GB226071A - Process for making artificial horn and artificial ivory (stone nut substitute) from viscose - Google Patents
Process for making artificial horn and artificial ivory (stone nut substitute) from viscoseInfo
- Publication number
- GB226071A GB226071A GB562924A GB562924A GB226071A GB 226071 A GB226071 A GB 226071A GB 562924 A GB562924 A GB 562924A GB 562924 A GB562924 A GB 562924A GB 226071 A GB226071 A GB 226071A
- Authority
- GB
- United Kingdom
- Prior art keywords
- viscose
- artificial
- ivory
- hydroxide
- treatment
- 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
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L1/00—Compositions of cellulose, modified cellulose or cellulose derivatives
- C08L1/08—Cellulose derivatives
- C08L1/22—Cellulose xanthate
- C08L1/24—Viscose
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
Viscose, which is to be converted into artificial horn or ivory by coagulation in moulds is treated to facilitate the washing out of alkalies and alkaline sulphides. The treatment consists in adding to the uncoagulated viscose a compound of an alkaline earth or heavy metal which reacts with the alkali, &c., to produce a soluble salt. Suitable reagents are aluminium, hydroxide, zinc oxide and calcium acetate. The soluble salt which is formed is either washed out or is treated with a second compound which precipitates the first metal and forms a second salt which can be washed out, e.g. treatment with aluminium hydroxide may be followed by washing with calcium chloride solution. The main process may be preceded by treatment with an oxide or hydroxide, e.g. iron oxide, which reacts with the sulphides to form an insoluble precipitate. The reactions may be regulated by the use of reduced temperature or pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB562924A GB226071A (en) | 1924-03-05 | 1924-03-05 | Process for making artificial horn and artificial ivory (stone nut substitute) from viscose |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB562924A GB226071A (en) | 1924-03-05 | 1924-03-05 | Process for making artificial horn and artificial ivory (stone nut substitute) from viscose |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB226071A true GB226071A (en) | 1924-12-18 |
Family
ID=9799662
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB562924A Expired GB226071A (en) | 1924-03-05 | 1924-03-05 | Process for making artificial horn and artificial ivory (stone nut substitute) from viscose |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB226071A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2801933A (en) * | 1954-06-21 | 1957-08-06 | Du Pont | Stabilized soils |
-
1924
- 1924-03-05 GB GB562924A patent/GB226071A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2801933A (en) * | 1954-06-21 | 1957-08-06 | Du Pont | Stabilized soils |
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