Liquid crystalline polyesters for optical data storage

Details Liquid crystalline polyesters for optical data storage Liquid crystalline polyesters for optical data storage

C - Chemistry, Metallurgy

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C08G 63/12 (2006.01) C08G 63/16 (2006.01) C08G 63/682 (2006.01) C08G 63/685 (2006.01) C09K 19/38 (2006.01) G11B 7/25 (2006.01)

Patent

CA 2037369

ACR 2222 LIQUID CRYTALLINE POLYESTERS FOR OPTICAL DATA STORAGE Abstract of the Disclosure The invention comprises liquid crystalline polyesters suited to be used as a medium for optical data storage, especially reversible (or erasable) optical data storage. The polyesters comprise the polycondensation product of an aliphatic dicarboxylic acid or a derivative thereof and propane diol which on its center carbon bears a mesogenic substituent comprising two rings, either alicyclio or aromatic. Preferably also the dicarboxylic acid or derivative thereof is mesogenically substituted. The invention further comprises a medium for optical data storage containing polyesters of the above type.

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