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Eller; Bill A.
Gray, TN
No. of patents:

Patent Number Title Of Patent Date Issued
5473098 Process for the preparation of stilbenedicarboxylate esters December 5, 1995
Disclosed is a process for the preparation of 4,4'-stilbenedicarboxylate esters by a 4-step process starting with an alkyl p-formylbenzoate and utilizing intermediate phosphite and phosphonate compounds. The steps comprise(1) preparing an alkyl p-(hydroxymethyl)benzoate by hydrogenating
4650861 Azo dyes from 5-amino-4-nitropyrazole compounds and aniline couplers March 17, 1987
This invention relates to novel azo dyes containing a 4-nitropyrazole azo moiety which may be substituted, for example, with an alkyl group which itself may be substituted, and an aniline coupler which may be substituted. The dyes produce bright red shades on hydrophobic textile fibe
4444684 Azo dyes containing a diazotized 5-amino isothiazol moiety having thereon a sulfonic acid or sal April 24, 1984
This invention relates to azo dyes in which the diazotized amino component bears a sulfonic acid or salt group on its ring. These dyes have excellent dyeing properties on polyamide fibers, particularly nylon carpets and also impart color to cellulose acetate fibers and wool.The dyes corr

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