Photosensitive composition of aromatic azido compound

Details Photosensitive composition of aromatic azido compound Photosensitive composition of aromatic azido compound

1977-12-16

1979-04-10

Kimlin, Edward C.

Gas separation: apparatus

Electric field separation apparatus

Electrode retaining or supporting means

96 49, 96 91D, G03C 152

Patent

active

041486552

ABSTRACT:
Disclosed is an alkali-soluble photosensitive composition having an excellent stability in photosensitivity and developing property over a long storage time and a high ink-sensitivity. The composition comprises an aromatic azido compound and a novolak resin prepared by condensation polymerizing, in the presence of an acid catalyst, formaldehyde, a phenol compound of the following formula (I) and another phenol compound or compounds of the following formula (II) and/or formula (III). ##STR1## wherein, R.sub.1 =H or -CH.sub.3, R.sub.2 =alkyl of 3-15 carbon atoms, phenyl or cyclohexyl, and R.sub.3 and R.sub.4 =alkyl of 1-3 carbon atoms.

REFERENCES:
patent: 2937085 (1960-05-01), Sevew et al.
patent: 3567453 (1971-03-01), Borden
patent: 3595656 (1971-07-01), Ruckert et al.
Kirk-Othmer; Encyclopedia of Chemical Technology; 2nd Ed.; vol. 15, 1968, pp. 182-185.

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