Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From carboxylic acid or derivative thereof
Patent
1992-05-15
1993-10-12
Foelak, Morton
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From carboxylic acid or derivative thereof
546 26, 546 76, C08G 7514, C07D22118
Patent
active
052526992
ABSTRACT:
Provided is an improved process for the synthesis of 1-cyano-3H-dibenz[f,ij] isoquinoline-2,7-dione compounds, and process exhibiting improvements in quality of products, safety, fewer environmental concerns and economics when compared to presently known processes. The compounds are useful as colorants for polyesters, and selected compounds and when combined with small quantities of certain red colorants are particularly efficacious as blue toners for polyesters.
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"3-Azabenzanthrone Dyes" by C. F. H. Allen, Jean V. Crawford, R. H. Sprague, Eleanor R. Webster & C. V. Wilson, vol. 72, pp. 585-588.
Chamberlin Kim S.
Hilbert Samuel D.
Pruett Wayne P.
Quillen Donna R.
Salyer Preston K.
Eastman Kodak Company
Foelak Morton
Graves, Jr. Bernard J.
Heath, Jr. William P.
Mosley T.
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