Superhydrophobic coating

US7914897B2 · kind B2 · utility

Assignee

• Universitat Zurich · CH

Inventors

• Jan Zimmermann · Mainz, DE
• Stefan Seeger · Donau, DE
• Georg Artus · Birmensdorf, CH
• Stefan Jung · Hersbruck, DE

Key dates

• Filing date: Jun 23, 2004
• Grant date: Mar 29, 2011
• Expiry date: Oct 11, 2026

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T442/218
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

A composition for coating comprising at least one compound of formula (I): R<a>Si(R<1>)n(X<1>)3-n, and optionally at least one compound of formula (II): R<b>Si(R<2>)m(X<2>)3-m, wherein R<a> is a straight-chain or branched C(1-24) alkyl group, R<b> is an aromatic group, such as an optionally substituted carbocyclic and heterocyclic group comprising five-, six- or ten-membered ring systems, which is linked by a single covalent bond or a spacer unit, such as a straight-chain or branched alkyl residue having 1 to 8 carbon atoms, to the Si- atom, R<1> and R<2> are, independently of each other a lower alkyl group, such as a straight chain and branched hydrocarbon radical having 1 to 6 carbon atoms, X<1> and X<2> are independently of each other a hydrolysable group, such as a halogen or an alkoxy group and n, m are independently of each other 0 or 1, with the proviso that if n and m are independently of each other 0 or 1, X may represent the same or different groups.