Molded abrasive brush

US6261156A · kind A · utility

Assignee

• 3M INNOVATIVE PROPERTIES COMPANY · US

Inventors

• David E. Johnson · Maplewood, US
• Lawrence J. Mann · Lake Elmo, US
• Scott M. Mevissen · White Bear Lake, US
• Richard M. Pihl · Cottage Grove, US
• David C. Roeker · Hudson, US

Key dates

• Filing date: Jun 27, 2000
• Grant date: Jul 17, 2001
• Expiry date: Jun 27, 2020

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B29L2031/7654
• WIPO field: Machine tools
• WIPO sector: Mechanical engineering

Abstract

A molded abrasive brush having a backing with a plurality of bristles extending therefrom. The backing and bristles are preferably integrally molded. The brush is molded from a moldable polymer such a thermoset polymer, thermoplastic polymer, or thermoplastic elastomer. The moldable polymer includes a plurality of organic or inorganic abrasive particles interspersed throughout at least the bristles, and can be interspersed throughout the brush. The moldable brush can include an attaching means molded integrally with the backing. Also disclosed is a method of making a molded abrasive brush and a method of refining a workpiece surface with a molded abrasive brush.