US103517A - Improvement in the preparation of artificial leather from scrap leather - Google Patents
Improvement in the preparation of artificial leather from scrap leather Download PDFInfo
- Publication number
- US103517A US103517A US103517DA US103517A US 103517 A US103517 A US 103517A US 103517D A US103517D A US 103517DA US 103517 A US103517 A US 103517A
- Authority
- US
- United States
- Prior art keywords
- leather
- improvement
- preparation
- scrap
- artificial
- Prior art date
- 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
Links
- 239000010985 leather Substances 0.000 title description 20
- 239000002649 leather substitute Substances 0.000 title description 6
- 238000002360 preparation method Methods 0.000 title description 4
- 239000004744 fabric Substances 0.000 description 14
- 229920001195 polyisoprene Polymers 0.000 description 10
- 229940095054 Ammoniac Drugs 0.000 description 8
- 241000779819 Syncarpia glomulifera Species 0.000 description 4
- 229940036248 Turpentine Drugs 0.000 description 4
- RTZKZFJDLAIYFH-UHFFFAOYSA-N diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000001739 pinus spp. Substances 0.000 description 4
- 235000015096 spirit Nutrition 0.000 description 4
- 239000000899 Gutta-Percha Substances 0.000 description 2
- 229920000588 Gutta-percha Polymers 0.000 description 2
- 240000000342 Palaquium gutta Species 0.000 description 2
- 241001043922 Pensacola Species 0.000 description 2
- 239000005864 Sulphur Substances 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 239000004615 ingredient Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L89/00—Compositions of proteins; Compositions of derivatives thereof
- C08L89/04—Products derived from waste materials, e.g. horn, hoof or hair
- C08L89/06—Products derived from waste materials, e.g. horn, hoof or hair derived from leather or skin, e.g. gelatin
Definitions
- the object of this invention is to so treat the scraps and pieces of leather which are generally thrown away as useless by shoemakers and others that a fabric resembling leather in strength, flexibility, and appearance will from such pieces be produced.
- the pieces of leather are first ground or reduced to a fine powder, or rather fibrous pulp, for which purpose they are passed through a suitable mill.
- This fibrous mass is mixed with caoutchouc when the same is in a crude state or dissolved in spirits of turpentine.
- the mass is well stirred or kneaded until caoutchouc has about the consistency of glue.
- spirits of ammoniac are added and the mixture still more agitated until it forms a thick homogeneous dough.
- the ammoniac and caoutchouc are used in about equal proportions.
- the proportion of leather to the other ingredients can vary in accordance with the uses to which the fabric is to be put, being preferably between fifty to ninety per cent.
- the mass after having arrived at the lastmeutioned state, is compressed in forms or between rollers.
- the fabric can be produced in varying thicknesses, as thin as paper or an inch thick.
- the fabric produced by this process is fully equal in strength, toughness, and all other wearing qualities to natural leather, and can be used with safety wherever natural leather is applicable.
Landscapes
- 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
UNITED STATES PATENT-OFFICE.
SOREN SORENSON, OF EBELTOFT, DENMARK, ASSIGNOR TO HIMSELF, SOPHUS ORTING, OF SAME PLACE, AND P. J. MCKENZIE ORTING, OF
PENSACOLA, FLORIDA.
IMPROVEMENT IN THE PREPARATION OF ARTIFICIAL LEATHER FROM SCRAP LEATHER, &c.
Specification forming part of Letters Patent No. 103,517, dated May 24, 1870.
To all whom it may concern Be it known that I, SoREN SoRENsoN, of Ebeltoft,-Denmark, have invented a new and useful Improvement in the Manufacture of Artificial Leather; and I do hereby declare that the following is a full, clear, and exact description thereof, which will enable others skilled in the art to make and use the same.
The object of this invention is to so treat the scraps and pieces of leather which are generally thrown away as useless by shoemakers and others that a fabric resembling leather in strength, flexibility, and appearance will from such pieces be produced.
The pieces of leather are first ground or reduced to a fine powder, or rather fibrous pulp, for which purpose they are passed through a suitable mill. This fibrous mass is mixed with caoutchouc when the same is in a crude state or dissolved in spirits of turpentine. The mass is well stirred or kneaded until caoutchouc has about the consistency of glue. Then spirits of ammoniac are added and the mixture still more agitated until it forms a thick homogeneous dough. The ammoniac and caoutchouc are used in about equal proportions.
The proportion of leather to the other ingredients can vary in accordance with the uses to which the fabric is to be put, being preferably between fifty to ninety per cent.
The mass, after having arrived at the lastmeutioned state, is compressed in forms or between rollers. The stronger the pressure the more durable will be the fabric. The fabric can be produced in varying thicknesses, as thin as paper or an inch thick.
Although I prefer the use of the spirits of turpentine for dissolving the caoutchouc, I do not confine myself to its use, as I have found that sulphuric ether, warm or cold tar, coal- .oil, and other fluids may be advantageously employed for the same purpose.
I have also found that a good fabric is produced from the leather scraps by treating them with gutta-percha, with tar and sulphur, or with the spirits of ammoniac alone.
The fabric produced by this process is fully equal in strength, toughness, and all other wearing qualities to natural leather, and can be used with safety wherever natural leather is applicable.
Having thus described my invention, I claim as new and desire to secure by Letters Patent As an article of manufacture, a fabric composed-of ground leather, caoutchouc, and ammoniac, mixed together in the proportions specified and manipulated in the manner set forth.
The above specification of my invention signed by me.
' S. SORENSON.
Vitnesses:
P. O. BERTHELSON, EDUARD BEFFS.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US103517A true US103517A (en) | 1870-05-24 |
Family
ID=2173002
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US103517D Expired - Lifetime US103517A (en) | Improvement in the preparation of artificial leather from scrap leather |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US103517A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2416888A (en) * | 1942-11-02 | 1947-03-04 | Wentworth Pearl Joseph | Method of manufacturing shoe soles and the like |
-
0
- US US103517D patent/US103517A/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2416888A (en) * | 1942-11-02 | 1947-03-04 | Wentworth Pearl Joseph | Method of manufacturing shoe soles and the like |
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