New Colouring Matters of the Triphenyl Methane Series, and the Method of Producing the same.
Year: 1896

page_text: Date claimed for Patent under Sect. 103 of Act,
being date of first Foreign Application (in 2nd Dec., 1896
France).
Date of Application (in United Kingdom), 5th Dec., 1896
Complete Specification Left, 1st Feb., 1897-Accepted, 8th May, 1897
Date of Application (in United Kingdom), 5th Dec., 1896
Complete Specification Left, 1st Feb., 1897-Accepted, 8th May, 1897
PROVISIONAL SPECIFICATION.
New Colouring Matters of the Triphenyl Methane Series, and the
Method of Producing the same.
I, JULES VILLE of 95 Boulevard Beaumarchais, Paris in the Republic of
France, Professor, do hereby declare the nature of this invention to be as
follows:-
I have noticed that not only aromatic hydrazines, but also fat hydrazines and
simple hydrazines react on rosolic acid, producing substances useful in dyeing.
Thus if I heat in a closed vessel
New Colouring Matters of the Triphenyl Methane Series, and the
Method of Producing the same.
I, JULES VILLE of 95 Boulevard Beaumarchais, Paris in the Republic of
France, Professor, do hereby declare the nature of this invention to be as
follows:-
I have noticed that not only aromatic hydrazines, but also fat hydrazines and
simple hydrazines react on rosolic acid, producing substances useful in dyeing.
Thus if I heat in a closed vessel
Rosolic acid
Sulphate of hydrazine
Caustic soda
10 kilograms
13
4
for 24 hours at about 100° C. I find that a red colouring matter is at first produced,
which afterwards changes into blue and finally is converted into violet.
In the preceding reaction I may replace hydrazine by methyl and ethyl
hydrazines.
The colouring matters obtained are of the same kind as those described in my
previous Patent No. 16039 of 1896 and may be used for dyeing in the same way.
Dated this 5th day of December 1896.
BOULT & WADE,
Agents for the Applicant.
New Colouring Matters of the Triphenyl Methane Series, and the
Method of Producing the same.
I, JULES VILLE, of 95 Boulevard Beaumarchais Paris, in the Republic of
France, Professor do hereby declare the nature of this invention and in what
manner the same is to be performed, to be particularly described and ascertained in
and by the following statement :-
I have discovered that not only aromatic hydrazines but also fatty hydrazines
and simple hydrazines react on rosolic acid producing substances useful in dyeing.
וי 'מF

page_text: for 24 hours at about 100° C., I find that a red colouring matter is at first produced
which afterwards changes into blue and finally is converted into violet.
In the preceding reaction I may replace hydrazine by methyl and ethyl
hydrazines.
The colouring matters obtained are of similar description to those described in
my previous Patent No. 16039 of 1896, and may be used for dyeing in the
same way.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed I declare that what I
claim is.
1. The process of manufacture of dye-stuffs consisting in causing fatty simple
or methyl and ethyl hydrazine to react on rosolic acid substantially as described.
2. Colcuring matters of the triphenyl methane series prepared in the manner
substantially as described.
BOULT & WADE,
Agents for the Applicant.