http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0563098-B1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_c0bdbaa7d1404425011d1b246ed5628a |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10G31-11 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D71-62 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G18-003 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D71-80 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G18-65 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G18-58 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D61-36 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G59-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D71-56 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D71-62 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D71-54 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C10G31-11 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G18-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G18-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D71-80 |
| filingDate | 1991-11-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1995-04-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e056a1a863724f6427229262cab2ce02 |
| publicationDate | 1995-04-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | EP-0563098-B1 |
| titleOfInvention | Multi-block polymer comprising an oxazolidone prepolymer chain extended with a compatible second prepolymer, the membrane made therefrom and its use in separations |
| abstract | A multi-block polymer comprising an oxazolidone prepolymer chain extended with a second compatible prepolymer, the membrane made therefrom and the use of said membrane in aromatics/non-aromatics separations is disclosed. The multi-block polymer comprises an oxazolidone containing prepolymer chain extended with a second compatible prepolymer, said second prepolymer selected from the group of prepolymers produced by combining a) an (A) diisocyanate with a monomer selected from (B) polyester dianhydride or corresponding tetraacid or diacid-diester, and diamine in an A/B mole ratio ranging from about 2.0 to 1.05, preferably 2.0 to 1.1; b) an (A) dianhydride or its corresponding tetraacid or diacid-diester with a monomer selected from (B) epoxy, diisocyanate, polyester and diamine in an A/B mole ratio ranging from about 2.0 to 1.05, preferably about 2.0 to 1.1, or c) an (A) diamine with a monomer selected from (B) epoxy, diisocyanate, dianhydride, or its corresponding tetraacid or diacid-diester in an A/B mole ratio ranging from about 2.0 to 1.05, preferably about 2.0 to 1.1, and mixtures thereof. The membranes made from these multi-block polymers comprising thin dense films of said polymer deposited on a micro-porous support are also claimed. The membranes are useful for separating aromatic hydrocarbons from mixtures of same with non-aromatic hydrocarbons under perstraction or pervaporation conditions. |
| priorityDate | 1990-12-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
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