Year: 1889

page_text: The
I, LOUIS EDGAR ANDÉS, of Chur, Switzerland, Chemist, do hereby declare
ature 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
This invention relates to a disinfecting Enamel or Paint which dries rapidly,
produces great brilliancy and can be prepared in any desired colour for use.
Paint is applicable for inside as well as an outside application of buildings, also for
articles or pieces of furniture, such as bedsteads, wardrobes, night commodes, tables
and for all other house appliances or fixtures, such as doors, wainscoats, skirtings &c.
particularly for woodwork and walls (Lime, Cement and Plastering) inside of dwelling
houses, for preventing the existence of vermin or insects, destroying their eggs and
arresting their further development. This disinfecting Enamel destroys contagious
germs, robs baccillae of their fructifying and growth promoting soil and rids
absolutely and safely the articles of furniture or parts besmirred therewith from the
seeds or germs of infections, owing to its being insensible to the action of acids,
alkalies, hot water or steam.
This Paint or disinfecting Enamel consists 1, of several resins; 2, of Solvents
therefor 3, of the disinfecting substances dissolved therein; 4, of colouring
materials or pigments of different kind.
1. The resins which I employ are known as copals of Manilla, Borneo, Gorontula,
Singapore and other Indian copals, there being no difference made between their
degree of hardness and their solubility in Aethylic and Methylic Alcohol, as they
are, under all circumstances, soluble according to the solving process hereinafter
described. The other resins that can likewise be used are Venetian, French, Austrian
or American Turpentine, Colophony (Rosin) and Elemi. The above named kind of
copals can be used in pieces, or in the form of powder or in blocks (agglomerated
powder). They can also be partly replaced by Sanderac; Pinous Resin, Shellac,
Sticklac, Scedlac, but the proportions of these which should be added to the above
may be indefinite. The proportions in which the different resins may be mixed are
variable.
2. The solvents for the above resins are 1, Methylic Alcohol; 2, Acthyl Alcohol;
3, Formic Ether; 4, Camphor; 5, Oil of Turpentine.
3. The disinfecting means are, Baric Acid, Carbolic Acid, or Salicylic Acid used
either separately or combined together in variable proportions.
4. The colouring matters or pigments are, Mercurial Compounds (Ginnabar) Zinc
5 Compounds, (Zine green, Zine White, or permanent White) Yellow Chrome, Green

page_text: chrome, Red Chrome and other Chromes, earthy colours, Umber, Ochre, Sienna
earth, Reddish Yellow Ochre, Sulphurous Compounds, Ultramarine Blue and Green
Ferrous Compounds, Parisian Blue, either alone or mixed in variable proportions with
other Blues in order to obtain the most varied colours.
The preparation of the Paint is effected by means of two principal operations. A. the
preparation of a mixture of the substances named under 1, 2 and 3 in the form of
a clear and homogeneous solution. B, the intimate mixing of this solution with one
of the colouring materials mentioned under 4, i.e. preparation of the solution with
which the said colouring materials are mixed. The copals mentioned in 1. or the
resins which represent them, such as Sandarac, Pinous Resin, Shellac, Stick lac and
Secdlac are very carefully picked or culled, that is to say, are freed from all woody or
other organic matter mixed therewith and are finely pulverized by means of any
suitable contrivance.
Should dust from the above copals be treated, the same must he first passed
through a sieve, while the remaining pieces must be likewise picked and then
pulverized. After this operation, the fine powder thus produced is placed in a large
wooden vat and kept for 3 hours in contact with water at 10° (1. in the proportion of
3 parts by weight of water to 1 part by weight of the powder, by means of a suitable
stirring or agitating apparatus. The mass is now allowed to rest for about 48 hours
at the expiry of which the clean powder has settled at the bottom, while the woody
and other organic matters if any be present will float at the top. The water and
matters being now decanted, the pulverized resin is collected in thick sacks and is
subjected in a dry place to a temperature of 120° C. whereby the powder is converted
into a compact mass and which is again finely pulverized after cooling by means of a
suitable apparatus and then spread over a drying floor in a well ventilated space
heated to a temperature of 18° (., so that the damp air may be continuously removed
therefrom, being subsequently dried in order to allow at first the moisture to escape
therefrom and then to increase the solubility of the pulverized resin by the absorption
The resinous powder remains 28 days in the drying chambers and is then
removed from the drying floors to the solution vessels or apparatus. This apparatus
for effecting the solution of the resinous podwer consists of closed boilers heated by
steam and furnished with a manhole for the introduction of the raw material, with an
outlet pipe connected with the stirring vessels which have yet to be used, with a safety
valve and an agitating apparatus. These boilers must be capable of withstanding
a pressure of 5 atmospheres. The crude material is placed in the solving apparatus
through the manhole, the latter is closed, steam admitted and the stirring apparatus
set in motion.
of ozone.
The proportions in weights and bulk of the crude material are variable and the
following combinations are only given by way of example.
2 parts in weight of Turpentine.
1 part in weight of Clemi.
15 parts in weight of one of the copals mentioned under 1.
parts in weight of Methylic Alcohol.
14 parts in weight of Aethyl Alcohol.
0.5 parts in weight of Camphor.
05 parts in weight of Formic Ether.
2 parts in weight of Oil of Turpentine;
or 4 parts in weight of Resin (colophany).
18 parts in weight of one of the copals mentioned under 1.
4 parts in weight of Methylic Alcohol.
19 parts in weight of Aethylic Alcohol.
0-7 parts in weight of Formic Ether.
08 parts in weight of Camphor.
5 parts in weight of Oil of Turpentine.
0.5 parts in weight of Elemi.
The solution is completed after an uninterrupted process of 24 hours duration and
the liquid obtained is placed in hermetically closed wooden vassals lined with Lood

