Plastic composite moulded bodies obtainable by welding in an electromagnetic alternating field

US8524342B2 · kind B2 · utility

Assignee

• EVONIK DEGUSSA GMBH · DE

Inventors

• Harald Häger · Marienheide, DE
• Markus Pridöhl · Großkrotzenburg, DE
• Guido Zimmermann · Hanau, DE
• Karl Kuhmann · Schneverdingen, DE
• Rainer Göring · Borken, DE

Key dates

• Filing date: Sep 15, 2006
• Grant date: Sep 3, 2013
• Expiry date: Jan 23, 2030

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/1397
• WIPO field: Other special machines
• WIPO sector: Mechanical engineering

Abstract

The invention relates to plastics composite moldings obtainable via welding in an alternating electromagnetic field, in which the weld is obtained with the aid of a plastics material which comprises nano-scale, magnetic oxidic particles, which are composed of aggregated primary particles, and where the primary particles are composed of magnetic metal oxide domains whose diameter is from 2 to 100 nm in a non-magnetic metal oxide matrix or non-magnetic metalloid oxide matrix.