Patent · US Active

Flexible high refractive index hardcoat

US8343622B2 · kind B2 · utility

21Cited by

8References

28Claims

0Family size

Assignee

3M INNOVATIVE PROPERTIES COMPANY · US

Inventors

Lan H. Liu · Windom, US
Robert F. Kamrath · Mahtomedi, US
Encai Hao · Woodbury, US
Taun L. McKenzie · Hugo, US
Marc D. Radcliffe · Woodbury, US
Richard J. Pokorny · Maplewood, US
Christopher B. Walker, Jr. · Windom, US
Anthony M. Renstrom · Maplewood, US

Key dates

Filing date	Jul 1, 2008
Grant date	Jan 1, 2013
Priority date	—
Expiry date	Jun 15, 2031

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/31855
WIPO fieldMicro-structural and nano-technology
WIPO sectorChemistry

Abstract

Antireflective films comprising a flexible high refractive index layer that comprises at least 60 wt-% of inorganic nanoparticles, the nanoparticles having a refractive index of at least 1.60, dispersed in a crosslinked organic material. Also described are surface treated nanoparticles.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.