Powder clearcoat dispersions (powder slurry clearcoats), method for producing them and the use thereof

US6818303B2 · kind B2 · utility

Assignee

• BASF COATINGS GMBH · DE

Inventors

• Walter Lassmann · Munster, DE
• Horst Hintze-Brüning · Hachenburg, DE
• Wolfgang Bremser · Münster, DE
• Ulrike Rockrath · Senden, DE

Key dates

• Filing date: Nov 19, 2002
• Grant date: Nov 16, 2004
• Expiry date: Jan 24, 2023

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/31504
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Powder clearcoat dispersions (powder slurry clearcoats) preparable by dispersing a powder clearcoat in an aqueous medium and wet milling the resulting powder slurry, at least one adduct of ethylene oxide and/or propylene oxide with at least one glycol being added to the powder slurry prior to wet milling; and the use of the powder slurry clearcoats for producing clearcoat finishes, especially as part of multicoat color and/or effect finishes.