Radiation imagery chemistry: process – composition – or product th – Imaging affecting physical property of radiation sensitive... – Radiation sensitive composition or product or process of making
Patent
1987-07-02
1989-03-21
Michl, Paul R.
Radiation imagery chemistry: process, composition, or product th
Imaging affecting physical property of radiation sensitive...
Radiation sensitive composition or product or process of making
430495, 430945, 3461351, 540121, 540122, 540128, 540135, 540136, 540137, 540139, 540140, G11B 724, B41M 526, G01D 900, G03C 172
Patent
active
048142565
ABSTRACT:
An optical recording material possesses a light-absorbing layer on a base, the said layer containing one or more colorants of the formula (I) ##STR1## where M is two hydrogen atoms or Fe, Cu, Co, Ni, Pb, Cr, Mn, VO, TiO, ZrO, Nb, Ta, Pd, SiCl.sub.2, Sn or SnX.sub.2, X is Cl, Br or I, and A is a divalent radical of an unsaturated, unsubstituted or substituted carbocyclic ring system.
The colorants (I) present on the novel recording materials have a high absorption in the range from 650 to 850 nm and accordingly can be written on and read by means of a laser. The colorants can be applied as 20-1000 nm layers on a suitable base by vapor deposition or as a solution or dispersion, with or without the addition of a polymeric binder, by a conventional method.
The layers are very stable to atmospheric influences and daylight.
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Aldag Reinhard
Neumann Peter
BASF - Aktiengesellschaft
Buscher Mark R.
Michl Paul R.
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