Radiation imagery chemistry: process – composition – or product th – Diazo reproduction – process – composition – or product – Composition or product which contains radiation sensitive...
Patent
1988-05-31
1991-03-26
Bowers, Jr., Charles L.
Radiation imagery chemistry: process, composition, or product th
Diazo reproduction, process, composition, or product
Composition or product which contains radiation sensitive...
430165, 430191, 430193, 430326, 430330, G03F 7023, G03C 160
Patent
active
050028510
ABSTRACT:
A methylol-substituted trihydroxybenzophenone of the formula (I): ##STR1## This methylol-substituted trihydroxybenzophenone may be reacted with selected phenolic monomers during or after the formation of a phenolic novolak resin thereby said resin having at least one unit of formula (II): ##STR2## wherein R and R.sub.1 are individually selected from hydrogen, a lower alkyl group having 1 to 4 carbon atoms or a lower alkoxy group having 1 to 4 carbon atoms.
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Olin Corporation Chemical Abstracts Molecular Composition Search (55051-85-9), (7392-62-3), (105443-51-4), (105443-50-3), (61227-12-1), (61234-46-6), (61234-45-5), (61234-68-2), (71655-03-3), (61227-15-4), (58115-06-3), (25577-00-8) and (21554-79-0).
Bowers Jr. Charles L.
Olin Hunt Specialty Products Inc.
Simons William A.
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