A Composition for Waterproof Coating and Ornamenting Paper and other Surfaces.
Year: 1897

page_text: Date of Application, 27th Mar., 1897
Complete Specification Left, 15th Oct., 1897-Accepted, 26th Mar., 1898
PROVISIONAL SPECIFICATION.
A Composition for Waterproof Coating and Ornamenting Paper and
other Surfaces.
We, HUGO BITTNER, of 74, Rue d'Amelot, Paris, France, Engineer, and CYPRIEN
VILLEDIEU, of 148, Rue du Faubourg. St. Denis, Paris, France, Chemist, do hereby
declare the nature of this invention to be as follows:-
Our invention relates to a new waterproof composition for coating and water-
proofing paper applicable also to woven fabrics and generally to all surfaces to be
coated for purposes of ornamentation or utility. The composition has a base of
nitro-cellulose and the following is an example which gives good practical
results:-
Nitro-cellulose
Acetone, alcohol, ether or other solvent of nitro-cellulose
Toluol
Mono-nitro naphthaline-
Rosin oil or castor oil
3 to 5 parts.
100 parts.
20 parts.
5 to 10 parts.
5 parts.
The above proportions may however be varied according to the required degree
of fluidity or viscidity and each of the ingredients may be replaced by another
baving like chemical properties. For example for mono-nitro-naphthaline may
be substituted nitro-toluene, nitro-resin, nitro-phenol, nitro-cumol, and acetic
aldehydes, all of which are solvents of nitro-cellulose, either pure or with the
addition of alcohol or a mixture of camphorated alcohol. Similarly the nitro-
cellulose may be replaced by celluloid in solution. To reduce the combustibility
and render the composition uninflammable we add to the above solution about
10% of chloride of tín, of magnesia, or of any other chloride soluble in alcohol.
Paper, fabrics or other materials coated with this composition are absolutely
impervious. The composition also resists both acid and alkaline substances while
its fineness, touch, flexibility, and brilliancy are particularly remarkable and
aniline colours when mixed with it exhibit all their purity and brightness. The
aniline colours employed for colouring the composition are those soluble in alcohol
and more particularly the following:-Superfine night-blue, navy-blue, chrysoidine
primrose, diamond fuchsine, methylene violet, golden yellow, black, alcohol orange,
rose, safranine B, scarlet, corn poppy, bright green, brown, violet, red brown.
This composition without any admixture forms an absolutely transparent colour-
less coating or it may be coloured as above mentioned and still retain its trans-
parency. It may however be rendered opaque by the addition of a body colour of
zinc-white, sulphate of baryta, white lead, magnesia, or other inert impalpable
powder. The coating whether transparent or opaque is capable of being printed on
particularly by lithographic and chromo-lithographic processes.
The composition may be applied by any of the processes now employed for
coating paper and fabrics and as it dries instantly the necessity of air or stove
drying is avoided. The paper or fabric may be unwound from a reel and pass

page_text: between two rollers, one of which dips in the composition and applies a coating
which is spread very evenly by the action of brushes or equivalent means, after
which the paper thus coated is re-wound perfectly dry, at the opposite end of the
machine in readiness to be glazed by calendering or otherwise.
739
1
e 35
1 100%
A. M. & WM. CLARK,
Chartered Patent Agents, 53, Chancery Lane, London.
Nitro-cellulose
Acetone, alcohol, ether or other solvent of nitro-cellulose
Toluol
Mono-nitro-naphthaline
Rosin oil or castor oil
3 to 5 parts.
100 parts.
20 parts.
5 to 10 parts.
5 parts.
The above proportions may however be varied according to the required degree
of fluidity or viscidity and each of the ingredients may be replaced by another
having like chemical properties. For example for mono-nitro-naphthaline may
be substituted nitro-toluene, nitro-phenol, nitro-cumol, and acetic aldehydes,
all of which are solvents of nitro-cellulose, either pure ог with the
addition of alcohol or a mixture of camphorated alcohol. Similarly the nitro-
cellulose may be replaced by celluloid in solution. To reduce the combustibility
and render the composition uninflammable we add to the above solution about
10% of chloride of tin, of magnesia, or of any other chloride soluble in alcohol.
Paper, fabrics, or other materials coated with this composition are absolutely
impervious. The composition also resists both acid and alkaline substances while
its fineness, touch, flexibility, and brilliancy are particularly remarkable and
aniline colours when mixed with it exhibit all their purity and brightness. The
aniline colours employed for colouring the composition are those soluble in alcohol
and more particularly the following:-Superfine night-blue, navy-blue, chrysoidine
primrose, diamond fuchsine, methylene violet, golden yellow, black, alcohol orange,
rose, safranine B, scarlet, corn poppy, bright green, brown, violet, red brown.
This composition without any admixture forms an absolutely transparent colour-
less coating or it may be coloured as above mentioned and still retain its trans-
parency. It may however be rendered opaque by the addition of a body colour of
zinc-white, sulphate of baryta, fine white lead, magnesia, or other inert impalpable
powder. The coating whether transparent or opaque is capable of being printed on
particularly by lithographic and chromo-lithographic processes.
The composition may be applied by any of the processes now employed for

page_text: coating paper and fabrics and as it dries instantly the necessity of air or stove
drying is avoided. The paper or fabric may be unwound from a reel and pass
between two rollers, one of which dips in the composition and applies a coating
which is spread very evenly by the action of brushes or equivalent means, after
which the paper thus coated is re-wound perfectly dry, at the opposite end of the
machine in readiness to be glazed by calendering or otherwise finished.
Having now particularly described and ascertained the nature of the said in-
vention and in what manner the same is to be performed we declare that what we
claim is:-
1. The herein described composition for coating paper, fabrics, and other
materials, consisting essentially of a solution of nitro-cellulose rendered uninflam-
mable by the addition of a chloride soluble in alcohol, with or without the addition
of colouring or opaque matters as specified.
2. The application of the composition herein specified for coating paper, fabrics,
textile and other matters generally, for the purpose of waterproofing or ornamenting
the same.
Dalhin 15th day of Ontabon 1907
A. M. & WM. CLARK,
Chartered Patent Agents, 53, Chancery Lane, London.