mprovements in the Treatment or Oxidation of Fixed Oils, Fats and the like, and the Application thereof as a Menstruum for Paint, Varnish, Oil-cloth, and the like.
Year: 1894

page_text: Date of Application, 11th Dec.. 1894
Complete Specification Left, 31st Aug., 1895-Accepted, 11th Dec.,
1895
PROVISIONAL SPECIFICATION.
mprovements in the Treatment or Oxidation of Fixed Oils, Fats and
the like, and the Application thereof as a Menstruum for Paint,
Varnish, Oil-cloth, and the like.
I, SAMUEL BANNER, of 8 Fazakerley Street, in the City of Liverpool,
Manufacturing Chemist, do hereby declare the nature, of this invention to be as
follows:
In blowing air or oxygen either cold or heated into linseed and other fixed oils
after a time there comes a point where the oil becomes so solid that it cannot be
further treated. Oil in this condition is practically insoluble in ordinary solvents,
and therefore inapplicable for painting and cannot take up further oxygen from
the air.
:
Now my invention is designed to obtain if desirable even a still greater degree of
oxidation than has yet been achieved and yet obtain oil perfectly soluble for
painting, and it consists in introducing into the oil either before commencing the
blowing or during the blowing from time to time, one or more solvents preferably
hydrocarbons of the olefine, paraffine, or turpentine series. In this way I obtain
dissolved in the solvent or solvents oil at a high degree of oxidation which would
not combine with that very solvent (or solvents) if added thereto in the solidified
oxidised condition. This product can also be further thinned by additional solvent.
A combined oil and solvent of this nature is admirable for use as menstruum for
paints and for oil-cloth making and the like and is a quick drier, as the solvent has
only to evaporate, and the oxidised oil remains as a solid dry layer. I thus obtain
a very cheap painting oil with large body.
I am well aware that oils have been mixed with solvent before blowing, but in
such case the solvent has either been blown or evaporated out of the oil, and the
final product has been a hard material suitable for grinding up as a rubber
substitute.
My invention differs from all these in that from the beginning to end, and the
final product, my article is in the liquid or viscid state and that I do not produce
a solid at all.
Dated the 10th day of December 1804
WM. P. THOMPSON & Co.,
Of 6 Lord Street, Liverpool, Patent Agents for the Applicant.
COMPLETE SPECIFICATION.
Improvements in the Treatment or Oxidation of Fixed Oils, Fats and
the like, and the Application thereof as a Menstruum for Paint,
Varnish, Oil-cloth, and the like.
I, SAMUEL BANNER, F.C.S., of 8 Fazakerley Street, Liverpool in the County
of Lancaster, Chemical Manufacturer, 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:-
In the manufacture of oxidised linseed oil used for grinding or as a rubber
Pin 8d7

page_text: substitute at the present time, it is customary to blow air through linseed oil with
or without the addition of dryers such as oxides, and with the addition of heat
until there comes a point where the oil is so solid, that it cannot be further treated
in this manner. Oil in this condition is practically insoluble in ordinary solvents
and therefore inapplicable for painting, and can take up from an economic point of
view no further oxygen from the air.
Now my invention is designed to obtain if desirable as great or an even still
greater degree of oxidation than has yet been achieved, and yet obtain oil perfectly.
soluble for painting, and it consists in introducing into the oil, either before com-
mencing the blowing or during the blowing from time to time, or both before and
during the blowing, a solvent or mixture of solvents, preferably hydrocarbons of
the olefine, paraffin or turpentine series in such quantities that there is present
during the whole of the process and at the conclusion sufficient solvent to keep the
whole liquid. It will of course be evident that so long as the oil is fully liquid,
the solvent need not be added, but the oil must not be allowed to go too far in the
direction of solidification to prevent the action of the solvent. Large numbers of
these light hydrocarbon solvents are well known in the trade, and as they are all
very much like each other, and of almost equal. utility for this purpose, no rules
cau be given for choosing them beyond this, that hydrocarbons having boiling
points which indicate safety and free evaporating qualities are those most efficacious.
By the above process I obtain dissolved in the solvents, oil at a very high degree
of oxidation, which could not practically be dissolved in these very solvents if
added thereto in the solidified and oxidised condition. This product can also be
further achieved by additional solvents. In actual practice I find it most con-
venient to heat the drying oil to about 220 degrees Fah. or thereabouts, and then
blow, and when the temperature begins to rise, I cool the oil down and keep it at
about 150 degrees Fah. I have not mentioned dryers, but in my process the
addition of dryers assists oxidation of the oil just as it does in the ordinary process,
and besides the usual oxide dryers I may also use borate and sulphate of manganese,
or that compound known in commerce as the acetate of borate of manganese in
order to assist the oxidation. A combined oil and solvent of this nature with or
without dryers is admirable for use as a menstruum for paints and for oilcloth
making and the like. It is a quick dryer as the solvent has only to evaporate and
the oxidised oil remains as a solid dry layer. I thus obtain a very cheap painting
oil with large body; and it is to be borne in mind that in my invention the article
is from beginning to end (and the final product likewise) in the liquid or viscid
state and I do not produce a solid at all during the operation.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is :-
1. The improvement in the treatment or oxidation of fixed oils, fats and the
liker which consists in keeping them dissolved in a solvent during the whole or the
latter part of the process of oxidation, until that oxidation has reached or gone
beyond the point at which the substance would have become practically solid but
for the solvent, whereby a very highly oxidised oil, fat or the like is produced
dissolved in the solvent.
2. The application as a. menstruum. for paint, varnish, oilcloth and the like of
such, a highly oxidised oil, fat or the like made as claimed in the preceding
claim.
...
WM. P. THOMPSON & Co.,
Of Liverpool, Manchester, Birmingham, and London, Patent Agents.