Light-sensitive diazoketone and azide compositions and photograp

Details Light-sensitive diazoketone and azide compositions and photograp Light-sensitive diazoketone and azide compositions and photograp

1971-02-09

1976-10-05

Bowers, Jr., Charles L.

Gas separation: apparatus

Solid sorbent apparatus

With programmed, cyclic, or time responsive control means

96 33, 96 35, 96 36, 96 363, 96 75, 96 91D, 96 91N, 260141, 260349, G03C 154, G03C 172

Patent

active

039842509

ABSTRACT:
Light-sensitive compositions including a polymer of the type that is reactable with an azide sensitizer when exposed to light and a sensitizing amount of a naphthalene sensitizer having ortho diazo and oxo substituents at the 1,2 or the 2,1 positions of the naphthalene nucleus and further having an azidosulfonyl substituent group of which the sulfonyl moiety is bonded directly to the naphthalene nucleus at the 4 or the 5-position, are advantageous in the preparation of positive-working photolithographic materials. IN the azidosulfonyl group, the azido moiety can be linked directly or indirectly to the sulfonyl moiety, such as in the compounds 2-diazo-1,2-dihydro-1-oxo-5(4'-azidophenoxysulfonyl)naphthalene and 5-azidosulfonyl-2-diazo-1,2-dihydro-1-oxonaphthalene. The light-sensitive compositions can be coated on support materials to prepare composite photographic elements having utility as photolithographic printing masters and photoresists for etching operations.

REFERENCES:
patent: 2690968 (1954-10-01), Powers
patent: 3046110 (1962-07-01), Schmidt
patent: 3046113 (1962-07-01), Schmidt et al.
patent: 3092494 (1963-06-01), Sus et al.
patent: 3130049 (1964-04-01), Neugebauer et al.
patent: 3143423 (1964-08-01), Reynolds et al.
patent: 3467518 (1969-09-01), Laridon et al.
patent: 3495979 (1970-02-01), Laridon et al.
patent: 3526503 (1970-09-01), Dunham et al.
patent: 3573917 (1971-04-01), Okamoto
patent: 3617271 (1971-11-01), Poot et al.
patent: 3617278 (1968-03-01), Holstead et al.

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