C - Chemistry – Metallurgy – 09 – B
Patent
C - Chemistry, Metallurgy
09
B
260/249, 8/52, 2
C09B 23/10 (2006.01) D06L 3/12 (2006.01)
Patent
CA 1058176
Abstract of the Disclosure The present invention provides new coumarino-3,4-oxazoles. The novel compounds are suitable optical brighteners for high molecular organic materials, especially for polyesters, polyvinyl chloride and polyacryl nitrile.
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