Improvements in the Manufacture of Antiseptic and Medicated Soaps, Ointments, and the like.
Year: 1898

page_text: Complete Specification Left, 16th Dec., 1898-Accepted, 18th Mar., 1899
PROVISIONAL SPECIFICATION.
Improvements in the Manufacture of Antiseptic and Medicated Soaps,
Ointments, and the like.
I, THOMAS GEORGE FERMOR HESKETH, Baronet, of Easton Neston, Towcester,
Northamptonshire, do hereby declare the nature of this invention to be as
follows:-
This invention relates to the production of soaps, ointments, embrocations and
similar preparations having antiseptic and medicinal properties, and depends upon
the property possessed by formaldehyde of forming condensation-products.
In carrying out this invention, oily or fatty substances are treated at various
temperatures with formaldehyde or its solutions under a reflux condenser. For
example, lanolin or wool fat may be treated in the above manner with an aqueous
solution of formaldehyde for some time on a water-bath.
The resulting compound which possesses a higher melting point than lanolin
may be used directly or incorporated with various substances to render its applica-
tion easy and pleasant, or to produce an embrocation.
When soap is required a condensation-product produced as above described may
be incorporated with the soap mass before pouring into the frames. Or, part of
the tallow or fatty substance to form the fatty acid of the soap may be treated
with formaldehyde as described and the condensation-product added towards the
end of the saponification-the manufacture then being proceeded with in the usual
way.
Dated this 10th day of March 1898
Improvements in the Manufacture of Antiseptic and Medicated Soaps,
Ointments, and the like.
I, SIR THOMAS GEORGE FERMOR HESKETH, Baronet, of Easton Neston, Towcester,
in the County of Northampton, 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: -
This invention relates to the production of soaps, ointments, embrocations and
similar preparations having antiseptic and medicinal properties, and depends upon
the property possessed by formaldehyde of forming condensation-products.
In carrying out my invention, oily or fatty substances are treated at suitable

page_text: temperatures with formaldehyde or its solutions under a reflux condenser at
normal atmospheric pressure or in a closed vessel at increased pressure. In order
to make my invention clear I will describe the production of the condensation
compound of lanolin which may be called lanoform. Any quantity of lanolin
is mixed with an excess of formaldehyde solution and introduced into a vessel
fitted with a reflux condenser so that any vapours which might otherwise escape
may be condensed and returned to the containing vessel. By way of example,
it may be stated that 1 part by volume of 40% formaldehyde solution to 4 parts
of lanolin will give a satisfactory result, but any other proportions may be used
provided that the formaldehyde is in excess.
The contents of the vessel are heated
in the usual manner either by boiling water in a water bath or by steam to a
temperature of about 100° ( for several hours according to the quantity of
material being manufactured. On a small scale 5 to 6 hours is found sufficient.
The excess of formaldehyde solution is then removed, and the resulting com-
pound is found to have a higher melting point than lanolin and when hot to smell
of formaldehyde. This compound is found to exercise most beneficial action upon
the skins of man and animals and may be applied directly or incorporated with
various well known substances such as vaselin, olive oil, cold cream and the
like to render its application easy and pleasant or may be mixed with lanolin.
When soap is required a condensation product as above described may be in-
corporated with the soap mass before pouring into the cooling frames, or part of
the fatty substance of the soap may be previously treated with formaldehyde as
described and the condensation product added towards the end of the saponifica-
tion the manufacture being then proceeded with in the usual manner. The
amount of condensation product incorporated with the soap mass may be varied
as desired or as found suitable to the specific uses to which the soap is to be
applied, but I find 5 per cent. to be a good proportion; while for ointments &c. the
amount varies from 5 per cent. to 25 per cent. according to the specific purpose
for which the ointment &c. is intended. For a cream for chapped hands and
the like for example the proportion might be from to 10 per cent. while for
ointments as much as 25 per cent. might be employed.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, I declare that what
I claim is
1. The manufacture of condensation compounds of formaldehyde with lanolin
or other oily or fatty substance consisting in mixing the oily or fatty substance
with an excess of formaldehyde, then heating the mixture to a suitable tempera-
ture and under pressure if necessary, and afterwards removing the excess of
formaldehyde, substantially as described.
2. The manufacture of medicinal and antiseptic ointment, embrocation and
the like from condensation compounds formed in the manner indicated in the
preceding claim consisting in incorporating said compounds with vaselin, olive
oil, cold cream, lanolin and the like, substantially as described.
3. The manufacture of soap from condensation compounds formed in the
manner indicated in Claim 1 hereof, consisting in incorporating said compounds
with the scap mass before pouring into the cooling frame, substantially as
described.
T +1441 1....
1000
F. W. GOLBY,
36, Chancery Lane, London, W.C., Patent Agent for the Applicant.