GB646741A - Improvements in accelerators - Google Patents
Improvements in acceleratorsInfo
- Publication number
- GB646741A GB646741A GB8657/48A GB865748A GB646741A GB 646741 A GB646741 A GB 646741A GB 8657/48 A GB8657/48 A GB 8657/48A GB 865748 A GB865748 A GB 865748A GB 646741 A GB646741 A GB 646741A
- Authority
- GB
- United Kingdom
- Prior art keywords
- beta
- thiocarbamo
- cyanoethyl
- sulphonamide
- butyl
- 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
- C08K5/0008—Organic ingredients according to more than one of the "one dot" groups of C08K5/01 - C08K5/59
- C08K5/0025—Crosslinking or vulcanising agents; including accelerators
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
N-beta-cyanoethyl thiocarbamo sulphonamides having the general formula <FORM:0646741/IV (a)/1> where R is a group from acyclic, alicyclic, aryl, and aralkyl hydrocarbons and beta-cyanoethylene and R1 and R11 are groups from hydrogen, acyclic, alicyclic, and aralkyl hydrocarbons, are used in synthetic rubbers as accelerators. Typical sulphonamides are N-beta - cyanoethyl N - ethyl thiocarbamo sulphonamide, N - beta - cyanoethyl N, N1 - di-n - butyl thiocarbamo sulphonamide, N - n-butyl N - beta - cyanoethyl N1 - cyclohexyl thiocarbamo sulphonamide, di - beta - cyanoethyl thiocarbamo sulphonamide, N-n-butyl N-beta cyanoethyl thiocarbamo sulphonamide, N - ethyl N - beta - cyanoethyl N - cyclohexyl thiocarbamo sulphonamide, N-n-butyl N-betacyanoethyl N1,N1-diethyl thiocarbamo sulphonamide, N-beta-cyanoethyl N-ethyl N1-n-butyl thiocarbamo sulphonamide, and N-beta-cyanoethyl N,N1,N1-triethyl thiocarbamo sulphonamide. In examples, five of the above specified sulphonamides are separately mixed with butadiene-styrene or butadiene-acrylonitrile copolymer, sulphur, coal tar softener, carbon black and zinc oxide, and conventional accelerators such as diphenyl guanidine, mercaptobenzthiazole or dibenzthiazole sulphide may also be used.ALSO:N-beta-cyanoethyl thiocarbamo sulphenamides having the general formula <FORM:0646741/IV (b)/1> where R is a group from acyclic, alicyclic, aryl, and aralkyl hydrocarbons and beta-cyanoethylene, and R1 and R11 are groups from hydrogen, acylic, alicyclic and aralkyl hydrocarbons are used as rubber accelerators as described in Group V. In an example N-beta-cyanoethyl N-ethyl thiocarbamo sulphenamide is prepared by treating with an excess of monochloramine the dithiocarbamate obtained by reacting together N-beta-cyanoethyl ethylamine, sodium hydroxide and carbon disulphide. In further examples the following sulphenamide are prepared by similar methods: N-beta-cyanoethyl N,N1-n-dibutyl thiocarbamo sulphenamide, N-n-butyl N-beta-cyanoethyl N1-cyclohexyl thiocarbamo sulphenamide, di-beta-cyanoethyl thiocarbamo sulphenamide, N-n-butyl N-beta cyanoethyl thiocarbamo sulphenamide, N-ethyl N-beta-cyanoethyl N1-cyclohexyl thiocarbamo sulphenamide, N-n-butyl N-beta cyanoethyl N1,N1-diethyl thiocarbamo sulphenamide, N-beta-cyanoethyl N-ethyl N1-n-butyl thiocarbamo sulphenamide and N-beta-cyanoethyl N,N1,N1-triethyl thiocarbamo sulphenamide.ALSO:N - beta - cyanoethyl thiocarbamo sulphoamides having the general formula <FORM:0646741/V/1> where R is a group from acyclic, alicyclic, aryl, and aralkyl hydrocarbons and beta-cyanoethylene; and R1 and R11 are groups from hydrogen, acyclic, alicyclic, and aralkyl hydrocarbons are used in natural and synthetic rubbers as accelerators. The preparation of the following sulphonamides according to the method described in Group IV (b) is given: N - beta - cyanoethyl N - ethyl thiocarbamo sulphonamide, N - beta - cyanoethyl N, N1-di - n - butyl thiocarbamo sulphonamide, N - n - butyl N - beta - cyanoethyl N1 - cyclohexyl thiocarbamo sulphonamide, di - betacyanoethyl thiocarbamo sulphonamide, N - n-butyl N-beta cyanoethyl thiocarbamo sulphonamide, N - ethyl N - beta - cyanoethyl N-cyclohexyl thiocarbamo sulphonamide, N -n-butyl N - beta - cyanoethyl N1,N1 - diethyl thiocarbamo sulphonamide, N - beta - cyanoethyl N - ethyl N1 - n - butyl thiocarbamo-sulphonamide, and N-beta-cyanoethyl N,N1,N1-triethyl thiocarbamo sulphonamide. In addition many other such sulphonamides are specified. In examples 5 of the above specified sulphonamides are separately mixed with butadiene-styrene copolymer, sulphur, coal tar softener, carbon black and zinc oxide. Butadiene-acrylonitrile copolymer may replace the above copolymer and conventional accelerators such as diphenyl guanidine, mercaptobenzthiazole or dibenzthiazole sulphide may also be used.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US646741XA | 1947-05-28 | 1947-05-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB646741A true GB646741A (en) | 1950-11-29 |
Family
ID=22057537
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB8657/48A Expired GB646741A (en) | 1947-05-28 | 1948-03-24 | Improvements in accelerators |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB646741A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1213986B (en) * | 1959-04-01 | 1966-04-07 | Ici Ltd | Process for vulcanizing natural or synthetic rubber |
-
1948
- 1948-03-24 GB GB8657/48A patent/GB646741A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1213986B (en) * | 1959-04-01 | 1966-04-07 | Ici Ltd | Process for vulcanizing natural or synthetic rubber |
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