EP 1940972 A2 20080709 - DOUBLE-LAYER SURFACE-MODIFIED NANOPARTICULATE ZINC OXIDE, METHOD FOR THE PRODUCTION THEREOF, AND USE THEREOF
Title (en)
DOUBLE-LAYER SURFACE-MODIFIED NANOPARTICULATE ZINC OXIDE, METHOD FOR THE PRODUCTION THEREOF, AND USE THEREOF
Title (de)
ZWEISCHICHTIG OBERFLÄCHENMODIFIZIERTES NANOPARTIKULÄRES ZINKOXID, VERFAHREN ZU DESSEN HERSTELLUNG UND VERWENDUNG DESSELBEN
Title (fr)
OXYDE DE ZINC NANOPARTICULAIRE A MODIFICATION DE SURFACE BILATERALE, PROCEDE POUR LE PRODUIRE ET L'UTILISER
Publication
Application
Priority
- EP 2006010225 W 20061024
- DE 102005051671 A 20051028
Abstract (en)
[origin: WO2007048570A2] The invention relates to a double-layer surface-modified nanoparticulate zinc oxide, in which the first layer comprises one or several compounds of general formula A<SUP>1</SUP>-O-(CH<SUB>2</SUB>CH<SUB>2</SUB>-O)<SUB>n</SUB>-CH<SUB>2</SUB>-X and/or one or several compounds of general formula (II), wherein A<SUP>1</SUP>, A<SUP>2</SUP>, and A<SUP>3</SUP> independently represent saturated or unsaturated hydrocarbon radicals with 1 to 30 carbon atoms, n represents a number from 3 to 30, and X represents a group that has affinity to the zinc oxide surface, while the second layer comprises at least one compound selected among the group encompassing polyether carboxylic acids, polyether alkyl ethers, dialkyl polyethylene glycol esters, dialkylene polyethylene glycol esters, dialkyl polyethylene glycol ethers, and dialkylene polyethylene glycol ethers, polyglycerin esters, and surfactants from the substance class of sulfosuccinates and amphopropionates. The invention further relates to a method for producing said zinc oxides and the use thereof in dispersions, especially for cosmetic and antimicrobial purposes and promoting wound healing.
IPC 8 full level
A61K 8/27 (2006.01); A61K 33/30 (2006.01); A61Q 17/04 (2006.01); A61Q 19/00 (2006.01); C09C 1/04 (2006.01)
CPC (source: EP)
A61K 8/11 (2013.01); A61K 8/27 (2013.01); A61K 8/39 (2013.01); A61K 8/553 (2013.01); A61K 33/30 (2013.01); A61Q 5/006 (2013.01); A61Q 17/04 (2013.01); B82Y 30/00 (2013.01); C09C 1/043 (2013.01); A61K 2800/413 (2013.01); C01P 2004/64 (2013.01)
Citation (search report)
See references of WO 2007048570A2
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
DE 102005051671 A1 20070503; EP 1940972 A2 20080709; WO 2007048570 A2 20070503; WO 2007048570 A3 20071011
DOCDB simple family (application)
DE 102005051671 A 20051028; EP 06806491 A 20061024; EP 2006010225 W 20061024