Light-sensitive o-quinone diazide containing copying layer

Details Light-sensitive o-quinone diazide containing copying layer Light-sensitive o-quinone diazide containing copying layer

1974-06-17

1976-07-13

Bowers, Jr., Charles L.

Gas separation: apparatus

Electric field separation apparatus

Electrode retaining or supporting means

96 33, 96 363, 96 49, 96 75, 96 86R, 96 86P, G03C 154, G03F 708

Patent

active

039691187

ABSTRACT:
This invention relates to an improvement in a light-sensitive copying layer containing an ester or an amide of an o-naphthoquinone diazide sulfonic acid or carboxylic acid together with an organic dyestuff and which changes its color shade upon exposure to light, the improvement comprising that it contains, calculated on its total content of o-naphthoquinone diazide compounds, 10 to 75 per cent by weight of a halide of o-naphthoquinone diazide-4-sulfonic acid and, as the dyestuff, an organic compound capable of salt formation in a quantity of 1 to 50 per cent by weight, calculated on the same basis.

REFERENCES:
patent: 3046115 (1962-07-01), Schmidt et al.
patent: 3046117 (1962-07-01), Sus
patent: 3061430 (1962-10-01), Uhlig et al.
patent: 3264104 (1966-08-01), Reichel
patent: 3326682 (1967-06-01), Endermann et al.
patent: 3495979 (1970-02-01), Laridon et al.
patent: 3635709 (1972-01-01), Kobayashi
patent: 3647443 (1972-03-01), Rauner et al.
patent: 3669658 (1972-06-01), Yonezawa et al.
patent: 3674495 (1972-07-01), Esaka
patent: 3759711 (1973-09-01), Rauner et al.
patent: 3764318 (1973-10-01), Laridon

Affiliated with

Also associated with

Rating

Light-sensitive o-quinone diazide containing copying layer does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Light-sensitive o-quinone diazide containing copying layer, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Light-sensitive o-quinone diazide containing copying layer will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1737338