Thermal and mechanical barrier layers for optical recording elem

Details Thermal and mechanical barrier layers for optical recording elem Thermal and mechanical barrier layers for optical recording elem

1980-06-18

1982-07-20

Brammer, Jack P.

Radiation imagery chemistry: process, composition, or product th

Imaged product

Multilayer

430292, 430348, 430346, 430338, 430523, 430536, 430945, 430961, 346 11, 346 76L, 3461351, 346107R, 369284, 430 11, 430140, 430273, 358129, G03E 176, G01D 1510, G11B 724

Patent

active

043406556

ABSTRACT:
Improved thermal and mechanical barrier layers coated on the recording layer of an optical recording element are disclosed. The improved layers comprise water-soluble polymers having a glass transition temperature when dry of at least 100.degree. C. and preferably at least 150.degree. C. These barrier layers are easily coated and do not significantly degrade the performance of the element. Optional layers such as spacer layers and topcoat layers coated on the barrier layers are also disclosed.

REFERENCES:
patent: 3716844 (1973-02-01), Brodsky
patent: 3740761 (1973-06-01), Fechter
patent: 3990084 (1976-11-01), Hamisch
patent: 4000492 (1976-12-01), Willens
patent: 4064205 (1977-12-01), Landsman
patent: 4069487 (1978-01-01), Kasai et al.
patent: 4101907 (1978-07-01), Bell et al.
Bartolini et al., "Materials for Optical Recording", RCA Labs., Aug., 1977.
Hanley, The Condensed Chemical Dictionary, Eighth Edition, 1971, pp. 14, 15, 180, 181, 621, 795, 706, 712, 714.
Grant, Hackh's Chemical Dictionary, Fourth Edition, 1969, p. 141.

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