Alkali-Resistant Sol-Gel Coating
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United States of America Patent
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Issued Date -
Sep 24, 2009
app pub date -
Jun 12, 2006
filing date -
Jun 15, 2005
priority date (Note) -
Abandoned
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Abstract
To provide alkali-resistant sol-gel coatings, a coating is proposed within the scope of the invention that consists of
- a hydrolysable silane of the compounds TEOS, MTEOS or higher-chain alkyl silanes (di- tri- and tetrafunctional silanes), but preferably TEOS, MTEOS or mixtures thereof
- and a condensation catalyst based on
- a) secondary or tertiary bases (e.g. amino, mercaptosilanes)
- and/or
- b) Lewis acids as metal alkoxides, such as aluminium alkoxides, zirconium alkoxides and titanium alkoxides
- where the ratio (in wt. %) of hydroysable silane to condensation catalyst is between 99:1 and 70:30.
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