An Improved Insulating and Weather Acid and Fire Resistant Material, applicable as a Paint, or for other purposes.
Year: 1897

page_text: Date of Application, 12th July, 1897-Accepted, 2nd Oct., 1897
COMPLETE DIMUITICATION.
An Improved Insulating and Weather Acid and Fire Resistant
Material, applicable as a Paint, or for other purposes.
We, JOHANNES STOCKER, Chemist, and HERMANN ZANDER, Gentleman, both of
Rathenow in the German Empire, 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 :-
The object of the present invention consists in a process for the preparation of a
weather, acid, and fire resisting material which when in the dissolved condition can
be applied as a paint resistant to the influence of the weather.
This paint combines several advantages and is capable of application to a large
number of industrial purposes.
The preparation may be effected very cheaply. The invention may also be applied
in the form of a plastic mass as a substitute for hard rubber or as an insulating
material.
It can
The preparation in the fluid condition can be applied as a paint to roofs instead of
tar, to ships, boilers, conducting wires, also to the filling up of cracks in stone, the
pointing of walls and for the interior lining of vessels to contain acids.
moreover be prepared in plates of any length breadth and strength and has the
capacity of being easily worked in the lathe to form screw threads and the like. The
most varied colours and shapes as also patterns with raised or embossed ornament and
so forth can be produced in the plates. The possession of hygroscopic properties
does not in any way influence the quality of the mass. By the application of asbestos
cardboard the same can be rendered unhygroscopic and fire resistant so that a plate
of the thickness of 1 in.m. when exposed to a strong fire does not show the slightest
crack.
In the preparation of the mass as a paint for tent canvas earthnut oil is employed.
In the first instance in order to obtain
For ships earthnut oil and hydrochloric acid.
a greater water-tightness and flexibility of the canvas and in the latter case in order
to produce a harder mass. The preparation of the material itself is effected in the
following manner :-
Three parts of caustic alkali are dissolved in 20 parts of soda or potash water glass.
To this solution is then added 10 parts of powdered fireclay, and this mixture is
allowed to stand for about 2 hours until a partial solution has taken place. There are
then added to the solution two parts of burnt magnesite, two parts of clay powder
and six parts of asbestos powder or asbestos wool. Finally there is added the
colouring material by which it is designed to colour the finished plate. For instance,
there may be used silicate of alumina with glycerine in the fluid state for the purpose
of obtaining a green colour, graphite for the obtaining of a black colour, emery for
the obtaining of a red colour barytes for a white colour and so forth. By mixing
corresponding substances very various coloured sheets may be obtained.
thus prepared is stirred with five parts of earthnut oil and ground in a paint mill.
In the ground condition the same is applied as already stated as a paint for roofs,
walls, cardboard and so forth. By heating this paint with a mixture of ten parts of
earthnut oil and five parts of hydrochloric acid at the boiling point an impregnating
The mass

page_text: material is obtained for tent canvas, sail cloth and the like. For the preparation of
an insulating mass or of a substitute for hard rubber the preparation is made in the
same manner as for the manufacture of the paint only with the difference that
asbestos meal or asbestos wool and two parts of isinglass are mixed with it. Hereupon
the mass is cast in moulds subjected to a somewhat strong heat and dried for two or
three hours in a dry oven. The required form of the plates is preferably given by
hydraulic pressure, in which process steam at from 100 to 120 degrees Centrigrade is
first applied, and after the mass has been sufficiently exposed thereto a cooling fluid
may be made use of for the cooling of the plates.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed, we declare that what we
claim is
A process for the production of a weather acid and fire resisting material character-
ised by the solution of three parts of caustic alkali in 20 parts of soda or potash
water-glass and the addition to this solution of 10 parts fire-clay powder, 2 parts
burnt magnesite, 2 parts powdered clay, 6 parts asbestos powder or asbestos wool and
two parts of isinglass, which mixture is then coloured by the addition of colours such
as silicate of alumina for a green colour, graphite for a black colour, emery for a red
colour, barytes for a white colour and so forth.
Dated this 10th day of July 1837.
W. P. THOMPSON & Co.,
322, High Holborn, London, W.C., Patent Agents for the Applicants.