Chester M Davis

US Patent:

RE308030, Nov 24, 1981

Filed:

Nov 9, 1977

Appl. No.:

5/850034

Inventors:

Chester Davis - Cincinnati OH

Assignee:

Scott Paper Company - Philadelphia PA

International Classification:

B41M 514

US Classification:

282 275

Abstract:

Iadd. Described herein are transfer and manifolding sheets having upon their surface a coating containing a substantially colorless dye salt derived from an organic sulfinic acid and an arylmethane dye base characterized by a logarithmic dissociation constant below 7, which upon transfer to a suitable receiving sheet is dissociated to the intensely colored ionic form of the dye to furnish a colored print. . Iaddend.

US Patent:

40102939, Mar 1, 1977

Filed:

Feb 13, 1975

Appl. No.:

5/549707

Inventors:

Chester Davis - Cincinnati OH

International Classification:

B05D 506
C09C 128

US Classification:

427214

Abstract:

Iridescent pigments, of the type which comprise colorless micaceous substrates having thereon at least one overcoating of an essentially transparent material with a refractive index usually over about 2. 0, can be enhanced in coloration by applying to them a solution of a coloring matter which possesses an absorption band complementary to the interference reflection color of the pigment, and which thereby absorbs that complementary color. The resulting vivid intensity of the iridescent coloration is far out of proportion to the concentration of the coloring matter and to the intensity of the adsorption band. The enhanced colors are useful in novel colorants, printing inks, recording systems, and copy papers.

US Patent:

40173267, Apr 12, 1977

Filed:

Jan 16, 1976

Appl. No.:

5/649689

Inventors:

Chester Davis - Cincinnati OH

International Classification:

C09C 128

US Classification:

106291

Abstract:

Iridescent pigments, of the type which comprise colorless micaceous substrates having thereon at least one overcoating of an essentially transparent material with a refractive index over about 2. 0, can be enhanced in coloration by applying to them a solution of a coloring matter which possesses an absorption band complementary to the interference reflection color of the pigment, and which thereby absorbs that complementary color. The resulting vivid intensity of the iridescent coloration is far out of proportion to the concentration of the coloring matter and to the intensity of the absorption band. The enhanced colors are useful in novel colorants, printing inks, recording systems, and copy papers.

US Patent:

40651584, Dec 27, 1977

Filed:

Feb 13, 1975

Appl. No.:

5/549706

Inventors:

Chester Davis - Newport KY

International Classification:

B41L 136
B41M 512
B41M 516

US Classification:

282 275

Abstract:

A novel printing surface for recording indicia by an intensely colored iridescent interference color is provided by a white thin film of an iridescent pigment on a base web. The vivid color is developed by a dye which may be contained in the pigment coating itself, as finely divided particles not apparent to the eye, or the dye may be applied from an external source, as in a manifolding system. The pigment comprises an essentially transparent micaceous substrate having thereon at least one overcoating of an essentially transparent material having a refractive index which is greater than about 2. 0, and may be mixed with up to 75% by weight of diluent material to form a low-cost recording composition.

US Patent:

42424283, Dec 30, 1980

Filed:

Oct 21, 1977

Appl. No.:

5/844373

Inventors:

Chester Davis - Cincinnati OH

International Classification:

G03C 176

US Classification:

430 9

Abstract:

An inorganic system of color photography in which colored images are recorded with compositions comprising a mixture of an iridescent pigment of the type displaying an interference-reinforced reflection color, and finely divided particles of a photosensitive material, such as a silver halide, which can be developed to give black or other light absorbing particles which will absorb light wavelengths complementary to the interference-reinforced reflection color of the iridescent pigment. The system does not require organic dyes in the final image, which is highly light-stable, and uses much smaller amounts of silver than conventional black and white photography.

US Patent:

RE307971, Nov 17, 1981

Filed:

Nov 9, 1977

Appl. No.:

5/850027

Inventors:

Chester Davis - Cincinnati OH

Assignee:

Scott Paper Company - Philadelphia PA

International Classification:

B41M 514

US Classification:

427288

Abstract:

Iadd. Described herein are methods of printing which comprise applying to an unfired silicate surface characterized by high ionizing power a substantially colorless associated salt of an arylmethane dye base characterized by a logarithmic dissociation constant below 7 and an organic sulfinic acid whereby physical contact of the associated compound and the silicate dissociates the compound to the intensely colored cation of the dye and produces color on the silicate surface. . Iaddend. . Iadd.

US Patent:

41848721, Jan 22, 1980

Filed:

Nov 3, 1976

Appl. No.:

5/738449

Inventors:

Chester Davis - Cincinnati OH

International Classification:

G03C 172
G03C 704
G03C 168
C03C 500

US Classification:

43365

Abstract:

An inorganic system of color photography in which colored images are recorded with compositions comprising a mixture of an iridescent pigment of the type displaying an interference-reinforced reflection color, and finely divided particles of a photosensitive material, such as a silver halide, which can be developed to give black or other light absorbing particles which will absorb light wavelengths complementary to the interference-reinforced reflection color of the iridescent pigment. The system does not require organic dyes in the final image, which is highly light-stable, and uses much smaller amounts of silver than conventional black and white photography.