http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-923847-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_838cee78914619aafc3c752655e1fcc4 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C69-704 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C69-82 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C69-80 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C67-14 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C69-52 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C69-704 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C69-80 |
| filingDate | 1961-10-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1963-04-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-923847-A |
| titleOfInvention | Citric acid esters and method for their preparation |
| abstract | Citric acid esters of formula <FORM:0923847/IV(a)/1> in which R1 to R6 are alkyl groups with 1 to 18 carbon atoms and Y is the residue of an aliphatic saturated or unsaturated, or aromatic dicarboxylic acid, are used as plasticisers and prevent blocking in emulsion and/or suspension polymers, e.g. polyvinyl chloride, vinyl chloridevinyl acetate copolymer, polyvinylidene chloride, vinyl chloridevinylidene chloride copolymer, polyvinyl acetate, and butadiene-acrylonitrile, polyamides of, e.g. caprolactam or hexamethylene diamine and adipic acid, varnishes based on polymethane, chlororubber and chlororubber varnishes, rubber hydrochloride and rubber hydrochloride foils, regenerated cellulose products, and foils formed from polyvinyl chloride emulsion, used for the packing of foods, or edible oils and fats.ALSO:The invention comprises citric acid esters of formula <FORM:0923847/IV(a)/1> in which R1 to R6 are alkyl groups with 1 to 18 carbon atoms and Y is the residue of an aliphatic saturated or unsaturated, or aromatic dicarboxylic acid, which are prepared by reacting the t-hydroxyl group of citric acid acid esterified to the triester with alcohols having 1 to 18 carbon atoms, with dicarboxylic acid halides. Oxalic, malonic, succinic, glutaric, adipic, pimelic, suberic, azelaic and sebacic acids, fumaric, citraconic and itaconic acids, phthalic, isophthalic, and terephthalic acids are examples of the above dicarboxylic acids. Examples describe the preparation of bis-citric acid trimethyl, triethyl, tripropyl, tributyl, triisooctyl, trinonyl, tricyclohexyl esters with the above acids, by the reaction of di-carboxylic acid halide with citric acid triesters, esterified with alcohols of 1-18 groups, using the tert. alcohol group. The esters may be used as plasticisers in plastisols or organosols or nitro-cellulose varnishes, as dyeing auxiliaries in the textile industry or as anti-blocking agents in varnishes or vinyl polymers.ALSO:Citric acid esters of formula <FORM:0923847/IV(a)/1> in which R1 to R6 are alkyl groups with 1 to 18 carbon atoms and Y is the residue of an aliphatic saturated or unsaturated or aromatic dicarboxylic acid, are used as softeners p in the finishing of regenerated cellulose which has been impregnated with resins such as methylol urea, dimethylol urea, and methylolamine condensates with formaldehyde, and formaldehyde condensation products with 2,6 diamino-4-methyl1,3,5 triazine or pentamethylol and triamino-triazine or 2,4,6-triamino-1,3,5-triazine. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4892967-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4883905-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4824893-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5055609-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4789700-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4954649-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4710532-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4711922-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4870204-A |
| priorityDate | 1960-12-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 63.