Radiation imagery chemistry: process – composition – or product th – Imaging affecting physical property of radiation sensitive... – Radiation sensitive composition or product or process of making
Patent
1995-09-29
1998-07-07
Hamilton, Cynthia
Radiation imagery chemistry: process, composition, or product th
Imaging affecting physical property of radiation sensitive...
Radiation sensitive composition or product or process of making
522 40, 522904, 522905, 556436, 556427, 556425, 544 69, 544229, 546 14, 548406, 548110, 549 4, 549214, 552209, G03F 7075, C08J 328, C08G 7706, C08G 7718
Patent
active
057766584
ABSTRACT:
Compounds of the general formula I: (SIL--X--).sub.m IN (I), in which SIL is a radical of the formula Si(R.sup.1)(R.sup.2)(R.sup.3), where R.sup.1 is an alkyl, haloalkyl or alkoxy radical of 1 to 8 carbon atoms, an alkenyl radical, an alkenyloxy or acyloxy radical of 2 to 8 carbon atoms, an aryl or aryloxy radical of 6 to 10 carbon atoms, or a dialkyl-, diaryl- or alkylaryl-methyleneaminooxy radical having C.sub.1 -C.sub.4 -alkyl or C.sub.6 -aryl groups; and R.sup.2 and R.sup.3 are identical or different radicals with the meaning of R.sup.1 or X--IN; X is a group C.sub.n H.sub.2n ; IN is the radical of a compound which is active as a photoinitiator or photosensitizer and which has at least one carbonyl group located on an aromatic nucleus; m is a number from 1 to 4; and n is a number from 2 to 12, or of the formula II: Si.sub.o O.sub.o-1 (--X--IN).sub.p R.sup.4.sub.2o+2-p (II), in which R.sup.4 is a radical with the meaning of R.sup.1, and two or more radicals R.sup.4 may be the same as or different from one another; o is a number from 2 to 20,000; and p is a number from 1 to o, and the symbols X and IN are as defined above, the group X being attached to an aromatic carbon atom which is positioned ortho to the carbonyl group of IN. The compounds are prepared by reacting a compound IN--H with a compound SIL--X' or a compound Si.sub.o O.sub.o-1 (--X').sub.p R.sup.4.sub.2o+2-p in the presence of a ruthenium compound. They are suitable as radical-forming photoinitiators or as photosensitizers in silicone-containing photopolymerizable mixtures, in particular for the production of waterless-printing planographic printing plates.
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Gries Willi-Kurt
Niesert Claus-Peter
Pawlowski Georg
Przybilla Klaus-Juergen
Agfa-Gevaert AG
Hamilton Cynthia
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