Photopolymerization process employing compounds containing acryloyl group and anthryl group
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United States of America Patent
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-
Nov 1, 1983
Grant Date -
N/A
app pub date -
Mar 25, 1982
filing date -
Apr 2, 1981
priority date (Note) -
Expired
status (Latency Note)
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Abstract
In a three stage process, a layer of a liquid composition containing a compound (A) having in the same molecule both at least one (meth)acryloyl group and at least one anthryl group is exposed to actinic radiation so that the layer solidifies due to photopolymerization of (A) through the (meth)acryloyl group(s), remaining, however, further photocrosslinkable. When desired, the solidified layer is exposed, as through a negative, to a substantially greater amount of actinic radiation, the parts so further exposed becoming more highly photocrosslinked through the anthryl group(s) and hence insoluble. An image is produced which can be developed by means of suitable solvents. Examples of (A) include 3-(acryloyloxy)-2-hydroxypropyl anthracene-9-carboxylate and its methacryloyl homologue.
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