Patent · US Active

Perfluoropolyether urethane additives having (meth)acryl groups and hard coats

US8476398B2 · kind B2 · utility

18Cited by

39References

16Claims

0Family size

Assignee

3M INNOVATIVE PROPERTIES COMPANY · US

Inventors

Thomas P. Klun · Lakeland, US
Naiyong Jing · Woodbury, US
Richard J. Pokorny · Maplewood, US
Zai-Ming Qiu · Woodbury, US
Mark J. Pellerite · Woodbury, US
William D. Coggio · Hudson, US
Christopher B. Walker, Jr. · Windom, US

Key dates

Filing date	Feb 15, 2012
Grant date	Jul 2, 2013
Priority date	—
Expiry date	Feb 15, 2032

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/31551
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

Fluorocarbon- and urethane-(meth)acryl-containing additives and hardcoats. The hardcoats are particularly useful as a surface layer on an optical device.

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