYNTHETIC POLAR-POLYMER MATERIAL
Title (de)
VERFAHREN ZUR ENTFÄRBUNG EINES GEFÄRBTEN SYNTHETISCHEN ODER NICHTSYNTHETISCHEN POLARPOLYMERMATERIALS
Title (fr)
PROCÉDÉ DE DÉCOLORATION D'UN MATÉRIAU POLYMÈRE POLAIRE SYNTHÉTIQUE OU NON SYNTHÉTIQUE COLORÉ
Publication
Application
Priority
- EP 21153465 A 20210126
- EP 2022051235 W 20220120
Abstract (en)
[origin: EP4032947A1] The present invention relates to a method for accelerated decolorizing a colored synthetic or non-synthetic polar-polymer material comprising the steps of exposing the colored synthetic and/or non-synthetic polar-polymer material to a decoloring composition, wherein the decoloring composition comprises at least one aromatic carbonic acid ester, at least one reducing agent or at least one oxidizing agent, and at least one alkaline agent
IPC 8 full level
C08J 11/06 (2006.01); B29B 13/00 (2006.01); D06P 1/00 (2006.01); D06P 1/90 (2006.01); D06P 5/13 (2006.01)
CPC (source: EP)
B29B 17/02 (2013.01); C08J 11/06 (2013.01); D06P 5/13 (2013.01); D06P 5/131 (2013.01); D06P 5/132 (2013.01); D06P 5/134 (2013.01); D06P 5/135 (2013.01); D06P 5/138 (2013.01); B29B 2017/0296 (2013.01); B29K 2105/0032 (2013.01); C08J 2323/06 (2013.01)
Citation (search report)
See references of WO 2022161850A2
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
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
EP 4032947 A1 20220727; EP 4284863 A2 20231206; WO 2022161850 A2 20220804; WO 2022161850 A3 20220915
DOCDB simple family (application)
EP 21153465 A 20210126; EP 2022051235 W 20220120; EP 22701933 A 20220120