Coating agents which can be hardened by the addition of isocyanate groups as well as by the radiation-induced addition of activated c-c double covalent bonds

US6617413B1 · kind B1 · utility

Assignee

• BASF SE

Inventors

• Bernd Bruchmann · Ludwigshafen, DE
• Erich Beck · Ladenburg, DE
• Hans Renz · Meckenheim, DE
• Rainer Koniger · Freinsheim, DE
• Reinhold Schwalm · Monsheim, DE
• Matthias Lokai · Enkenbach-Alsenborn, DE
• Wolfgang Reich · Frankenthal (Pfalz), DE

Key dates

• Filing date: Aug 29, 2001
• Grant date: Sep 9, 2003
• Expiry date: Aug 29, 2021

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/31551
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

Compounds having isocyanate groups with or without blocking, allophanate groups and free-radically polymerizable C—C double bonds, the C—C double bonds being in activated form by virtue of a carbonyl group attached directly to them or by virtue of an oxygen atom in ether function (activated double bonds), derived from polyisocyanates and alcohols A which in addition to the alcohol group also carry an activated double bond (compounds I). The invention additionally relates to radiation-curable formulations and coating compositions comprising the compounds I, to methods for coating using these substances, and to coated articles produced using these methods. Furthermore, the invention relates to the use of the compounds I in radiation-curable compositions such as in casting compositions, dental compounds, composite materials, sealing compounds, adhesives, troweling compounds, printing inks, in photostructurable compositions such as solder resists, photoresists, photopolymeric printing plates, and stereolithography resins.