Back to results
US 6,221,535 B1Granted
Photorefractive composite
AssigneeThe Victoria University of Manchester
InventorsAlan M. Cox, Richard D. Blackburn, Frances A. Wade, David P. West, Terence A. King, David Leigh
Life of this patent
Estimating the term…
Abstract
A photorefractive composite comprises a charge transport matrix and an electrooptic dye having an aliphatic group of four or more carbon atoms.
Claims15
A photorefractive composite comprising a charge transport matrix and an electrooptic dye which has an aliphatic group of 8 or more carbon atoms and which plasticises the matrix without the need for a separate plasticiser, said aliphatic group having a branch of at least two carbon atoms.
A compound of the formula I
- where R1 is an alkyl group of at least 8 carbon atoms having a branch of at least two carbon atoms, R2 and R3 are the same or different and are alkyl groups having up to 3 carbon atoms, and X is carbon or nitrogen.
Dependencies are inferred from the claim text.