GB616174A - Process for the manufacture of plasticised rubber from latex - Google Patents
Process for the manufacture of plasticised rubber from latexInfo
- Publication number
- GB616174A GB616174A GB13837/46A GB1383746A GB616174A GB 616174 A GB616174 A GB 616174A GB 13837/46 A GB13837/46 A GB 13837/46A GB 1383746 A GB1383746 A GB 1383746A GB 616174 A GB616174 A GB 616174A
- Authority
- GB
- United Kingdom
- Prior art keywords
- latex
- rubber
- treated
- coagulation
- manufacture
- 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
- C08C19/00—Chemical modification of rubber
- C08C19/08—Depolymerisation
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)
- Manufacture Of Macromolecular Shaped Articles (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Abstract
Rubber of a predetermined plasticity is obtained by treating natural rubber latex with aqueous hydrogen peroxide of 20-250 volume strength at a temperature below 60 DEG C. and separating the rubber by coagulation from the treated latex. The latex which may be stabilized with casein is preferably treated by several additions of peroxide at a temperature of 30 DEG C. and is subsequently cooled to 10-15 DEG C. to produce after coagulation a rubber having a fluidity of 1800 DEG Barbey when measured at 56 DEG C. Other plasticites may be obtained by mixing this treated latex with definite quantities of natural latex and then coagulating the mixture. The treatment is preferably effected in enamelled sheet metal vats. Specification 603,095 is referred to.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR818572X | 1945-05-22 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB616174A true GB616174A (en) | 1949-01-18 |
Family
ID=9268966
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB13837/46A Expired GB616174A (en) | 1945-05-22 | 1946-05-07 | Process for the manufacture of plasticised rubber from latex |
Country Status (5)
Country | Link |
---|---|
BE (1) | BE473226A (en) |
DE (1) | DE818572C (en) |
ES (1) | ES173665A1 (en) |
FR (1) | FR996691A (en) |
GB (1) | GB616174A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0238795A1 (en) * | 1986-03-01 | 1987-09-30 | Hüls Aktiengesellschaft | Process for reducing the molecular weight of natural rubber in latex form |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1193239B (en) * | 1962-06-30 | 1965-05-20 | Continental Gummi Werke Ag | Process for masticating solid natural or synthetic rubbers |
-
0
- BE BE473226D patent/BE473226A/xx unknown
-
1945
- 1945-05-22 FR FR996691D patent/FR996691A/en not_active Expired
-
1946
- 1946-05-07 GB GB13837/46A patent/GB616174A/en not_active Expired
- 1946-05-21 ES ES173665A patent/ES173665A1/en not_active Expired
-
1949
- 1949-01-01 DE DEP29504A patent/DE818572C/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0238795A1 (en) * | 1986-03-01 | 1987-09-30 | Hüls Aktiengesellschaft | Process for reducing the molecular weight of natural rubber in latex form |
Also Published As
Publication number | Publication date |
---|---|
FR996691A (en) | 1951-12-24 |
BE473226A (en) | |
ES173665A1 (en) | 1946-07-01 |
DE818572C (en) | 1951-10-25 |
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