GB727540A - Production of moulded age resisting compositions from natural or synthetic rubber - Google Patents
Production of moulded age resisting compositions from natural or synthetic rubberInfo
- Publication number
- GB727540A GB727540A GB14642/53A GB1464253A GB727540A GB 727540 A GB727540 A GB 727540A GB 14642/53 A GB14642/53 A GB 14642/53A GB 1464253 A GB1464253 A GB 1464253A GB 727540 A GB727540 A GB 727540A
- Authority
- GB
- United Kingdom
- Prior art keywords
- gamma
- aminopropylamine
- amine
- sulphur
- added
- 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
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/16—Nitrogen-containing compounds
- C08K5/17—Amines; Quaternary ammonium compounds
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The age-resistance of vulcanizates of natural and synthetic rubber is increased by compounding with the unvulcanized mix an aliphatic amine which is able to react with, or dissolve completely at least 25 per cent. and preferably 40 per cent. of its weight of sulphur at a temperature between 120 and 140 DEG C. The amine may be used in a proportion of 1 to 2 parts by weight to 100 parts of rubber. The amine is preferably a substituted propylene diamine such as di - gamma - aminopropylamine, gamma - dimethyl - aminopropylamine, gamma - diethylaminopropylamine, gamma - piperidinepropylamine, di - gamma - methylaminopropylamine, dimethylaminopropyl - gamma - aminopropylamine, and also bis - trimethylenediamine and N - methyl - bis - trimethylene-diamine. The amine may be added in conjunction with a pyrogenically produced metal or metalloid oxide, or aluminium oxide or silicon dioxide produced by wet precipitation. If sufficient sulphur is added then the quantity of accelerator may be reduced or omitted altogether. In examples, a mix is made from smoked sheets, carbon black or silica, stearic acid, pine tar, phenylbetanaphthylamine, zinc oxide, accelerator and sulphur, and from 1.5 to 2.5 per cent. based on the rubber of either gamma-piperidine propylamine or di-gamma-aminopropylamine is added.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE727540X | 1952-05-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB727540A true GB727540A (en) | 1955-04-06 |
Family
ID=6635491
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB14642/53A Expired GB727540A (en) | 1952-05-29 | 1953-05-26 | Production of moulded age resisting compositions from natural or synthetic rubber |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE520264A (en) |
| GB (1) | GB727540A (en) |
| NL (1) | NL85335C (en) |
-
0
- BE BE520264D patent/BE520264A/xx unknown
- NL NL85335D patent/NL85335C/xx active
-
1953
- 1953-05-26 GB GB14642/53A patent/GB727540A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| NL85335C (en) | |
| BE520264A (en) |
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