Hydrophobically coated abrasive grain

US5042991A · kind A · utility

Assignee

• LONZA LTD · CH

Inventors

• Reiner Kunz · Waldshut-Tiengen, DE
• Rudolf Strittmatter · Waldshut-Tiengen, DE

Key dates

• Filing date: Mar 12, 1990
• Grant date: Aug 27, 1991
• Expiry date: Mar 12, 2010

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09K3/1436
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

The strength and water resistance of the binding of abrasive grain on the basis of corundum or silicon carbide into synthetic resin bonded abrasive agents is improved by a surface treatment with microdispersed hydrophobic silicon dioxide.