Optical recording elements having recording layers containing ca

Details Optical recording elements having recording layers containing ca Optical recording elements having recording layers containing ca

1994-12-13

1996-08-20

Edwards, Newton

Stock material or miscellaneous articles

Circular sheet or circular blank

428 642, 428 644, 428 648, 428913, 4302701, 43027011, 43027014, 430945, 4304951, 369283, 369288, B32B 300

Patent

active

055477275

ABSTRACT:
An optical recording element having a transparent substrate and on the surface of said substrate, a recording layer and a light reflecting layer wherein recording layer comprises a dye selected from the group consisting of cationic azocyanine dyes and mixtures of such dyes and the unrecorded layer is such that the real part of the refractive index (N) at 780 nm is at least 1.8 and the imaginary part (k) is 0.01 to 0.15.

REFERENCES:
patent: 4940618 (1990-07-01), Hamada et al.
patent: 5185194 (1993-02-01), Miyake
patent: 5246748 (1993-09-01), Gillberg-Laforce et al.
patent: 5248538 (1993-09-01), Kovacs
patent: 5272047 (1993-12-01), Kovacs
patent: 5294471 (1994-03-01), Evans

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