Diazotype materials

Details Diazotype materials Diazotype materials

1975-01-17

1978-12-26

Herbert, Jr., Thomas J.

Gas separation: apparatus

Electric field separation apparatus

Plural diverse electric fields

96 76R, G03C 152, G03C 302

Patent

active

041314689

ABSTRACT:
Modifying the surface of a diazotype material by incorporating an acrylic or methacrylic polymer into the diazotype sensitizing coating composition or coating the assembly with it so as to roughen the surface of the material thereby enabling nitrogen, which is liberated when the material is exposed to light, to escape from between the master and the diazotype material to prevent nitrogen accumulating between the two and hence avoiding slippage of one relative to the other.

REFERENCES:
patent: 2873207 (1959-02-01), Weegar et al.
patent: 3027256 (1962-03-01), Klimkowski et al.
patent: 3301679 (1967-01-01), Halperin et al.
patent: 3536490 (1970-10-01), Hochberg
patent: 3679419 (1972-07-01), Gillick
patent: 3704124 (1972-11-01), Conant

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