Thermoformable microsphere articles

US9650499B2 · kind B2 · utility

Assignee

• 3M INNOVATIVE PROPERTIES COMPANY · US

Inventors

• Christopher B. Walker, Jr. · Windom, US
• Joseph D. Rule · Woodbury, US
• Vivek Krishnan · Windom, US
• John C. Clark · White Bear Lake, US
• Steven J. McMan · Stillwater, US
• Toheeb B. Alabi · Woodbury, US
• Charlie C. Ho · Woodbury, US
• Ryan E. Marx · Cottage Grove, US
• Alexander J. Kugel · Woodbury, US

Key dates

• Filing date: Oct 4, 2013
• Grant date: May 16, 2017
• Expiry date: Oct 4, 2033

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/254
• WIPO field: Surface technology, coating
• WIPO sector: Chemistry

Abstract

There is provided an article comprising at least a first surface having a first binder layer selected from at least one of linear resins and resins having low cross link densities, where the first binder layer has a first major surface opposite a second major surface; and a plurality of microspheres at least partially embedded in the first major surface of the first binder layer. For at least a portion of the first major surface, the plurality of micro spheres may cover 30% to 50% of that portion, and the microspheres may be substantially uniformly spaced.