GB587031A - Reclaiming synthetic rubber or rubber scrap containing synthetic rubber - Google Patents
Reclaiming synthetic rubber or rubber scrap containing synthetic rubberInfo
- Publication number
- GB587031A GB587031A GB912242A GB912242A GB587031A GB 587031 A GB587031 A GB 587031A GB 912242 A GB912242 A GB 912242A GB 912242 A GB912242 A GB 912242A GB 587031 A GB587031 A GB 587031A
- Authority
- GB
- United Kingdom
- Prior art keywords
- rubber
- synthetic rubber
- natural
- acid
- neoprene
- 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
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J11/00—Recovery or working-up of waste materials
- C08J11/04—Recovery or working-up of waste materials of polymers
- C08J11/10—Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation
- C08J11/18—Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation by treatment with organic material
- C08J11/22—Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation by treatment with organic material by treatment with organic oxygen-containing compounds
- C08J11/26—Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation by treatment with organic material by treatment with organic oxygen-containing compounds containing carboxylic acid groups, their anhydrides or esters
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/62—Plastics recycling; Rubber recycling
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
Abstract
Synthetic rubber, such as neoprene, that known under the Registered Trade Mark "Thiokol" and the diolefine types and their copolymers, or a rubber scrap containing natural and synthetic rubber is reclaimed by subjecting is to moist heat and preferably pressure in the presence of a monobasic aliphatic saturated acid of which the chain contains not less than four carbon atoms but does not contain hydroxyl groups, such as lauric and stearic acid. The acid may be dissolved in a solvent capable of swelling the rubber and the solvent may be evaporated after mixing with the rubber. In examples (1) a mixture of natural and synthetic rubber scrap is ground, mixed with a solution of lauric acid in naphtha and treated in a potheater for 5 hours at 190 lbs. live steam pressure, (2) ground neoprene G.N. tyre scrap is mixed with a solution of stearic acid in trichlorethylene and heated with water in an autoclan for 5 hours at 200 lbs. pressure. Neoprene, after treatment, is compatible with natural or other synthetic rubber, or natural, and is vulcanizable with sulphur. Reference has been directed by the Comptroller to Specifications 558,334 and 566,058.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB912242A GB587031A (en) | 1942-07-01 | 1942-07-01 | Reclaiming synthetic rubber or rubber scrap containing synthetic rubber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB912242A GB587031A (en) | 1942-07-01 | 1942-07-01 | Reclaiming synthetic rubber or rubber scrap containing synthetic rubber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB587031A true GB587031A (en) | 1947-04-11 |
Family
ID=9865790
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB912242A Expired GB587031A (en) | 1942-07-01 | 1942-07-01 | Reclaiming synthetic rubber or rubber scrap containing synthetic rubber |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB587031A (en) |
-
1942
- 1942-07-01 GB GB912242A patent/GB587031A/en not_active Expired
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