Global Patent Index - EP 0977817 A1

EP 0977817 A1 20000209 - AQUEOUS COATING AGENT

Title (en)

AQUEOUS COATING AGENT

Title (de)

WÄSSRIGES ÜBERZUGSMITTEL

Title (fr)

ENDUIT AQUEUX

Publication

EP 0977817 A1 (DE)

Application

EP 98922786 A

Priority

  • DE 19719037 A
  • EP 9802548 W

Abstract (en)

[origin: WO9849244A1] An aqueous coating agent contains (a) at least one binder, (b) water, (c) optional catalysts, auxiliary substances, degassing agents, levelling agents, U.V.-absorbers, radical catchers, non-ionic thickeners, biocides, water-retaining agents and/or anti-oxidants, (d) optional colouring and/or effect-producing pigments, (e) optional cross-linking agents. This coating agent is characterised in that it can be prepared by the following steps: (A) the binder is prepared in an organic solvent; (B) the thus obtained binder solution is dissolved or dispersed in critical or supercritical carbon dioxide in critical or supercritical carbon dioxide pressure and temperature conditions; (C) at least 80 % of the organic binder, relative to the total content of organic binders, is extracted from the thus obtained solution or dispersion and optionally recovered; (D) the thus obtained, solvent-impoverished solution or dispersion is added to water in subcritical carbon dioxide pressure and temperature conditions.

IPC 1-7

C09D 7/00

IPC 8 full level

C09D 5/02 (2006.01)

CPC (source: EP)

C09D 5/02 (2013.01); Y02P 20/544 (2015.11)

Citation (search report)

See references of WO 9849244A1

Designated contracting state (EPC)

DE ES FR

DOCDB simple family (publication)

WO 9849244 A1 19981105; EP 0977817 A1 20000209

DOCDB simple family (application)

EP 9802548 W 19980430; EP 98922786 A 19980430