Micropowders

US5910558A · kind A · utility

Assignee

• BASF SE

Inventors

• Michael Schoenherr · Wausau, US
• Juergen Ahlers · Groß-Rohrheim, DE
• Hermann Buchert · Bad Dürkheim, DE

Key dates

• Filing date: Jul 21, 1997
• Grant date: Jun 8, 1999
• Expiry date: Jul 21, 2017

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08J2381/06
• WIPO field: Other special machines
• WIPO sector: Mechanical engineering

Abstract

Micropowders having spherical particles possessing an essentially smooth surface structure contain, as essential components, polyarylene ether sulfones or polyarylene ether ketones and are obtainable by prilling melts thereof or spray-drying solutions thereof.