http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-521776-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_d66aced64b418a4f422589fa7eee73a2 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10M2209-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10M2207-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10M2207-142 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10M2207-14 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10M1-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10G73-04 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C10G73-04 |
| filingDate | 1938-11-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1940-05-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-521776-A |
| titleOfInvention | An improved manufacture of addition agents for lubricating oils |
| abstract | 521,776. Lubricating oil compositions. STANDARD OIL DEVELOPMENT CO. Nov. 28, 1938, No. 34581 Convention date, Feb. 12. Addition to 509,550. [Class 91] [Also in Group IV] Addition agents for lubricating oils which act as pour point depressing agents are prepared by a modification of the process of the parent Specification which consists in subjecting the condensation product of halogenated aliphatic hydrocarbons or olefins with aromatic hydrocarbons to a further condensation with a dicarboxylic acid halide. This secondary condensation which is the feature of the present invention is effected with aluminium chloride or an equivalent catalyst of the Friedel Crafts type. The reaction may be carried out without a solvent or in the presence of solvents such as chlor-ethanes, naphtha, or carbon disulphide. After the reaction has been completed the catalyst is hydrolysed with water, or aqueous alcoholic alkali. It is preferred to carry out the two condensations separately, but if desired the condensation for preparing the starting material and the condensation which is characteristic of the present invention may be carried out simultaneously. The Specification contains information as to the manner in which the reactants and the amount used thereof may be selected with a view to obtaining any particular required characteristics in the final product. In examples (1) The starting material is prepared by condensing chlorinated paraffin wax with naphthalene in kerosene solution in the presence of aluminium chloride at 88‹C. for 6 hours. The catalyst is hydrolysed with alkali and the solvent distilled off. This initial material is then further condensed in tetrachlorethane solution with an acid chloride in the presence of aluminium chloride. Acid chlorides specified include oxalyl, succinyl, adipyl, sebacyl, and phthalyl chlorides. Tests are given to show the effect of these various reaction products on the viscosity index of oils. (2) The initial condensation product prepared as above is reacted in a range of proportions with sebacyl chloride. (3) The initial condensation product is condensed with adipyl chloride as in example (1) and the product combined with an oil and the properties determined. (4) The acid chlorides used in example (1) are combined with the initial condensation product in varying proportions and the effect of the resulting compounds on oils is determined. |
| priorityDate | 1937-12-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 36.