Laser imaging materials comprising carbon black in overlayer

Details Laser imaging materials comprising carbon black in overlayer Laser imaging materials comprising carbon black in overlayer

1983-10-13

1986-05-13

Schilling, Richard L.

Radiation imagery chemistry: process, composition, or product th

Imaging affecting physical property of radiation sensitive...

Radiation sensitive composition or product or process of making

430201, 430346, 430964, 3461351, 346 76L, G03C 172, G03F 726, G01D 900

Patent

active

045886741

ABSTRACT:
The laser imaging material comprises a laser-transparent support layer of, for example, polyester. A first overlying layer is laser-transparent and formed from a binder that is instantaneously thermally-chemically-decomposable with the production of a gas, for example, an acrylic or methacrylic homopolymer or copolymer, a cellulosic polymer, or a homopolymer or copolymer of stryene. A second overlying layer is formed from such a material, the same as or different from that of the first overlying layer, pigmented with carbon black. Upon laser irradiation through the support layer 10, selected portions of the carbon black are transferred to a suitable receptor surface such as paper or a lithographic plate.

REFERENCES:
patent: 2964867 (1960-12-01), Kingsley
patent: 3787210 (1974-01-01), Roberts
patent: 3962513 (1976-06-01), Eames
patent: 3964389 (1976-06-01), Peterson
patent: 4064205 (1977-12-01), Landsman
patent: 4245003 (1981-01-01), Oransky et al.

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