A NEW " MANUFACTURE OF COLORING MATTERS AND THEIR SULPHO ACIDS OR SALTS FROM PHTALIC ANHYDRIDE, PHTALIMIDE, NITROPHTALIC ACID, CHLOROPHTALIC ACID, AND PYRIDINE AND CHINOLINE BASES
Year: 1883

page_text: LETTERS PATENT to Charles Denton Abel of No 28 Southampton Buildings
Chancery Lane in the County of Middlesex for an Invention of "A NEW
"
MANUFACTURE OF COLORING MATTERS AND THEIR SULPHO ACIDS OR SALTS
FROM PHTALIC ANHYDRIDE, PHTALIMIDE, NITROPHTALIC ACID, CHLOROPHTALIC
ACID, AND PYRIDINE AND CHINOLINE BASES communicated to him from
abroad by the Actien Gesellschaft für Anilin-Fabrikation of Berlin in the
German Empire, an Incorporated Company
PROVISIONAL SPECIFICATION left by the said Charles Denton Abel at the
Office of the Commissioners of Patents on the 14th March 1883.
CHARLES DENTON ABEL of No 28 Southampton Buildings Chancery Lane in the
County of Middlesex "A NEW MANUFACTURE OF COLORING MATTERS AND THEIR
SULPHO ACIDS OR SALTS FROM PHTALIC ANHYDRIDE, PHTALIMIDE, NITROPHTALIC
ACID, CHLOROPHTALIC ACID AND PYRIDINE AND CHINOLINE BASES.' [Communi-
cated to him from abroad by the Actien Gesellschaft für Anilin-Fabrikation of
Berlin in the German Empire, an Incorporated Company]
When Phtalic Anhydride is heated with Pyridine or Chinoline-bases, products
of condensation are formed, which generally have a yellowish tint and possess
tinctorial qualities.
The substances, from which yellow Phtalic derivatives may be obtained are :—
Pyridine, Picoline, the Methyle compounds of Pyridine and Chinoline-bases of coal
tar, boiling between 130 to 300°. ;
the corresponding bases obtained by dry distillation of nitrogenous refuses, such
as animal oils; synthetic Chinoline-bases and their homologues; also the so called
Chinaldine-bases obtained by the action of Paraldehyde on Aniline, its homologues
and Naphthylamine.
Yellow colors may also be produced by heating the double salts of the just
mentioned bases and Chloride of zinc with Phtalic Anhydride or by replacing the

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed. by
the said Charles Denton Abel in the Great Seal Patent Office on the
6th September 1883.
CHARLES DENTON ABEL of N° 28 Southampton Buildings, Chancery Lane, in the
County of Middlesex "A NEW MANUFACTURE OF COLORING MATTERS AND THEIR
SULPHO-ACIDS OR SALTS FROM PHTALIC ANHYDRIDE, PHTALIMIDE, NITROPHTALIC
ACID, CHLOROPHTALIC ACID, AND PYRIDINE AND CHINOLINE BASES A communi-
cation to me from abroad by the Actien Gesellschaft für Anilin-Fabrikation of
Berlin in the German Empire, an Incorporated Company
"
When Phtalic-Anhydride is heated with Pyridine or Chinoline bases, products
of condensation are formed, which generally have a yellowish tint and possess
tinctorial qualities.
The substances from which yellow Phtalic derivatives may be obtained are:-
The Pyridine, and Chinoline-bases contained in coal tar. or animal oil, boiling,
between 130°-300° Cels; their Methyle compounds, also the so called Chinaldine-
bases obtained either by the action of Aldehyde on Aniline, its homologues and on
Naphthylamine or by the reduction of Orthonitro-Benzylidenaceton.
Pure Chinoline does not produce a yellow color with Phtalic-acid.
Yellow colors may also be produced by heating the double salts of the just
mentioned bases and Chloride of zinc with Phtalic-Anhydride or by replacing the
Phtalic-Anhydride by its derivatives, for instance Phtalimide, Nitrophtalic-acid or
Chlorophtalic-acid.
For the manufacture of this color, one molecule of Phtalic-Anhydride is heated
with one molecule of the respective Pyridine-or Chinoline-base and Chloride of
zinc. The temperature depends on the base employed and varies between
200-250° Cels. The reaction is finished within a few hours.
The formed color is separated from the chloride of zinc, from the bases which
have not entered into reaction and from the Phtalic-Anhydride by boiling the melt
with spirits of salts diluted with water or by dissolving the melt in concentrated
sulphuric acid and pouring the solution into water.
In order to transform the yellow products obtained into a color soluble in water,
they are converted in the well known manner into Sulpho-acids, or into their
salts. Yellow sulpho-acids may also be obtained by heating the sulpho-acids of
the respective bases with Phtalic-Anhydride and Chloride of zinc.

page_text: fuming sulphuric acid, the mixture is heated on the water bath until it becomes
stiff, and is then dissolved in water and neutralized with lime. The lime-salt is
then converted with Carbonate of Soda into its Soda salt which represents the dye-
stuff.
Having thus described the nature of the said invention and in what manner the
same is to be performed, as communicated to me by my foreign correspondents, I
claim :-
First. The manufacture of yellow coloring matters soluble in spirits of wine
produced by the action of Phtalic-Anhydride, Phtalimide, Nitrophtalic-or
Chlorophtalic-acids on Chinoline-and Pyridine-bases.
Second. The conversion of the yellow coloring matters obtained as set forth in the
preceding claim into sulpho-acids or their salts, which are soluble in water,
substantially as herein described.
Third. The use of coloring matters produced as set forth in the preceding claims
for dyeing and printing.
In Witness whereof I the said Charles Denton Abel have hereunto set my hand
and seal this Twenty Ninth day of August in the year of our Lord One thousand
eight hundred and eighty three.
CHA. D. ADEL