IMPROVEMENTS IN VULCANIZED RUBBER AND WATER-PROOF TEXTILE FABRICS
Year: 1886

page_text: I ELLA MARY FREELEY of the town of Plainfield County of Union and State of
New Jersey in the United States of America manufacturer of artificial leather do
hereby declare the nature of my invention for "IMPROVEMENTS IN VULCANIZED
RUBBER AND WATER-PROOF TEXTILE FABRICS" and in what manner the same
is to be performed, to be particularly described and ascertained in, and by the
following statement:―
Heretofore as is well known the most serious objection to the use of vulcanized
rubber whether hard or soft has been the disagreeable odor which emanates.
therefrom caused by the use of sulphur in vulcanization. This same defect is
present even to a greater degree in waterproofings partly composed of textile
fabrics as for instance in water proofings where the rubber, gums, or other water
proofing materials have been dissolved or cut by such malodorous articles as
naphtha benzine &c. In all these articles this fault has usually been imperfectly
obviated by the use of some substance which had a stronger and less disagreeable
smell than the sulphur naphtha benzine or other ill smelling ingredient of the
compound.
Besides being temporary this method of deodorization is open to the more serious
objection of giving the article an odor which though less unpleasant than the
original is still by no means agreeable.
The object of my invention is to destroy entirely the disagreeable smell in
vulcanized rubber and water-proof fabrics and to give to the said goods a
wholesome odor which will be objectionable to no one.
The process to which I subject the goods besides destroying the odor toughens
the goods and renders them less liable to be softened by oils or acids.
To accomplish this purpose I take a solution composed of salicylic acid and
alcohol preferably in the proportion of twenty grains of salicylic acid to half a
pint of alcohol and dip the article to be deodorized therein. This solution will
entirely deodorize the article without putting it through the process next mentioned
but I prefer making use of the additional process. as it toughens the goods and
makes them more readily absorb any perfume that may be added to them.
Moreover the process next mentioned has very great deodorizing qualities. I then

page_text: place the said article in a hot or cold solution made of fifty pounds of bark of
oak or the chemical extractions thereof fifty pounds of bark of hemlock or the
chemical extractions thereof fifty pounds of bark of sumac or the chemical
extractions thereof nine hundred gallons of water salicylate of soda in the
proportion of twenty grains of salicylate of soda to every two gallons of the
solutions of the barks and water. and a large tablespoonful of Russian jachten
extract dissolved in one pint of alcohol half a pint of ether and five grains of
salicylic acid. These proportions may be somewhat varied but I find the
proportions above mentioned to work most satisfactorily in actual use.
the barks be omitted from the solution the proportion of the other barks must be
correspondingly increased. When the article sought to be deodorized has been
subjected to this process the unpleasant odor has been entirely destroyed and the
article has a sweet and wholesome perfume and is tougher and more durable. If
desirable perfumes may now be applied to the article.
If one of
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:-
Hard or soft vulcanized rubber or textile fabrics of which vulcanized rubber is
a component part or water proofings partly composed of textile fabrics in which
the rubber gums or other water proofing compound is combined with naphtha
benzine or other strong smelling dissolvent either dipped in a solution of salicylic
acid and alcohol or dipped in a solution of bark of oak or the chemical extractions
thereof bark of hemlock or the chemical extractions thereof bark of sumac or the
chemical extractions thereof water salicylate of soda Russian jachten extract
alcohol ether and salicylic acid in the proportions and in the manner specified or
dipped in both of said solutions substantially as and for the purpose described.
davi
Dated this 5th day of February 1886