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
1998-03-16
2000-07-11
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
544282, 534752, 534798, 522 53, 522 50, 522 62, 522 63, 522 65, 522 26, 4302701, 4302881, 4302851, 430196, 430325, 430330, 430 18, G03F 726, G03F 7004, G03F 7027, C07D23726
Patent
active
060870702
ABSTRACT:
The invention relates to organic compounds having a molecular weight of less than 1000 comprising at least one structural unit of the formula (I) ##STR1## in which R.sub.1 is an aromatic or heteroaromatic radical which is capable of absorbing light in the wavelength range from 200 to 650 nm and in doing so brings about cleavage of the adjacent carbon-nitrogen bond.
The compounds represent photoinitiators for base-catalyzable reactions. Other subjects of the invention are base-polymerizable or crosslinkable compositions comprising compounds having a structural unit of the formula I, a method of implementing photochemically induced, base-catalyzed reactions, and the use of the compounds as photoinitiators for base-catalyzed reactions.
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Baudin Gisele
Turner Sean Colm
Ciba Specialty Chemicals Corporation
Hall Luther A. R.
Hamilton Cynthia
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