EP 4225830 A1 20230816 - YIELD-OPTIMIZED METHOD FOR PRODUCING A POLYAMIDE POWDER COMPOSITION
Title (en)
YIELD-OPTIMIZED METHOD FOR PRODUCING A POLYAMIDE POWDER COMPOSITION
Title (de)
ERTRAGSOPTIMIERTES VERFAHREN ZUR HERSTELLUNG EINER POLYAMIDPULVERZUSAMMENSETZUNG
Title (fr)
PROCÉDÉ DE PRÉPARATION D'UNE COMPOSITION DE POUDRE DE POLYAMIDES AVEC RENDEMENT OPTIMISÉ
Publication
Application
Priority
- FR 2010338 A 20201009
- FR 2021051761 W 20211011
Abstract (en)
[origin: WO2022074351A1] The present invention relates to a yield-optimized method for producing a powder composition based on polyamide(s). The method includes a step of recycling a composition based on a polyamide prepolymer having a lower Dv50, by polycondensation of a mixture comprising said composition and one or more monomers in the presence of water. The invention also relates to the resulting powder composition and to the use thereof, in particular for coating metal substrates by means of fluidised-bed dip-coating.
IPC 8 full level
C08G 69/06 (2006.01); C08G 69/16 (2006.01); C08G 69/46 (2006.01); C08J 3/12 (2006.01); C09D 177/02 (2006.01)
CPC (source: EP KR US)
C08G 69/04 (2013.01 - US); C08G 69/06 (2013.01 - EP KR); C08G 69/08 (2013.01 - KR); C08G 69/16 (2013.01 - EP US); C08G 69/46 (2013.01 - EP KR US); C09D 177/02 (2013.01 - EP KR US); Y02W 30/62 (2015.05 - EP)
Citation (search report)
See references of WO 2022074351A1
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)
FR 3115042 A1 20220415; FR 3115042 B1 20230106; CN 116507666 A 20230728; EP 4225830 A1 20230816; JP 2023545085 A 20231026; KR 20230084278 A 20230612; US 2023374217 A1 20231123; WO 2022074351 A1 20220414
DOCDB simple family (application)
FR 2010338 A 20201009; CN 202180075556 A 20211011; EP 21807167 A 20211011; FR 2021051761 W 20211011; JP 2023521641 A 20211011; KR 20237015671 A 20211011; US 202118248259 A 20211011