Patent · US Active

Protective display film

US10090480B2 · kind B2 · utility

2Cited by

12References

4Claims

0Family size

Assignee

3M INNOVATIVE PROPERTIES COMPANY · US

Inventors

Michael A. Johnson · Stillwater, US
David Scott Thompson · Lake Elmo, US
Catherine A. Leatherdale · Woodbury, US
John J. Stradinger · Roseville, US
Evan L. Breedlove · Lafayette, US
Steven D. Solomonson · Shoreview, US
Ryan M. Braun · Windom, US
Kevin R. Schaffer · Woodbury, US
Peihui Zhang · Woodbury, US
Joseph D. Rule · Woodbury, US

Key dates

Filing date	Aug 30, 2017
Grant date	Oct 2, 2018
Priority date	—
Expiry date	Aug 30, 2037

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02E10/549
WIPO fieldSurface technology, coating
WIPO sectorChemistry

Abstract

A display film includes a transparent polymeric substrate layer and a transparent aliphatic cross-linked polyurethane layer disposed on the transparent polymeric substrate layer. The transparent aliphatic cross-linked polyurethane layer has a glass transition temperature in a range from 11 to 27 degrees Celsius and a Tan Delta peak value in a range from 0.5 to 2.5. The display film has a haze value of 1% or less.

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