page_text: in which are also immediately introduced the disinfecting means in proportions varying
from to 2 per cent. of Boric Acid, Carbolic Acid, or Salicylic Acid. These vessels
also provided with agitating means are kept in uninterrupted motion for a period of
48 hours after the addition of the disinfecting substances, in order to obtain a perfect
solution and consequent efficiency.
The liquid is conveyed from the mixing vessels to a filtering apparatus heated by
steam in which all the solid parts which may have been formed are separated, the
said liquid being now transferred into large vessels in which it is allowed to rest
for 6 weeks before withdrawing it to be mixed with the colouring matter or pigment.
Re 4: A suitable selection of colouring matters or pigments (in making which it
must be taken into consideration that the same do not form absolute combinations with
the resinous solution) forms the chief requirement of this disinfecting Enamel and for
this purpose, the materials mentioned under 4 are made use of. The proportions in
bulk are variable according to the specific gravity and to the covering property of the
colouring material, the following may serve as an example.
5 parts by weight of earthy colours (Ochre, Umber, Sienna-Earth).
18 parts by weight of the solution of resin
or 10 parts by weight of white of Lead and 16 parts by weight of the resinous
solution
or 10 parts by weight of Cinnabar and
22 parts by weight of the resinous solution.
The ground colours are mixed in different proportions with white of Lead in order
to soften their tones or shades, and Alcoholic coal tar dyes may also be used in order
to form with white of Lead or Lithopone very delicate tints for coating furniture and
house appliances. The colouring matters are placed in a
mixing vessels of metal provided with agitators, the requisite quantity of liquid being
finely powdered state in
added thereto and thoroughly incorporated therewith until an uniform mixture is
obtained which is finely ground in a colour mill (3 sets of rollers) so that the Paint
hus obtained may form an uniform, thin and very fine mass which is ready for
immediate use. The selection of the colouring material requires, as far as the
particular composition of the resinous solution is concerned, that the colours should
only sink to the bottom after a long time and they can when this occurs be again
asily mixed with the liquid.
Having now particularly described and ascertained the nature of this inven-
ion and in what manner the same is to be performed 1 declare that what I
Haim is
1. The manufacture of a disinfecting Enamel or Paint which dries rapidly, covers
vell, and possesses great brilliancy by means of Manilla,--Borneo,-Gorontola,—
Singapore, copal in combination with Elemi, Turpentine, Colophony, (Galipot), which
materials are solved in Methylic Alcohol, Aethyl Alcohol, Formic Ether, Camphor
nd oil of Turpentine and mixed with disinfecting substances such as Boric, Carbolic
r Salicylic Acid and with colouring material, as described.
2. The preparation of the copals and resins mentioned in Claim 1 by pulverization,
gitation in water decantation, filling into sacks and drying at a temperature of about
20 C., whereby the powder is converted into a compact mass which is pulverized,
ried on drying floors at a temperature of 18° C, so that the copals and resins
hould be brought by the absorption of ozone into a suitable state of solubility, as
escribed.
1