Naphthalocyanine derivatives, production thereof, optical record

Details Naphthalocyanine derivatives, production thereof, optical record Naphthalocyanine derivatives, production thereof, optical record

1991-05-30

1992-05-05

Lee, Mary C.

Organic compounds -- part of the class 532-570 series

Organic compounds

Silicon containing

556417, C07F 704, C07F 710

Patent

active

051109689

ABSTRACT:
A naphthalocyanine derivative having as substituents at least one group of a formula: SR.sup.1 wherein R.sup.1 is --(CR.sup.2 R.sup.3).sub.x SiR.sup.4 R.sup.5 R.sup.6, in which R.sup.2 to R.sup.6 are H, alkyl groups, etc. is excellent in solubility in saturated hydrocarbon solvents and in absorption of semiconductor laser lights and thus, is suitable for producing optical recording media.

REFERENCES:
CA 110:163671y Laser recording medium containing phthalocyanines or naphthalocyanine derivatives. Nakagawa p. 648, Jun. 1986.
CA 112:45807r Optical recording materials. Myazaki et al. p. 699, Jul. 1989.
CA 114:44940h Metal Naphthalocyanine Dyes, Their Production and Near IR-Sensitive Optical Recording Medium Using Them. Tai et al. p. 100, Jan. 1989.
CA 111:244203v Electrophotographic Printing . . . Sensitizer. Miyazaki et al. pp. 758, Jul. 1987.

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