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1. (WO2015044188) METAL EFFECT PIGMENTS MODIFIED WITH A SILANE LAYER CONTAINING AT LEAST TWO DIFFERENT BIFUNCTIONAL SILANES

Pub. No.:    WO/2015/044188    International Application No.:    PCT/EP2014/070345
Publication Date: Fri Apr 03 01:59:59 CEST 2015 International Filing Date: Thu Sep 25 01:59:59 CEST 2014
IPC: C09C 1/62
C09C 1/64
C09C 3/12
C09C 1/00
C09D 5/00
C08K 9/02
C09D 11/037
Applicants: SCHLENK METALLIC PIGMENTS GMBH
Inventors: WÜHR, Andreas
LANG, Nina
Title: METAL EFFECT PIGMENTS MODIFIED WITH A SILANE LAYER CONTAINING AT LEAST TWO DIFFERENT BIFUNCTIONAL SILANES
Abstract:
The invention relates to surface-modified metal effect pigments covered with a metal oxide layer, wherein a silane layer including at least two different bifunctional silanes is bonded to this layer. The invention is particularly suitable for metal effect pigments made from aluminium, titanium, zirconium, copper, zinc, gold, silver, tin, steel and iron, especially aluminium pigments. The invention additionally also relates to a process for preparing the surface-modified metal effect pigments and to the use thereof in water-based, solvent-based or radiation-curing coating compositions.