Coating composition containing crosslinkable monomeric difunctional compounds having at least thirty carbon atoms

US6962730B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Walter H. Ohrbom · Wixom, US
• John Gilbert · Beverly Hills, US
• Patricia A. Herrel · Hartland Township, US
• Marvin L. Green · Brighton, US
• Joanne Casale · Warren, US
• Thomas Savino · Northville, US

Key dates

• Filing date: Jan 23, 2003
• Grant date: Nov 8, 2005
• Expiry date: Feb 23, 2023

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09D201/025
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

The invention provides coating compositions comprising a reactive component (a) which is substantially free of any heteratoms and is a not a crystalline solid at room temperature and which comprises from (i) 12 to 72 carbon atoms, and (ii) at least two functional groups, and (b) a crosslinking agent comprising a plurality of functional groups (iii) reactive with the functional groups (ii) of compound (a), wherein functional groups (ii) and (iii) are selected such that reaction there between produces a thermally irreversible chemical linkage. The coating compositions of the invention provide improved solids, chip resistance, flexibility and/or scratch & mar resistance while maintaining desirable and/or improved performance characteristics with regard to environmental etch, relative humidity, QCT, chip resistance, thermoshock resistance, cold crack resistance, adhesion and the like.