http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-469865-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_c28d07957c2af4e879fced3eb3b0153b http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_70d7b003d158bf22e07ce436e75f04f7 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08K5-29 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L7-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08K5-29 |
| filingDate | 1936-10-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1937-08-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-469865-A |
| titleOfInvention | Improvements in or relating to vulcanisation accelerators and process for their production |
| abstract | The vulcanization of rubber is accelerated by the addition to the mix of aliphatic aldehydealiphatic amine condensation products which are made by a process which comprises the condensation of one molecule of amine with two molecules of aldehyde and is characterized by the fact that the reaction is conducted with simultaneous cooling of the reactants, and that the reaction product is separated into its constituent components by fractionation. The condensation which is preferably carried out with vigorous agitation of the reactants, may be conducted at either sub-or super-atmospheric pressure. The most valuable and active fraction is that which has a b.p. of 120 DEG C. and over. This fraction may be used as such or in the form of salts with weak acids such as stearic acid, palmitic acid, oleic acid and ricinoleic acid, made by the addition of the stoichiometric amount of acid. In examples: (1) 2 molecules of monobutylamine are condensed with 4 molecules of butyraldehyde at 0 DEG C. and the product fractionated. The most valuable product distills at 120--180 DEG C.; (2) 2,5 molecules of monobutylamine are condensed with 5 molecules of propanol at - 20 DEG C. The accelerator fraction distills above 120 DEG C. Examples are also given to show the efficiency as accelerators of the two products obtained in examples (1) and (2) above. Specifications 180,978, 265,930, and 265,931, [all in Class 70], are referred to.ALSO:The vulcanization of rubber is accelerated by the addition to the mix of aliphatic aldehydealiphatic amine condensation products which are made by a process which comprises the condensation of one molecule of amine with two molecules of aldehyde and is characterized by the fact that the reaction is conducted with simultaneous cooling of the reactants, and that the reaction product is separated into its constituent components by fractionation. The condensation, which is preferably carried out with vigorous agitation of the reactants may be conducted at either sub- or super-atmospheric pressure. The most valuable and active fraction is that which has a b.p. of 120 DEG C. or over. This fraction may be used as such or in the form of salts with weak acids such as stearic acid, palmitic acid, oleic acid and ricinoleic acid, made by the addition of the stoichiometric amount of acid. In examples; (1) 2 molecules of monobutylamine are condensed with 4 molecules of butyraldehyde at 0 DEG C. and the product fractionated. The most valuable product distills at 120-160 DEG C.; (2) 2.5 molecules of monobutylamine are condensed with 4 molecules of propanal at -20 DEG C. The accelerator fractions distills above 120 DEG C. Examples are also given to show the efficiency as accelerators of the two products obtained in examples (1) and (2) above. Specifications 180,978, 265,930, and 265,931, [all in Class 70], are referred to. |
| priorityDate | 1935-10-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 30.