GB542895A - Improvements in and relating to the manufacture of purified latex and rubber - Google Patents
Improvements in and relating to the manufacture of purified latex and rubberInfo
- Publication number
- GB542895A GB542895A GB292941A GB292941A GB542895A GB 542895 A GB542895 A GB 542895A GB 292941 A GB292941 A GB 292941A GB 292941 A GB292941 A GB 292941A GB 542895 A GB542895 A GB 542895A
- Authority
- GB
- United Kingdom
- Prior art keywords
- rubber
- per cent
- latex
- diluted
- caustic
- 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
- C08C—TREATMENT OR CHEMICAL MODIFICATION OF RUBBERS
- C08C1/00—Treatment of rubber latex
- C08C1/02—Chemical or physical treatment of rubber latex before or during concentration
- C08C1/04—Purifying; Deproteinising
Landscapes
- Chemical & Material Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Saccharide Compounds (AREA)
Abstract
542,895. Purifying rubber latex. BRITISH RUBBER PRODUCERS' RESEARCH ASSOCIATION (Rubber Research Station, Netherlands East Indies Government Plantations). March 4, 1941, No. 2929. [Class 70] Latices of rubber, balata, gutta percha, abiurana, jelutong, gondang &c. are purified by concentrating, e.g. using a separator, or using a creaming agent such as Konnyaku flour, and then treating as in Specification 521,436, i.e. with caustic alkali, e.g. 10 gms. of caustic, soda per litre of latex, at boiling temperature followed by dialysis, e.g. against pure water. In an example 30 to 35 per cent. latex is concentrated to 50 to 60 per cent. and re-diluted with weak caustic soda solution heated to boiling temperature with the aid of " live " steam, diluted to 20 per cent. dialized, diluted to 5 per cent., coagulated and worked into crepe or sheet. The product is stated to be of lower ash and protein content, and lower water-absorbency than that of the process of Specification 521,436.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB292941A GB542895A (en) | 1941-03-04 | 1941-03-04 | Improvements in and relating to the manufacture of purified latex and rubber |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB292941A GB542895A (en) | 1941-03-04 | 1941-03-04 | Improvements in and relating to the manufacture of purified latex and rubber |
Publications (1)
Publication Number | Publication Date |
---|---|
GB542895A true GB542895A (en) | 1942-01-30 |
Family
ID=9748712
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB292941A Expired GB542895A (en) | 1941-03-04 | 1941-03-04 | Improvements in and relating to the manufacture of purified latex and rubber |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB542895A (en) |
-
1941
- 1941-03-04 GB GB292941A patent/GB542895A/en not_active Expired
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