C - Chemistry – Metallurgy – 07 – D
Patent
C - Chemistry, Metallurgy
07
D
260/306.1, 260/5
C07D 209/48 (2006.01) G03F 7/008 (2006.01)
Patent
CA 1112246
Abstract of the Disclosure The compounds according to the invention have the formula Ia or Ib (Ia) Image or Image (Ib) in which R is a divalent organic radical. The novel bis-azidophthalic acid derivatives are suitable for the pro- duction of photo-curable mixtures. The novel compounds, and their mixtures, have better heat stability and oxidation resistance than known systems, whilst retaining equally good photosensitivity. Two different methods of preparation of the com- pounds are described.
313230
Greber Gerd
Kvita Vratislav
Zweifel Hans
Ciba Specialty Chemicals Holding Inc.
Fetherstonhaugh & Co.
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