GB816230A - Improvements in the vulcanisation of aqueous dispersions of rubber - Google Patents
Improvements in the vulcanisation of aqueous dispersions of rubberInfo
- Publication number
- GB816230A GB816230A GB1155756A GB1155756A GB816230A GB 816230 A GB816230 A GB 816230A GB 1155756 A GB1155756 A GB 1155756A GB 1155756 A GB1155756 A GB 1155756A GB 816230 A GB816230 A GB 816230A
- Authority
- GB
- United Kingdom
- Prior art keywords
- latex
- rubber
- radiation
- vulcanized
- nitrogen
- 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
- 229920001971 elastomer Polymers 0.000 title abstract 7
- 239000006185 dispersion Substances 0.000 title abstract 5
- 238000004073 vulcanization Methods 0.000 title 1
- 229920000126 Latex Polymers 0.000 abstract 12
- 239000004816 latex Substances 0.000 abstract 10
- IJGRMHOSHXDMSA-UHFFFAOYSA-N nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract 8
- 229910052782 aluminium Inorganic materials 0.000 abstract 4
- 239000004411 aluminium Substances 0.000 abstract 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminum Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract 4
- 239000011261 inert gas Substances 0.000 abstract 4
- 229910052757 nitrogen Inorganic materials 0.000 abstract 4
- 240000008528 Hevea brasiliensis Species 0.000 abstract 2
- 238000001035 drying Methods 0.000 abstract 2
- 230000001678 irradiating Effects 0.000 abstract 2
- 229920001194 natural rubber Polymers 0.000 abstract 2
- 239000001301 oxygen Substances 0.000 abstract 2
- 229910052760 oxygen Inorganic materials 0.000 abstract 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N oxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 abstract 2
- 230000000704 physical effect Effects 0.000 abstract 2
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/28—Treatment by wave energy or particle radiation
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2321/00—Characterised by the use of unspecified rubbers
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)
Abstract
Aqueous dispersions of rubber are vulcanized by exposure to a radiation dosage of between 1 and 60 megarads. The radiation may consist of fast electrons, gamma rays, or the mixed radiation from an atomic pile, and the aqueous dispersion may be natural rubber latex containing 60 to 70 per cent of rubber. In examples are described the physical properties of rubber films obtained by drying vulcanized latices prepared by placing samples of latex in a shallow aluminium trough covered with aluminium sheets and exposing them for various periods to a beam of high-energy electrons from an electron accelerator. According to the Provisional Specification oxygen is excluded from the latex during the irradiation treatment. Nitrogen or other inert gas is bubbled through the latex, and any residual bubbles removed by centrifugal action before irradiating the latex in an atmosphere of nitrogen or other inert gas.ALSO:Aqueous dispersions of rubber are vulcanized by exposure to a radiation dosage of between 1 and 60 megarads. The radiation may consist of fast electrons, gamma rays, or the mixed radiation from an atomic pile, and the aqueous dispersion may be natural rubber latex containing 60 to 70 per cent of rubber. In examples are described the physical properties of rubber films obtained by drying vulcanized latices prepared by placing samples of latex in a shallow aluminium trough covered with aluminium sheets and exposing them for various periods to a beam of high energy electrons from an electron accelerator. According to the Provisional Specification oxygen is excluded from the latex during the irradiation treatment. Nitrogen or other inert gas is bubbled through the latex, and any residual bubbles removed by centrifugal action before irradiating the latex in an atmosphere of nitrogen or other inert gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| MY6000010A MY6000010A (en) | 1956-04-16 | 1960-12-31 | Improvements in the vulcanisation of aqueous dispersions of rubber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB816230A true GB816230A (en) | 1959-07-08 |
Family
ID=1709984
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1155756A Expired GB816230A (en) | 1956-04-16 | 1956-04-16 | Improvements in the vulcanisation of aqueous dispersions of rubber |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB816230A (en) |
-
1956
- 1956-04-16 GB GB1155756A patent/GB816230A/en not_active Expired
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