Oligomeric sterically hindered polyamine crosslinkers and coating compositions containing the same

US5712363A · kind A · utility

Assignee

• AKZO NOBEL N.V. · NL

Inventors

• Arie Noomen · Voorhout, NL
• Thomas Mezger · Zell am Harmersbach, DE
• Klaus Hobel · Zell am Harmersbach, DE
• Keimpe Jan Van Den Berg · Sassenheim, NL

Key dates

• Filing date: Aug 28, 1995
• Grant date: Jan 27, 1998
• Expiry date: Aug 28, 2015

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08F2800/20
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The present invention relates to coating compositions including a particular class of oligomeric sterically hindered polyamines as replacements for traditional blocked and unblocked polyamine crosslinkers. The use of these oligomeric sterically hindered polyamine crosslinkers resultss in a desirable pot life/cure speed relationship not generally available with traditional unblocked polyamine crosslinkers, as well as a lower VOC and often better appearance characteristics than generally available with the traditional blocked varieties.