Process for enhancing the electrostatic chargeability of powder coatings of powders, and the use thereof for surface-coating solid objects

US5073579A · kind A · utility

Assignee

• Hoechst GmbH · DE

Inventors

• Hans-Tobias Macholdt · Darmstadt, DE
• Alexander Sieber · Frankfurt am Main, DE
• Claus Godau · Kiedrich, DE
• Albrecht Manz · Wiesbaden, DE

Key dates

• Filing date: Nov 3, 1988
• Grant date: Dec 17, 1991
• Expiry date: Nov 3, 2008

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09D5/034
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Process for enhancing the electrostatic chargeability of powder coatings or powders, and the use thereof for surface-coating solid objects. A process for enhancing the electrostatic chargeability of powder coatings or powders intended for surface-coating solid objects, by homogeneously incorporating at least one triarylmethane, azine, thazine and/or oxazine compound in an amount from about 0.01 to about 10 percent by weight into powder coatings or powders, the compounds mentioned being dissolved or dispersed in the powder coating system or powders.