Phosphorescent materials

Details Phosphorescent materials Phosphorescent materials

1976-12-07

1978-05-16

Hoffman, James R.

Coating processes

Fluorescent or phosphorescent coating

283 22, 428211, 428530, G09F 300, C09D 1110, C09K 1106

Patent

active

040899950

ABSTRACT:
A method of rendering a surface, especially a paper surface, phosphorescent, in which a composition comprising a phosphorescence activator and a soluble condensation product of formaldehyde and an amino compound is applied to the surface and is allowed to react in situ to form a phosphorescent insoluble condensation product. The composition may, for example, be in the form of a printing ink or a paper-coating mix.

REFERENCES:
patent: 2541184 (1951-02-01), Ackerman
patent: 3214382 (1965-10-01), Windsor
patent: 3214383 (1965-10-01), Moore et al.
patent: 3412036 (1968-11-01), McIntosh
patent: 3671451 (1972-06-01), Butterfield
patent: 3812052 (1974-05-01), Weston
patent: 3867302 (1975-02-01), Takano et al.
patent: 3922232 (1975-11-01), Schein

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