Title:
HYDROPHILIC COATING BASED ON POLYSILAZANE
Document Type and Number:
WIPO Patent Application WO2005066285
Kind Code:
A3
Abstract:
The invention relates to hydrophilic coating for surfaces, containing one or several polysilazanes and an ionic reagent or mixtures of ionic reagents. The polysilazane is, in particular, a polysilazane of formula 1, (SiR'R"-NR" )n- (1), wherein R', R", R" can be identical or different and are either hydrogen or organic or metalorganic radicals. n is measured in such a manner that the polysilazane has a numerical average molecular weight ranging from 150 - 150.000 g/mol. In a preferred embodiment, the polysilazane is a perhydropolysilazane (R'=R"=R" = H). The ionic reagent is, preferably, a salt of a carboxylic acid, in particular a hydroxycarboxylic acid, or a cationic or anionic silane, or an oligomer or polymer. The invention also relates to a method for the production of the above-mentioned hydrophilic coatings.
Inventors:
DIERDORF ANDREAS (DE)
LIEBE HUBERT (DE)
WACKER ANDREAS (DE)
MOTZ GUENTER (DE)
LIEBE HUBERT (DE)
WACKER ANDREAS (DE)
MOTZ GUENTER (DE)
Application Number:
PCT/EP2004/014326
Publication Date:
August 18, 2005
Filing Date:
December 16, 2004
Export Citation:
Assignee:
CLARIANT INT LTD (CH)
DIERDORF ANDREAS (DE)
LIEBE HUBERT (DE)
WACKER ANDREAS (DE)
MOTZ GUENTER (DE)
DIERDORF ANDREAS (DE)
LIEBE HUBERT (DE)
WACKER ANDREAS (DE)
MOTZ GUENTER (DE)
International Classes:
C03C17/30; C09D183/16; (IPC1-7): C09D183/16; C03C17/30
Foreign References:
| US20050119402A1 | 2005-06-02 |
Other References:
DATABASE WPI Derwent World Patents Index; AN 1995-019468, XP002333993
DATABASE WPI Derwent World Patents Index; AN 1995-012064, XP002333994
PATENT ABSTRACTS OF JAPAN
DATABASE WPI Derwent World Patents Index; AN 1995-012064, XP002333994
PATENT ABSTRACTS OF JAPAN
Download PDF: