Photo-imaging utilizing alkali-activated photopolymerizable comp

Details Photo-imaging utilizing alkali-activated photopolymerizable comp Photo-imaging utilizing alkali-activated photopolymerizable comp

1974-09-13

1978-09-26

Brammer, Jack P.

Gas separation: apparatus

Electric field separation apparatus

Electrode cleaner, apparatus part flusher, discharger, or...

96 41, G03C 500, G03C 504

Patent

active

041166930

ABSTRACT:
A photopolymerizable composition useful in photo-imaging processes comprises an ethylenically unsaturated polymerizable compound and a photoinitiator comprising a combination of a photoreducible dye and an alkanolamine. The composition is substantially insensitive to visible light when in an acidic pH condition, yet may be made highly sensitive to visible light upon adjustment to a condition of alkaline pH. Imaging materials may be repeatedly sensitized and desensitized by pH adjustment and multiple-spaced exposures made prior to final washoff development processing.

REFERENCES:
patent: 3097097 (1963-07-01), Oster et al.
patent: 3418118 (1968-12-01), Thommes et al.
patent: 3495987 (1970-02-01), Moore
patent: 3573054 (1971-03-01), Tinker et al.
Chaberek et al., "The Journal of Physical Chemistry", vol. 69, No. 2, Feb. 1965, pp. 647-656

Affiliated with

Also associated with

Rating

Photo-imaging utilizing alkali-activated photopolymerizable comp does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Photo-imaging utilizing alkali-activated photopolymerizable comp, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Photo-imaging utilizing alkali-activated photopolymerizable comp will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2086774