Abrasive articles, assemblies, and methods with gripping material

US11351654B2 · kind B2 · utility

Assignee

• 3M INNOVATIVE PROPERTIES COMPANY · US

Inventors

• Paul D. Graham · Woodbury, US
• Douglas A. Davis · Cottage Grove, US
• Yugeun P. Yang · Windom, US
• Thomas E. Pahl · Cottage Grove, US
• James J. Kobe · Newport, US
• Christopher J. Lee · Portland, US
• Thomas B. Galush · Roseville, US
• John G. Petersen · Center City, US

Key dates

• Filing date: Nov 20, 2015
• Grant date: Jun 7, 2022
• Expiry date: Nov 20, 2035

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B32B27/08
• WIPO field: Machine tools
• WIPO sector: Mechanical engineering

Abstract

An abrasive article is provided that has a backing having opposed first and second major surfaces, an abrasive layer disposed on the first major surface, and a plurality of protrusions extending outwardly from the second major surface. The protrusions comprise a polymer having a Shore A hardness ranging from 5 to 90. These articles provide an alternative sanding solution enabling abrasive articles lacking an attachment layer to be handled effectively and efficiently, providing for a technically superior abrasive sheet on the marketplace that does not use or require an attachment layer.