Patent Number: 7,029,729

Title: Cholesteric liquid crystal additives

Abstract: The invention provides a cholesteric liquid crystal composition that includes at least one cholesteric liquid crystal precursor, and at least one non-liquid crystalline additive that is a non-liquid crystalline compound of formula I ##STR00001## The invention also provides cholesteric liquid crystal films and optical bodies formed from cholesteric liquid crystal compositions of the invention. The invention further provides an optical display that includes a display medium, and a reflective polarizer including a cholesteric liquid crystal composition in accordance with the invention.

Inventors: Spawn; Terence D. (West Lakeland Township, MN), Radcliffe; Marc D. (Newport, MN), Pokorny; Richard J. (Maplewood, MN)

Assignee: 3M Innovative Properties Company

International Classification: C09K 19/52 (20060101); C09K 19/20 (20060101); C09K 19/38 (20060101); C09K 19/54 (20060101); G02F 1/1335 (20060101)

Expiration Date: 4/18/02018