Improvements in the Production of Chemical Compounds from a certain Oil or Oils, or the Fatty Acids of same, and the Employ- ment of such Compounds in the Manufacture of Drying Oils, Varnishes, Enamels, Lacquers, Anti-fouling Compositions, and the like.
Year: 1898

page_text: Date of Application, 3rd June, 1898-Accepted, 3rd Sept., 1898
Improvements in the Production of Chemical Compounds from a
certain Oil or Oils, or the Fatty Acids of same, and the Employ-
ment of such Compounds in the Manufacture of Drying Oils,
Varnishes, Enamels, Lacquers, Anti-fouling Compositions, and the
like.
We, SIGMUND GEORGJEVITCH ROSENBLUM, Consulting Chemist, of Imperial
Chambers, Cursitor Street, in the County of Middlesex, and THE COMMERCIAL
OZONE SYNDICATE, LIMITED, of 31, Lombard Street, in the City of London, do
hereby leclare 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 follow-
ing statement ;--
This invention has reference primarily to the production of new chemical
compounds from the oil, known as Chinese or Japanese wood oil, or tung oil, and
more particularly of metallic salts of the acids contained in such oil. The
invention also includes the employment or treatment of such new products or
"
driers siccatives, varnishes, enamels,
compounds for the manufacture of
lacquers, cements, antifouling compositions and the like.
"
<<
The oil in question may be derived from the seeds of the fruit of a tree known
"Elocococca cordata" or
under the botanical name of "Eloeococca vernicia" or
Aleurites cordata" and belonging to the family of "Euphorbiaceae." In
Abura Giri" or
China this tree is known as "Tong Yeou" and in Japan as
Yana Kiri". The oil is called in Japanese "doucoua".
By cold or warm pressing of the seeds of the above described tree, or by
extraction of the crushed seed by means of ether, carbon bisulphide or other
solvents, an oil is obtained which, according to the particular process adopted,
will have a colour varying between pale yellow to dark brown. In its chemical
constitution this oil is mainly composed of the glyceride of eloeomargaric acid,
and, according to the conditions in which it has been kept of the glycerides of
the isomers of such acid, namely those of eloeostearic and cloeolic acid.
According to our invention, this oil is acted upon with alkalies, such for
example as the hydrates of potassium, sodium, and ammonia; the oil is thereby
saponified, that is to say there are formed alkaline salts of the acids contained
in the oil, which salts are all soluble in water.
Or we may effect saponification by first treating the oil with superheated
steam, glycerine and the free acids of the oil being obtained. These acids may
be separated from the glycerine in any convenient way and then combined with
metallic hydrates or other basic compounds to form salts.
Although we have stated the souce from which elocomargaric acid and its
isomers can be obtained, yet our invention is applicable to the treatment of the
said substances 'whether obtained from this source or from any other source, or
synthetically.
We have discovered that from the salts above described other metallic salts of
the acids contained in the oil can be obtained by the chemical process known

page_text: metallic salts, as by so doing the colouring matter is on precipitation incorporated
with the newly formed metallic compound, and if such compound be afterwards
dissolved in a suitable solvent such as methyl alcohol, naptha, or turpentine, a
coloured varnish is obtained. These volatile varnishes are particularly suitable
for varnishing or lacquering metals.
We have also found that the aluminium salts for example, when dissolved in a
volatile solvent, can be used for coating wood, paper, cardboard or other inflam-
mable material to render it fire and water-proof.
We may also employ the mercury or other poisonous salts of the acids before
described, as the active ingredient in paints, varnishes or other compositions used
for the prevention of fouling of ships' bottoms and other structures.
Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed we declare that we
do not herein claim the manufacture of siccative oils from tung oil by the use
of ozone which forms the subject-matter of an application for Letters Patent of
an earlier date applied for by us viz. 16147, dated 7th July 1897, but what we
do claim is as follows:-
1. The manufacture of the metallic salts of Chinese or Japanese oil or tung oil.
2. The manufacture of the manganese or lead salts of Chinese or Japanese oil
or tung oil or their mixtures and their application as "driers in the preparation
of siccative oils substantially as described.
"
3. The manufacture of a varnish or enamel from tung oil consisting in dissolv-
ing a metallic salt thereof in a volatile solvent, such as turpentine, and
subsequently evaporating the solvent substantially as described.
4. The manufacture of a coloured varnish or lacquer from tung oil consisting
in mixing a dye with the alkaline salt of the oil, before its transformation into
the metallic salt, and subsequently dissolving the compound in a solvent such
as methyl alcohol, substantially as described.
5. The manufacture of a coating, fire and water-proof material from tung oil
consisting in dissolving the aluminium salts thereof in a volatile solvent substan-
tially as described.
6. The manufacture of antifouling compositions from tung oil consisting in
the addition of the mercurial or other poisonous salts thereof to paints and com-
positions substantially as described.
DL1 LT1000
BOULT & WADE,
Agents for the Applicants.