GB636626A - Improvements in or relating to the treatment of fresh rubber latex - Google Patents
Improvements in or relating to the treatment of fresh rubber latexInfo
- Publication number
- GB636626A GB636626A GB22699/47A GB2269947A GB636626A GB 636626 A GB636626 A GB 636626A GB 22699/47 A GB22699/47 A GB 22699/47A GB 2269947 A GB2269947 A GB 2269947A GB 636626 A GB636626 A GB 636626A
- Authority
- GB
- United Kingdom
- Prior art keywords
- latex
- ammonia
- rubber latex
- relating
- 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
- 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)
- Processes Of Treating Macromolecular Substances (AREA)
Abstract
From fresh natural rubber latex is obtained "white latex" by adding an alkaline preserving agent, e.g. ammonia, ethylene diamine, or caustic alkali, in amount insufficient to stabilize the latex against coagulation, e.g. adding liquid ammonia to, or allowing gaseous ammonia to diffuse downwardly into, the latex to yield a concentration of 0.8-1.4 g. NH3/litre, allowing the latex to stand for one or two days without heating or agitation, and separating off the yellow coagulum which forms. The Specification as open to inspection under Sect. 91 comprises the employment of any preserving agent. This subject-matter does not appear in the Specification as accepted.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL636626X | 1946-09-12 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB636626A true GB636626A (en) | 1950-05-03 |
Family
ID=19788888
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB22699/47A Expired GB636626A (en) | 1946-09-12 | 1947-08-15 | Improvements in or relating to the treatment of fresh rubber latex |
Country Status (3)
Country | Link |
---|---|
FR (1) | FR953110A (en) |
GB (1) | GB636626A (en) |
NL (1) | NL65642C (en) |
-
0
- NL NL65642D patent/NL65642C/xx active
-
1947
- 1947-08-15 GB GB22699/47A patent/GB636626A/en not_active Expired
- 1947-09-12 FR FR953110D patent/FR953110A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
FR953110A (en) | 1949-11-30 |
NL65642C (en) |
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