US976977A - Process for obtaining silk fibroin. - Google Patents
Process for obtaining silk fibroin. Download PDFInfo
- Publication number
- US976977A US976977A US46464608A US1908464646A US976977A US 976977 A US976977 A US 976977A US 46464608 A US46464608 A US 46464608A US 1908464646 A US1908464646 A US 1908464646A US 976977 A US976977 A US 976977A
- Authority
- US
- United States
- Prior art keywords
- silk
- fibroin
- silk fibroin
- obtaining
- obtaining silk
- 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
- 108010022355 Fibroins Proteins 0.000 title description 12
- 238000000034 method Methods 0.000 title description 7
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 description 12
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 description 6
- 235000019253 formic acid Nutrition 0.000 description 6
- 210000004907 gland Anatomy 0.000 description 3
- 241000255789 Bombyx mori Species 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000009991 scouring Methods 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 238000009987 spinning Methods 0.000 description 2
- 229920001353 Dextrin Polymers 0.000 description 1
- 239000004375 Dextrin Substances 0.000 description 1
- 229920001800 Shellac Polymers 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000005018 casein Substances 0.000 description 1
- BECPQYXYKAMYBN-UHFFFAOYSA-N casein, tech. Chemical compound NCCCCC(C(O)=O)N=C(O)C(CC(O)=O)N=C(O)C(CCC(O)=N)N=C(O)C(CC(C)C)N=C(O)C(CCC(O)=O)N=C(O)C(CC(O)=O)N=C(O)C(CCC(O)=O)N=C(O)C(C(C)O)N=C(O)C(CCC(O)=N)N=C(O)C(CCC(O)=N)N=C(O)C(CCC(O)=N)N=C(O)C(CCC(O)=O)N=C(O)C(CCC(O)=O)N=C(O)C(COP(O)(O)=O)N=C(O)C(CCC(O)=N)N=C(O)C(N)CC1=CC=CC=C1 BECPQYXYKAMYBN-UHFFFAOYSA-N 0.000 description 1
- 235000021240 caseins Nutrition 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 235000019425 dextrin Nutrition 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000004833 fish glue Substances 0.000 description 1
- -1 for instance Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- ZLGIYFNHBLSMPS-ATJNOEHPSA-N shellac Chemical compound OCCCCCC(O)C(O)CCCCCCCC(O)=O.C1C23[C@H](C(O)=O)CCC2[C@](C)(CO)[C@@H]1C(C(O)=O)=C[C@@H]3O ZLGIYFNHBLSMPS-ATJNOEHPSA-N 0.000 description 1
- 229940113147 shellac Drugs 0.000 description 1
- 235000013874 shellac Nutrition 0.000 description 1
- 239000004208 shellac Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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
Definitions
- CARL Rooonr BAU- MANN silk manufacturer, a subject of the Swiss Confederation, residing at Gavirate, in the Kingdom of Italy, and Gorrmnn Go'rrrnnn) Dmssnn, scientific chemist, a subject of the German Emperor, residing at Zurich,
- the present invention is the result of elaborate experiments with a great variety of solvents, experiments by which it was proved beyond doubt that an excellent method for the production of silk-fibroin, at
- the swelling of the fibroin caused by its treatment with formic acid can be utilized for manufacturlng, out of s1lk and waste s1lk, insulatlng bodies, as bands, ribbons,
- finished silken fabrics can be rendered airand waterproof by being treated with formic acid.
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Peptides Or Proteins (AREA)
Description
UNITED STATES PATENT OFFICE.
CARL RUDOLF BAUMANN, OF GAVIRATE, ITALY, AND GOT'ILIEB GOTTFRIED DIESSER,
OF ZURICH, SWITZERLAND.
PROCESS FOR OBTAINING SILK FIBROIN.
eraaw. No Drawing.
To all whom it may concern:
Be it known that we, CARL Rooonr BAU- MANN, silk manufacturer, a subject of the Swiss Confederation, residing at Gavirate, in the Kingdom of Italy, and Gorrmnn Go'rrrnnn) Dmssnn, scientific chemist, a subject of the German Emperor, residing at Zurich,
Switzerland, have invented new and useful Improvements in Processes for Obtaining Silk Fibroin, of which improvements detailed account follows.
Besides the methods used by the silk-dyers for scouring the silk, several solvents, acid or alkaline, were hitherto known for the production of silk-fibroin. Some, or even all, of these agents however, effect a more or less fargoing decomposition of the fibroin and thus produce results which have, as it would seem, prevented, to this day, solutions of silk-fibroin from being practically made use of for technical purposes.
The present invention is the result of elaborate experiments with a great variety of solvents, experiments by which it was proved beyond doubt that an excellent method for the production of silk-fibroin, at
ordinary temperatures, consisted in using in the presence of heat.
When the glands are dissolved in formic acid, the serecin remains an undissolved tube. The formic acid solution having been evaporated, a very lustrous thin skin of a somewhat lesser elasticity than that of the Specification of Letters Patent.
Application filed November 27, 1908.
Patented Nov. 29, 1910.
Serial No. 464,646.
fibroin of raw silk as obtained from the scouring trough, but having all the other qualities of the last named fibroin, has resulted. In order then to impart the degree of elasticity still wanting, a preliminary addition is made to the formic solution, of an appropriate substance, for instance, glue,
fish-glue, starch, casein, dextrin, shellac,-
.the swelling of the fibroin caused by its treatment with formic acid. can be utilized for manufacturlng, out of s1lk and waste s1lk, insulatlng bodies, as bands, ribbons,
sticks, plates etc., in order to utilize the reat insulating power of silk. Again, finished silken fabrics can be rendered airand waterproof by being treated with formic acid.
Claims: 1. The-process of obtaining silk-fibroin, which consists in dissolving the spinning glands of silkworms with formic acid, as set forth.
2. The process of obtaining silk fibroin which consists in dissolving the spinning glands of silk Worms with formic acid by the aid of heat.
. CARL RUDOLF BAUMANN.
GOTTLIEB GOTTFRIED DIESSER.
Witnesses LEVAILVLANT, J os. SIMON.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US46464608A US976977A (en) | 1908-11-27 | 1908-11-27 | Process for obtaining silk fibroin. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US46464608A US976977A (en) | 1908-11-27 | 1908-11-27 | Process for obtaining silk fibroin. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US976977A true US976977A (en) | 1910-11-29 |
Family
ID=3045355
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US46464608A Expired - Lifetime US976977A (en) | 1908-11-27 | 1908-11-27 | Process for obtaining silk fibroin. |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US976977A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002029141A1 (en) * | 2000-10-02 | 2002-04-11 | Consorzio Per Gli Studi Universitari | Method for the preparation of a non-woven silk fibroin fabrics |
-
1908
- 1908-11-27 US US46464608A patent/US976977A/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002029141A1 (en) * | 2000-10-02 | 2002-04-11 | Consorzio Per Gli Studi Universitari | Method for the preparation of a non-woven silk fibroin fabrics |
| US20040097709A1 (en) * | 2000-10-02 | 2004-05-20 | Ubaldo Armato | Method for the preparation of a non-woven silk fibroin fabrics |
| US7285637B2 (en) | 2000-10-02 | 2007-10-23 | Consorzio Per Gli Studi Universitari | Method for the preparation of a non-woven silk fibroin fabrics |
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