Self-cross linking powder paint based on epoxy resins and the use thereof

US6749896B2 · kind B2 · utility

Assignee

• BASF COATINGS GMBH · DE

Inventors

• Rolf Boysen · Munster, DE
• Helmut Riestenpatt · Münster, DE
• Christoph-Stephan Hilger · Berlin, DE
• Carsten Vietze · Drensteinfurt, DE
• Josef Rademacher · Beverly Hills, US

Key dates

• Filing date: Dec 16, 2002
• Grant date: Jun 15, 2004
• Expiry date: Dec 16, 2022

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/31533
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

A self-crosslinking powder coating material, comprising(A) up to 50% by weight, based on the powder coating material, of a mixture of(A1) at least one epoxy resin with an epoxy equivalent weight (EEW) <800 g,(A2) at least one epoxy resin with an epoxy equivalent weight (EEW) of from 800 to 1500 g, and(A3) at least one epoxy resin with an epoxy equivalent weight (EEW) >1500 g,and(B) at least 50% by weight, based on the powder coating material, of at least one filler;and its use to coat shaped parts, especially engine blocks, which after coating are shaped by machining.