Radiation imagery chemistry: process – composition – or product th – Diazo reproduction – process – composition – or product – Composition or product which contains radiation sensitive...
Patent
1998-09-25
2000-09-19
Baxter, Janet
Radiation imagery chemistry: process, composition, or product th
Diazo reproduction, process, composition, or product
Composition or product which contains radiation sensitive...
430146, 430149, 528327, 528360, 528367, 528373, G03C 152, C08G 6900
Patent
active
061209708
ABSTRACT:
The polybenzoxazole and polybenzothiazole precursors of the invention have the following partial structure: ##STR1## where: A.sup.1 to A.sup.7 are--independently of one another--H, F, CH.sub.3, CF.sub.3, OCH.sub.3, OCF.sub.3, CH.sub.2 CH.sub.3, CF.sub.2 CF.sub.3, OCH.sub.2 CH.sub.3 or OCF.sub.2 CF.sub.3 ;
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N.M. Ignatenko et al.: "Bis(3-amino-4-hydroxphenoxy)perfluoroarylenes as monomers fro producing polybenzoxazoles with hihger thermal and hydrolytic stability", Chemical Abstracts XP-002088350.
Keitmann Michael
Sezi Recai
Baxter Janet
Gilmore Barbara
Greenberg Laurence A.
Lerner Herbert L.
Siemens Aktiengesellschaft
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