http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4362890-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_d5073c72837c69a4850d017e75290dd1 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C213-08 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08K5-19 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C213-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-52 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C213-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C219-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C219-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-00 |
| filingDate | 1980-12-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1982-12-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d9be0e0049b47ca92eacd6fcc9c17c0e http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f4574beef4f8401a110b77bc5477118f |
| publicationDate | 1982-12-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-4362890-A |
| titleOfInvention | Process for the preparation of unsaturated quaternary ammonium salts |
| abstract | A process for preparing an unsaturated quaternary ammonium salt represented by the general formula (I): n n (CH.sub.2 =CR.sub.1 --COOCH.sub.2 CH.sub.2 NR.sub.2 R.sub.3 R.sub.4).sup.+ n n X - n wherein R 1 is --H or --CH 3 , R 2 and R 3 are --CH 3 or --C 2 H 5 , R 4 is --CH 3 or --C 2 H 5 , and X is Cl, Br or I, by reacting an unsaturated tertiary amine represented by the general formula (II): n n CH.sub.2 =CR.sub.1 --COOCH.sub.2 CH.sub.2 NR.sub.2 R.sub.3 n n wherein R 1 , R 2 and R 3 are as defined above, with a halogenated hydrocarbon in an aqueous medium, characterized in that: n (i) the reaction is carried out at a concentration of the unsaturated tertiary amine in the aqueous medium of 78 to 91% by weight to produce the unsaturated quaternary ammonium salt in the aqueous medium of 82-93% by weight, and the reaction temperature is so controlled that no precipitation of the crystals of the unsaturated quaternary ammonium salt occurs, and n (ii) the reaction product solution obtained is cooled by attaching it, either immediately or after mixing with the reaction product solution which has already been cooled to a temperature lower than that of said reaction product solution, in the form of a thin film onto a cooled glass-lined or chromium-plated solid surface to precipitate the unsaturated quaternary ammonium salt crystals to obtain the desired slurry. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-102924299-B http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-102924299-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4745214-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4520210-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6521782-B1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-19980059283-A |
| priorityDate | 1979-12-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
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