Non-linear optical active diols and polyurethanes prepared...

Details Non-linear optical active diols and polyurethanes prepared... Non-linear optical active diols and polyurethanes prepared...

C - Chemistry, Metallurgy

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C08G 18/67 (2006.01) C08G 18/38 (2006.01) C08G 63/68 (2006.01) C09K 19/38 (2006.01) G02F 1/35 (2006.01) G02F 1/361 (2006.01) G11B 7/245 (2006.01) G11B 7/25 (2006.01)

Patent

CA 1332200

Abstract Polyurethanes having high hyperpolarizability densities and other favorable properties can be easily prepared from non- linear optical active diols (NLO-diols) of a certain general formula, which have a delocalized ? electron system to which both an electron donor group and electron acceptor group are coupled directly (D?A system). The polyurethanes may be used in optical waveguides.

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