AN IMPROVED MODE OF TREATING CERTAIN RESINS FOR OBTAINING A NEW ELASTIC SUBSTANCE
Year: 1884

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PROVISIONAL SPECIFICATION.
We, ANTONIN GERMOT, of No. 7, rue du bac, Paris, in the republic of France,,
Civil Engineer, and LOUIS RIVIERE, of No. 82, rue de l'université, Paris, in the
republic of France, Civil Engineer, do hereby declare the nature of the said
invention for "AN IMPROVED MODE OF TREATING CERTAIN RESINS FOR OBTAINING
A NEW ELASTIC SUBSTANCE" to be as follows:-
.
Solid and semi-solid resins are insoluble in oil and in spirit of turpentine unless .
they have been subjected to a preliminary treatment consisting of distillation up
to a loss of about twenty five per cent.
We have sought to discover other solvents than the essential oil of caoutchouc
and spirit of cajeput and we employ oleic acid for integrally dissolving solid and
semi-solid resins in proportions which vary with the kind of resin employed, that
is to say, from one to three times as much resin as oleic acid. The temperature
necessary for the solution varies from fifty to one hundred and fifty degrees
Centigrade; the product thus obtained is more or less elastic and in certain cases
may be compared with india rubber with which it may be incorporated; we give
the name of "elasteine" to the product obtained by the solution of these resins in
oleic acid; this product is soluble in benzine and sulphuret of carbon; it may be
employed for the manufacture of oil-varnishes and of articles of all kinds which
may be obtained by incorporating mineral or organic substances in variable
proportions with the "elasteine" such as cork, silica, asbestos and the like. We
can also employ for the integral solution of the resins ethylic, benzoic, or campholic
aldehyd. The products thus obtained may be employed for the manufacture of
varnishes or may be incorporated with the oleic "elasteine."

page_text: We ANTONIN GERMOT of N° 7 rue du bac, Paris in the Republic of France,
Civil Engineer and LOUIS RIVIERE of No 82 rue de l'université, Paris in the
Republic of France Civil Engineer do hereby declare the nature of the said
invention for "AN IMPROVED MODE OF TREATING CERTAIN RESINS FOR OBTAINING
A NEW ELASTIC SUBSTANCE and in what manner the same is to be performed
to be particularly described and ascertained in and by the following statement :—
"
The solution of solid and semi-solid copal resins in oil and in spirits of turpentine'
is a difficult operation, attended by a certain amount of danger and which requires
great care. Copal resins will not in fact dissolve except at a sufficiently high
temperature to cause a loss of about twenty five per cent of the resin to be
dissolved.
The loss of the essential oils which draw with them a portion of the resin is
indispensable. Under this condition alone the non-distilled portion will be entirely
dissolved in the oils and in the spirits of turpentine.
As the result of numerous experiments we have proved that oleic acid from
stearine works will entirely dissolve solid and semi-solid resins. The degree of
solubility besides varies with the nature of the resins to be dissolved. The
temperature also varies (from about fifty degrees to one hundred and fifty degrees
Centigrade) The product of the solution thus effected is soluble in spirits of
turpentine and in oil and can therefore be used for the manufacture of oil-
varnishes.
Solid and semi-solid gums are also soluble in ethylic and benzoic aldehyde,
liquid or melted camphor and chloroform. This solution is effected as bereinbefore
described without previous loss of oil. The solution of gum in the above named
aldehydes and liquid or melted camphor and chloroform forms an elastic material
having equivalent properties to those of the material (elasteine) produced by the
solution of the gums in oleic acid. The products of the solution are applicable for
the manufacture of varnish and plastic materials and may be incorporated with
oleic elasteine or with india rubber.
The integral solution of copal gums in oleic acid (effected in a similar manner to
that herein before described) gives a product which is applicable not only to the
manufacture of varnishes but also of new plastic materials. Products varying in
consistence may in fact be obtained by altering the proportions of the oleic acid
and gum as well as by varying the kind of gums employed.
We have also found the gums to possess a property which has not hitherto been
observed videlicit ;-that the product of the solution of the gums in oleic acid has
sometimes the elasticity and the consistence of india rubber. We have given to
this substance obtained by means of the said solution the name of "elasteine" and
the following are some of the applications for which it is suitable, viz;-
Firstly. The manufacture of varnishes.
Secondly. The manufacture of insulating cloth and the like. obtained by the
incorporation of organic substances such as cork, fibrous or textile materials
(modified or not) or mineral substances with the clasteine.
Thirdly. The manufacture of articles of all kinds whether obtained with the
pure elasteine or mixed with other substances or with the solution of elasteine in a
suitable solvent.
Fourthly. The manufacture of coverings or coatings of all kinds for cloth or
fabrics, metallic wire etc.

page_text: Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed we declare that what
we claim is
.
(1) Dissolving solid and semi-solid gums in the solvents hereinbefore described.
(2) A new product as hereinbefore described having a copal base and which is
not deprived of its essential oil.