http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-976568-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_c7ad58d3c0b071069a8ee0cb8c8ba2e8 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07F9-38 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07F9-564 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G73-0213 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G73-0206 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D203-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J43-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G14-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G73-00 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J43-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G73-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D203-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G73-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G73-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G14-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07F9-38 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07F9-564 |
| filingDate | 1961-02-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1964-11-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-976568-A |
| titleOfInvention | A process for the production of amphoteric ion exchange resins |
| abstract | Amphoteric ion-exchange resins are produced by reacting polyethylene-imine under mildly alkaline conditions with a halogenoaliphatic carboxylic acid or a halogeno alkyl phosphonic acid or with a salt thereof, in amounts such that not all of the N-atoms of the polyethylene-imine are substituted, and reacting the pre-polymer obtained with a polyhalogenoaliphatic compound or with a aliphatic compound containing at least one halogen atom and at least one epoxy group. The halogeno aliphatic carboxylic acid preferably contains from 2-5 carbon atoms, those specified being chloroacetic acid and b -chloropropionic acid. Specified halogeno alkyl phosphonic acids are chloromethyl and chloroethylphosphonic acid. In the pre-polymer preferably 10-30% of the nitrogen atoms should remain unsubstituted. The mildly alkaline conditions are preferably pH 10-11 at 80-100 DEG C. Specified cross-linking compounds (i.e. halogenoaliphatic compounds) are epichlorohydrin, epibromohydrin, dichlorohydrin, dichloroethyl ether, dichloroethylene, dichloropropylene and di-bromoethylene. The examples describe the preparation of (1) an a -amino carboxylic acid resin, (2) an a -aminophosphonic acid resin. Specification 976,567 also is referred to. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-108479713-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4020019-A |
| priorityDate | 1960-02-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 44.