Protective films and related methods

US9723940B2 · kind B2 · utility

Assignee

• 3M INNOVATIVE PROPERTIES COMPANY · US

Inventors

• Adriana Paiva · Woodbury, US
• Jeffrey T. Anderson · Randlett, US
• Roy Wong · White Bear Lake, US
• Susan K. Yarmey · Woodbury, US
• Mark A. Strobel · Maplewood, US
• Joel A. Getschel · Osceola, US
• Albert I. Everaerts · Tucson, US
• Gregory F. King · Minneapolis, US
• John T. Brady · Mahtomedi, US
• Duane D. Fansler · Dresser, US
• Kanta Kumar · Woodbury, US
• Jeffrey D. Malmer · Mahtomedi, US
• Mario A. Perez · Burnsville, US
• Deborah A. Strobel · White Bear Lake, US
• Wendy L. Thompson · Roseville, US
• Michael C. Palazzotto · Woodbury, US
• Stefan H. Gryska · Woodbury, US
• Sharon Wang · Windom, US
• Mikhail L. Pekurovsky · Bloomington, US
• Mark F. Ellis · Windom, US
• Edward G. Stewart · Zimmerman, US
• Robert M. Jennings · Oldwick, US
• Gerald R.A. Hofmann · Oakdale, US
• Kelly J. Gibbens · Vadnais Heights, US
• Gezahegn D. Damte · Cottage Grove, US
• Jie Yang · Woodbury, US

Key dates

• Filing date: Oct 12, 2005
• Grant date: Aug 8, 2017
• Expiry date: May 12, 2029

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/31797
• WIPO field: Other special machines
• WIPO sector: Mechanical engineering

Abstract

A protective film includes a base layer and a wear layer, the wear layer comprising a UV cured hardcoat resin, and the UV cured hardcoat resin comprising surface modified silica nanoparticles. The protective film may comprise a pressure sensitive adhesive for adhesion to a floor. The protective film may be used, for example, as a protective floor finish.