US1694129A - Manufacture of artificial leather - Google Patents

Manufacture of artificial leather Download PDF

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Publication number
US1694129A
US1694129A US87978A US8797826A US1694129A US 1694129 A US1694129 A US 1694129A US 87978 A US87978 A US 87978A US 8797826 A US8797826 A US 8797826A US 1694129 A US1694129 A US 1694129A
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US
United States
Prior art keywords
leather
manufacture
artificial leather
oil
scrap
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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US87978A
Inventor
Magnus Philip
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Individual
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Individual
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Priority claimed from GB788226A external-priority patent/GB263004A/en
Application granted granted Critical
Publication of US1694129A publication Critical patent/US1694129A/en
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Expired - Lifetime legal-status Critical Current

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Classifications

    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L89/00Compositions of proteins; Compositions of derivatives thereof
    • C08L89/04Products derived from waste materials, e.g. horn, hoof or hair
    • C08L89/06Products derived from waste materials, e.g. horn, hoof or hair derived from leather or skin, e.g. gelatin

Definitions

  • PHILIP MAGNUS or LEICHHARDT, NEAR SYDNEY, NEW sour wALEs'AUs'rnALIA.
  • This invention relates to an improved process for the manufacture of artificial leather and to a material resulting therefrom.
  • waste or scrap leather is utilized.
  • Such leather is preferably first sieved or otherwise suitably treated for the-purpose of separating therefrom grit or dirt or other extraneous matter.”
  • the cleaned scrap or waste leather is then treated in a compounded mixture composed of the following ingredients z-glue, glycerine, boiled linseed oil, carbolic oil, ammonium bichromate and calcium chloride.
  • Said treatment consists in adding to such mixture Whilst it is being heated or boiled a sufliciency of the scrap or waste leather. Usually it Will be found that to said mixture a proportion of approximately 25% of scrap or waste leather should be added during the heating or boiling operation. Before the scrap or waste leather is added to the mixture the latter is heated or boiled until the whole of the ingredientsthereof have become thoroughly incorporated.
  • the following ingredients in the following approximate proportions may be used Ptir ccnt.
  • Glue 7'0 Glycerine 12
  • Boiled linseed oil 10
  • Carbolic oil Ammonium bichromate 2 lalcium chloride 2 of boot or shoe heels and soles and other articles.
  • Such leather has been found to be less brittle; to have more waterproofing qualities; and to be easier of working than ordinary leather, Whilst its cost of production and the manufacture of articles therefrom are economical.
  • any scrap or waste leather ofasize too large for treatment as above described may previously be reduced in size to fit it for use in accordance with the process herein described.
  • Glue is employed as an adhesive or binder; glycerine prevents the molded mass from becoming brittle; ammonium bichromate renders the leather. compound waterproof and insoluble in water; while the calcium chloride prevents the glue from cracking.
  • Any substances other than carbolic oil can be utilized in the liquid compound, such oil having for its object to avoid putrefaction of the artificial leather.
  • any other suitable oil may be substituted; the said oil is added to the liquid compound to ensure the strength and drying qualities of the artificial leather.
  • carbolic oil and boiled linseed oil are to be read to include any oils suitable for the purposes herein described for which carbolic oil and boiled linseed oil are used in the liquid compound to which the scrap leather is added.

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  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Dermatology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Treatment And Processing Of Natural Fur Or Leather (AREA)

Description

Patented Dec. 4, 1928.
UNITED STATES PATENT OFFICE.
PHILIP MAGNUS, or LEICHHARDT, NEAR SYDNEY, NEW sour wALEs'AUs'rnALIA.
MANUFACTURE OF ARTIFICIAL LEATHER.
No Drawing. Application filed February 12, 1926, Serial No 87,978, and. in Australia March 2, 1925.
This invention relates to an improved process for the manufacture of artificial leather and to a material resulting therefrom.
In the carrying out of the process waste or scrap leather is utilized. Such leather is preferably first sieved or otherwise suitably treated for the-purpose of separating therefrom grit or dirt or other extraneous matter."
The cleaned scrap or waste leather is then treated in a compounded mixture composed of the following ingredients z-glue, glycerine, boiled linseed oil, carbolic oil, ammonium bichromate and calcium chloride. Said treatment consists in adding to such mixture Whilst it is being heated or boiled a sufliciency of the scrap or waste leather. Usually it Will be found that to said mixture a proportion of approximately 25% of scrap or waste leather should be added during the heating or boiling operation. Before the scrap or waste leather is added to the mixture the latter is heated or boiled until the whole of the ingredientsthereof have become thoroughly incorporated.
When the ingredients of the compound consisting of the said liquid mixture with the waste or scrap leather are thoroughly blended the mass is placed in suitable moulds where it is subjected to appropriate pressure, say a pressure of from one quarter to one ton per square 1nch.
As one example of the llquid mixture the following ingredients in the following approximate proportions may be used Ptir ccnt. Glue 7'0 Glycerine 12 Boiled linseed oil 10 Carbolic oil 2 Ammonium bichromate 2 lalcium chloride 2 of boot or shoe heels and soles and other articles. Such leather has been found to be less brittle; to have more waterproofing qualities; and to be easier of working than ordinary leather, Whilst its cost of production and the manufacture of articles therefrom are economical.
In case of necessity any scrap or waste leather ofasize too large for treatment as above described may previously be reduced in size to fit it for use in accordance with the process herein described. Glue is employed as an adhesive or binder; glycerine prevents the molded mass from becoming brittle; ammonium bichromate renders the leather. compound waterproof and insoluble in water; while the calcium chloride prevents the glue from cracking. Any substances other than carbolic oil can be utilized in the liquid compound, such oil having for its object to avoid putrefaction of the artificial leather. Similarly, for boiled linseed oil any other suitable oil may be substituted; the said oil is added to the liquid compound to ensure the strength and drying qualities of the artificial leather. In the appended claims the terms carbolic oil and boiled linseed oil are to be read to include any oils suitable for the purposes herein described for which carbolic oil and boiled linseed oil are used in the liquid compound to which the scrap leather is added.
What I claim as my invention and desire to secure by Letters Patent is 1. An artificial leather consisting of cleaned scrap leather incorporated in a mixture of glue, glycerine, boiled linseed oil -earbolic oil, ammonium bichromate and monium bichromate 2 and calcium chloride 2 In testimony whereof I aflix my signature. 1
PHILIP MAGNUS.
US87978A 1925-03-02 1926-02-12 Manufacture of artificial leather Expired - Lifetime US1694129A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AU1694129X 1925-03-02
GB788226A GB263004A (en) 1926-03-22 1926-03-22 Improvements in the manufacture of artificial leather

Publications (1)

Publication Number Publication Date
US1694129A true US1694129A (en) 1928-12-04

Family

ID=25646900

Family Applications (1)

Application Number Title Priority Date Filing Date
US87978A Expired - Lifetime US1694129A (en) 1925-03-02 1926-02-12 Manufacture of artificial leather

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US (1) US1694129A (en)
FR (1) FR613451A (en)

Also Published As

Publication number Publication date
FR613451A (en) 1926-11-18

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