http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H05271212-A
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D21H17-17 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C45-89 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C49-88 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D305-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D21H17-17 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C45-89 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C49-88 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D21H17-05 |
| filingDate | 1993-01-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1993-10-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-H05271212-A |
| titleOfInvention | Method for producing long-chain ketene dimer |
| abstract | (57) [Summary] (Modified) [Objective] The production of a long-chain ketene dimer, which comprises reacting a carboxylic acid chloride with a tertiary amine and post-treating a mixture containing ketene dimer and amine hydrochloride. Perform without using an organic solvent. [Structure] Carboxylic acid chloride was mixed under vigorous mixing in the absence of an organic solvent with 3 mol per mol of triethylamine present. It was fed into a vessel of triethylamine at a rate of less than or equal to mol / hour, the viscosity of the mixture was always less than 250 mPa · s, measured at 60 ° C. (shear rate higher than 100 sec −1 ) and the carboxylic acid fed The mixing, feeding and heat exchange were adjusted to each other such that the molar ratio of the total amount of chloride to the amine present was 1: 1.025 to 1: 2, and after the conversion reaction, the reaction mixture was diluted with dilute aqueous hydrochloric acid or triethylamine hydrochloride and hydrochloric acid. The ketene dimer is separated by treating with an aqueous solution of. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2016505540-A |
| priorityDate | 1991-12-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 20.