Global Patent Index - EP 0725805 A1

EP 0725805 A1 19960814 - PROCESS FOR PRODUCING WAX DISPERSIONS

Title (en)

PROCESS FOR PRODUCING WAX DISPERSIONS

Title (de)

VERFAHREN ZUR HERSTELLUNG VON WACHSDISPERSIONEN

Title (fr)

PROCEDE DE REALISATION DE DISPERSIONS DE CIRE

Publication

EP 0725805 A1 19960814 (DE)

Application

EP 94931535 A 19941020

Priority

  • DE 4337030 A 19931029
  • EP 9403453 W 19941020

Abstract (en)

[origin: WO9511936A2] Finely dispersed wax dispersions with a long shelf life can be obtained by heating: (A) 10 to 80 wt. % of wax with, (B) 0.5 to 30 wt. % of a hydrophilic non-ionic dispersant with an HLB value of 8 to 18 and, (C) 1 to 30 wt. % of a hydrophobic Co dispersant from the group of fatty alcohols with 12 to 22 C atoms or the partial esters of polyols with 3 to 6 C atoms with fatty acids with 12 to 22 C atoms, provided that the ratio of components (B) and (C) is in the range from 0.5:1 to 20:1, in the presence of 15 to 85 wt. % of water to a temperature above the melting point of the mixture of components (A) to (C) and then heating the dispersion obtained to a temperature within or above the phase inversion point, or producing the dispersion directly at this temperature, and subsequently cooling the dispersion to a temperature below the phase inversion range and possibly further diluting it with water.

IPC 1-7

C08J 3/03; A61K 7/00; A61K 7/48

IPC 8 full level

A61K 8/00 (2006.01); A61K 8/04 (2006.01); A61K 8/06 (2006.01); A61K 8/34 (2006.01); A61K 8/37 (2006.01); A61K 8/92 (2006.01); A61Q 19/00 (2006.01); C08J 3/03 (2006.01); C08J 3/05 (2006.01); C08K 5/103 (2006.01); C08L 91/06 (2006.01); C09K 23/00 (2022.01); C09K 23/34 (2022.01); C09K 23/38 (2022.01); C09K 23/42 (2022.01); D06M 13/02 (2006.01); D06M 13/144 (2006.01); D06M 13/148 (2006.01); D06M 13/17 (2006.01); D06M 13/224 (2006.01); D06M 15/227 (2006.01); D06M 15/53 (2006.01)

CPC (source: EP US)

A61K 8/044 (2013.01 - EP US); A61K 8/068 (2013.01 - EP US); A61Q 19/00 (2013.01 - EP US); C08J 3/03 (2013.01 - EP US); C08K 5/103 (2013.01 - EP US); C08L 91/06 (2013.01 - EP US); C09K 23/018 (2022.01 - EP US); D06M 7/00 (2013.01 - EP US); D06M 13/02 (2013.01 - EP US); D06M 13/144 (2013.01 - EP US); D06M 13/148 (2013.01 - EP US); D06M 13/17 (2013.01 - EP US); D06M 13/224 (2013.01 - EP US); D06M 13/2243 (2013.01 - EP US); D06M 15/227 (2013.01 - EP US); D06M 15/53 (2013.01 - EP US); A61Q 5/00 (2013.01 - EP US); C08J 2391/06 (2013.01 - EP US); D06M 2200/40 (2013.01 - EP US)

Designated contracting state (EPC)

BE CH DE ES FR GB IT LI NL PT

DOCDB simple family (publication)

DE 4337030 A1 19950504; EP 0725805 A1 19960814; JP H09504315 A 19970428; US 5723137 A 19980303; WO 9511936 A2 19950504; WO 9511936 A3 19950615

DOCDB simple family (application)

DE 4337030 A 19931029; EP 9403453 W 19941020; EP 94931535 A 19941020; JP 51238895 A 19941020; US 63763896 A 19960429