Flexible hardcoat

US11827810B2 · kind B2 · utility

Assignee

• 3M INNOVATIVE PROPERTIES COMPANY · US

Inventors

• Peter D. Condo · Lake Elmo, US
• David Scott Thompson · Lake Elmo, US
• John J. Stradinger · Roseville, US
• Catherine A. Leatherdale · Woodbury, US
• Richard J. Pokorny · Maplewood, US
• Steven D. Solomonson · Shoreview, US

Key dates

• Filing date: May 4, 2020
• Grant date: Nov 28, 2023
• Expiry date: May 4, 2040

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08K9/06
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

A hardcoat composition includes one or more multifunctional (meth)acrylate monomers, and a nanoparticle mixture dispersed within the one or more multifunctional (meth)acrylate monomers. The nanoparticle mixture includes a first population of semi-reactive nanoparticles having an average particle diameter in a range from 5 nm to 60 nm, and a second population of reactive nanoparticles having an average particle diameter in a range from 5 nm to 60 nm.