US649155A - Process of rendering leather waterproof. - Google Patents

Process of rendering leather waterproof. Download PDF

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Publication number
US649155A
US649155A US172300A US1900001723A US649155A US 649155 A US649155 A US 649155A US 172300 A US172300 A US 172300A US 1900001723 A US1900001723 A US 1900001723A US 649155 A US649155 A US 649155A
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Prior art keywords
leather
bath
rendering
wax
oil
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US172300A
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Charles Boehm
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
    • B05D3/10—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by other chemical means

Definitions

  • This invention relates to a novel manner of treating leather so as to render it impervious to water, oils, and acids.
  • my invention also the durability of the leather is increased and its liability to stretch is diminished.
  • a second bath is prepared 0011i posed of equal parts of alcohol and benzin, which is also slightly heated.
  • the leather the second bath and subjected to its action 4'0 for about half an hour. After removal it is dried in the fresh air and is then ready for use.
  • the second bath will cause the wax to be removed clean from the surface of the leather, and practice has demonstrated that 45 by the process described the wax will be retained within the pores of the leather.
  • leather prepared according to my invenp tion will be pliable, impermeable to liquids, and of increased strength and durability, and thus leather of a poor grade will be greatlyimproved in quality. So, also, the invention is particularly adapted for treating leather used for driving-belts and similar purposes, because it will become non-absorp- 55 tension.
  • What I claim is The process of treating leather, whichconsists in subjecting it first to abath of molten wax and nitrobenzol, then to a bath of alcohol and benzin, and finally drying the leather, substantially as specified. Signed by me at New York city, county I and State of New York, this 16th day of Jano5 uary, 1900.

Description

UNITED STATES CHARLES BoHM, OF NEW YORK, N. Y.
PROCESS OF RENDERiNG LEATHER WATERPROOF.
SPECIFICATION forming part of Letters Patent No. 649,155, datedMay 8, 1900. Application filed .T'auuary 17,1900. Serial No- 1,?2-3. (No specimens.)
To all whom, it may concern.-
Be it known that I, CHARLES 1363M, a citizen of Germany, and a resident of New York city, county and State of New York, have invented a certain new and useful Improvement in Processes of Rendering Leather Waterproof, of which the following is a specification.
This invention relates to a novel manner of treating leather so as to render it impervious to water, oils, and acids. By my invention also the durability of the leather is increased and its liability to stretch is diminished. Thus leather treated according to my invention will be found of superior utility in the various branches of manufacture-such as shoes, belting, trunks, harness,wearing=appare], pocket-books, &c. I
In carrying my invention into effect I proceed as follows:
First. I prepare a bath of about one (1) pound of Wax and half an ounce of oil of mirbane, (nitrobenzol,) which is an oil substance. After the wax has been meltedin a hot-water bath over a fire the oily substance is added and thoroughly stirred in. Into this heated bath the leather is immersed for from four to five hours, according to the degree of hardness of the leather under treatment. The oil of mirbane has the quality of completely combining with the wax without leaving any fatty deposit upon the leather after the latter has been subjected to the second bath. I have found that for the purposes of this invention oil of bergamot is an equivalent of the oil of mirbane.
' taken out of the first bath is immersed into -tive to oil and will not stretch under ordinary PATENT OFFICE.
Second. A second bath is prepared 0011i posed of equal parts of alcohol and benzin, which is also slightly heated. The leather the second bath and subjected to its action 4'0 for about half an hour. After removal it is dried in the fresh air and is then ready for use. The second bath will cause the wax to be removed clean from the surface of the leather, and practice has demonstrated that 45 by the process described the wax will be retained within the pores of the leather.
Leather prepared according to my invenp tion will be pliable, impermeable to liquids, and of increased strength and durability, and thus leather of a poor grade will be greatlyimproved in quality. So, also, the invention is particularly adapted for treating leather used for driving-belts and similar purposes, because it will become non-absorp- 55 tension.
What I claim is The process of treating leather, whichconsists in subjecting it first to abath of molten wax and nitrobenzol, then to a bath of alcohol and benzin, and finally drying the leather, substantially as specified. Signed by me at New York city, county I and State of New York, this 16th day of Jano5 uary, 1900.
CHARLES BOHM.
Witnesses:
WILLIAM SOHULZ, F. v. BRIESEN.
US172300A 1900-01-17 1900-01-17 Process of rendering leather waterproof. Expired - Lifetime US649155A (en)

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US172300A US649155A (en) 1900-01-17 1900-01-17 Process of rendering leather waterproof.

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US172300A US649155A (en) 1900-01-17 1900-01-17 Process of rendering leather waterproof.

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US649155A true US649155A (en) 1900-05-08

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2512389A (en) * 1946-05-13 1950-06-20 Charles G Shaw Waterproofing leather
US2652347A (en) * 1949-10-21 1953-09-15 Monie S Hudson Method of removing excess impregnant from impregnated wood
US2772185A (en) * 1953-05-15 1956-11-27 American Metaseal Mfg Corp Treating solid objects

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2512389A (en) * 1946-05-13 1950-06-20 Charles G Shaw Waterproofing leather
US2652347A (en) * 1949-10-21 1953-09-15 Monie S Hudson Method of removing excess impregnant from impregnated wood
US2772185A (en) * 1953-05-15 1956-11-27 American Metaseal Mfg Corp Treating solid objects

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