Patent · US Active

Low Tg polyurethane protective display film

US10962688B2 · kind B2 · utility

1Cited by

8References

35Claims

0Family size

Assignee

3M INNOVATIVE PROPERTIES COMPANY · US

Inventors

David Scott Thompson · Lake Elmo, US
Ryan M. Braun · Windom, US
Joseph D. Rule · Woodbury, US
Catherine A. Leatherdale · Woodbury, US
Steven D. Solomonson · Shoreview, US
Peter D. Condo · Lake Elmo, US
John J. Stradinger · Roseville, US
Michael A. Johnson · Stillwater, US
Richard J. Pokorny · Maplewood, US
Derek W. Patzman · Savage, US
Peihui Zhang · Woodbury, US
Evan L. Breedlove · Lafayette, US

Key dates

Filing date	Jun 29, 2017
Grant date	Mar 30, 2021
Priority date	—
Expiry date	Feb 7, 2038

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC09J2475/006
WIPO fieldSurface technology, coating
WIPO sectorChemistry

Abstract

A display film includes a transparent cross-linked polyurethane layer. The transparent cross-linked polyurethane layer having a glass transition temperature of 10 degrees Celsius or less and a Tan Delta peak value of 0.5 or greater.

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