发明名称 |
HIGHLY DURABLE HYDROPHOBIC COATINGS AND METHODS |
摘要 |
<p>Substrates have a hydrophobic surface coating comprised of the reaction products of a chlorosilyl group containing compound and an alkylsilane. Most preferably the substrate is glass. In one preferred form of the invention, highly durable hydrophobic coatings may be formed by forming a silicon oxide anchor layer or hybrid organo-silicon oxide anchor layer from a humidified reaction product of silicon tetrachloride or trichloromethylsilane, followed by the vapor-deposition of a chloroalkylsilane. Such a silicon oxide anchor layer will advantageously have a root mean square surface roughness of less than about 6.0 nm (preferably less than about 5.0 nm) and a low haze value of less than about 3.0% (preferably less than about 2.0%). Another embodiment of the present invention include the simultaneous humidified vapor deposition of a chlorosilyl group containing compound and a chloroalkylsilane. Specifically, in certain preferred embodiments, the simultaneous vapor deposition onto a glass substrate of silicon tetrachloride (SiCl4) and dimethyldichlorosilane (DMDCS) results in a hydrophobic coating comprised of cross-linked polydimethylsiloxane (PDMSO), which may then be capped with a fluoroalkylsilane (FAS). The cross-linked PDMSO layer may be formed on the surface of the glass substrate, or a silicon oxide anchor layer may be deposited under the cross-linked (PDMSO) layer. SiCl4 ,trimethylchlorosilane (TMCS), trichloromethylsilane and combinations of these silanes therein may also be simultaneously vapor deposited onto a substrate surface so as to achieve hydrophobic coatings of exceptional durability.</p> |
申请公布号 |
EP1328579(A4) |
申请公布日期 |
2008.07.30 |
申请号 |
EP20010966284 |
申请日期 |
2001.08.28 |
申请人 |
GUARDIAN INDUSTRIES CORP. |
发明人 |
MURPHY, NESTER, P.;PETRMICHL, RUDOLPH, HUGO |
分类号 |
C08L1/28;B05D1/18;B05D7/24;C03C17/00;C03C17/42;C09D4/00;C09D5/00 |
主分类号 |
C08L1/28 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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