Improved Manufacture of Artificial Rubber or Rubber Substitute.
Year: 1898

page_text: Date of Application, 31st Mar., 1898
Complete Specification Left, 16th Dec., 1898-Accepted, 21st Jan., 1899
PROVISIONAL SPECIFICATION.
Improved Manufacture of Artificial Rubber or Rubber Substitute.
"
I, JULIUS DEBORDE, of Hallesches-Ufer, 9, Berlin, S.W., in the Empire of
Germany, Merchant, do hereby declare the nature of this invention to be as
follows:-
This invention relates to an improved manufacture of artificial rubber or rubber
substitute.
By melting together about equal parts of glue, gelatine and glycerine and allow-
ing it to cool a substance is obtained which is very soft and elastic, but which,
however, can only resist pressure--even it be a considerable one, but a tensional
strain easily breaks it.
Its elasticity is therefore uneven or one sided said elasticity being greater than
that of rubber when the mass is subjected to pressure, but very small when
subjected to a pull or tension.
The applicant has succeeded by adding certain substances in producing a
substance which has a great elasticity nearly equal to that of rubber even when
subjected to a tensional strain. This substance is obtained by adding to a hot
molten mixture of glue or gelatine and glycerine, ichtyol oil or ichtyol oil com-
pounds or derivatives.
The ichtyol cr fish oil is as is well known an oil obtained by the dry distilla-
tion of bituminous material notably that found at Seefeld in the Tyrol and also
appears to be produced by the natural decomposition of dead fish.
Of the ichtyol compounds it is preferred to use for this purpose ichtyol sulphuric
acid and ammonium-sulpho-ichtyolate.
It is advisable also to add to the hot molten mass a small quantity of formal-
dehyde, thus increasing the resistance of the mass to heat, decomposition and
atmospheric influences.
ch 1898
BOULT & WADE
Agents for the Applicant.
COMPLETE SPECIFICATION.
Improved Manufacture of Artificial Rubber or Rubber Substitute.
I, JULIUS DEBORDE, of Hallesches-Ufer, 9, Berlin, S.W., in the Empire of
Germany, Merchant, 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 an improved manufacture of artificial rubber or rubber

page_text: If equal parts of gelatine and glycerine are melted together, a substance is
obtained which after solidification has great softness and considerable elasticity
so that it may be employed for padding.
This substance, however, although capable of resisting great pressure, easily
breaks when subjected to a tensional strain.
The elasticity is thus a one-sided one, it is greater than that of rubber as regards
pressure, but sinaller as regards pull or tension.
The inventor has succeeded in preparing from glue or gelatine and glycerine
by the addition of certain substances, a substance which, as regards elasticity,
comes very near rubber and in some respects is even more elastic than this
substance.
This compound is obtained by adding to a hot molten mass of glue or gelatine
a sulphuretted hydrocarbon, such as ichtyol oil or compounds of ichtyol oil.
Ichtyol oil is, as is well known, an oil obtained by dry distillation of a bituminous
material, found for instance in Seefeld in the Tyrol, and also seems to be partially
produced in the natural decomposition of fish offal.
This oil is substantially a sulphuretted hydrocarbon. Instead of pure oil,
chemical compounds of said oil, namely ichtyol sulphonic acid or its compounds
such as ammonium sulpho ichtyolate may be employed. It has been also found
that other sulphuretted hydrocarbons and their compounds may be used with an
equal amount of success for manufacturing rubber-like substances.
Thiols are, as is well known, obtained by the reaction of sulphur on paraffin,
and mineral oils and like hydrocarbons.
The reaction of sulphuric acid on thiols produces sulphonic acids which, on
being treated with alkalis or the like, give thio-sulpho-salts.
Compounds of thiols are also more or less suitable for being used in the manu-
facture of the new material.
Only small quantities of ichtyol oil or the like are added, said quantities varying
according to the degree of softness and elasticity to be obtained.
As an example it may be mentioned that a gum like mass may be produced by
melting together 250 parts of a hot mixture of glycerine and gelatine, and about
15 parts of ichtyol oil, but the quantity of oil will vary according to the degree of
elasticity required.
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. A rubber like substance obtained by adding ichtyol oil to a molten niass of
glue or gelatine and glycerine.
2. A rubber like substance obtained by adding a compound of ichtyol oil or
ichtyol sulphonic acid or its salts to a molten mass of glue or gelatine and
glycerine.
3 A rubber like substance obtained by adding, instead of ichtyol oil, other
sulphuretted hydrocarbons or thiols or their compounds, to a molten mass of glue
or gelatine and glycerine.
4. A rubber like substance obtained by melting together about 250 parts of a
hot mixture of glycerine & gelatine and about 15 parts of ichtyol oil, substantially
as described.
Dated this Sixteenth day of December 1898.