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US 4,904,576 AGranted
Photosensitive cuprous halide materials and methods for their preparation
AssigneeAction Exploration Services
InventorRay S. Caldwell
Life of this patent
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AssigneeAction Exploration Services
InventorRay S. Caldwell
Estimating the term…
Photosensitive cuprous halide-type materials, particularly cuprous chloride and cuprous bromide materials, can be prepared from an anode product material produced from electrolysis of copper in an aqueous acid halide bath. Preferably, the copper electrolysis is carried out in a dilute hydrochloric acid solution. The resulting anode product materials are particularly sensitive in the presence of a polar molecule catalyst such as water or ammonia. In one highly preferred embodiment of this invention the anode product material is treated with the aqueous solution of ammonium salt of a water soluble organic acid (e.g. aqueous solution of ammonium ascorbate); one of the chief advantages of these materials is that they are highly photosensitive when dry and can be developed from a latent image prepared thereon.
A photosensitive element comprising:
A photosensitive element comprising;
A photosensitive element comprising a support and coated thereon at least one photosensitive layer comprising the anode product of a copper containing material produced by the electrolysis of copper in an aqueous acid halide bath, said anode product having been contacted with an aqueous ammonia solution of water soluble organic acid to impart photosensitivity thereto.
The process of preparing an image, comprising:
The process of preparing an image, comprising:
The process of preparing an image, comprising:
The process of preparing an image, comprising:
A process for preparing a photosensitive material comprising the steps of:
A process for preparing a photosensitive material comprising the steps of:
A photosensitive element comprising:
A photosensitive element comprising:
A photosensitive element comprising:
Dependencies are inferred from the claim text.