Coating compounds based on silanes containing epoxide groups

US6361868B1 · kind B1 · utility

Assignees

• BAYER HEALTHCARE LLC · DE
• INSTITUT FUR NEUE MATERIALIEN gem. GmbH. · DE

Inventors

• Peter Bier · Krefeld, DE
• Herbert Krug · Ludwigshafen, DE
• Stefan Sepeur · Wadgassen, DE
• Sabine Stein · Nenzing, AT

Key dates

• Filing date: Apr 3, 2000
• Grant date: Mar 26, 2002
• Expiry date: Apr 3, 2020

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/31663
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

The present invention provides a coating composition which comprises at least one silicon compound (A) which has at least one radical which is bonded directly to Si, is not able to be separated hydrolytically and contains an epoxy group, a particulate material (B) which is selected from among oxides, oxide hydrates, nitrides and carbides of Si, Al and B and of transition metals and has a particle size within the range 1 to 100 nm, an Si, Ti, Zr, B, Sn or V compound (C) and at least one hydrolysable Ti, Zr or Al compound (D), which comprises the following ratio1.0 mol of the silicon compound (A),0.27 to 0.49 mol of the particulate material (B),0.36 to 0.90 mol of the compound (C) and0.14 to 0.22 mol of the compound (D).