http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-3781240-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_205ef3efc4027b8a493914cc4c917f0a |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G73-14 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G73-14 |
| filingDate | 1971-12-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1973-12-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f8d18359f7af72cbd5632f7316735ebb |
| publicationDate | 1973-12-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-3781240-A |
| titleOfInvention | Polyimide molding powders |
| abstract | IMPROVED POLYIMIDE MOLDING POWDERS ARE FORMED AT LOW COST BY PYROLYTICALLY POLYMERIZING COMPOUNDS OF THE GENERAL FORMULA E1-(R1-N<(-CO-)2>R3-CO-NH-R2-NH-CO-R3<(-CO-)2>N)N-R1-E2 WHERE: E1 AND E2 ARE INDIVIDUALLY SELECTED FROM THE CLASS CONSISTING OF 1,3-DI(O=),7A-Y1,3A-Y2,4-Y3,5-Y4,6-Y5,7-Y6,8-(Y7-X-)-1,3, 3A,4,7,7A-HEXAHYDRO-4,7-METHANOISOINDOL-2-YL WHERE C8 IS Y8, AND 2,5-DI(O=),3-Y2,4-Y1-3-PYRROLIN-1-YL WHERE: X IS A MEMBER OF THE CLASS CONSISTING OF CARBON, OXYGEN, SULFUR, AND CARBONYL Y1-Y6; AND Y7 AND Y8 WHEN PRESENT, ARE INDIVIDUALLY SELECTED FROM THE CLASS CONSISTING OF HYDROGEN, AROMATIC GROUPS, SUBSTITUTED AROMATIC GROUPS, SATURATED OR UNSATURATED HYDROCARBON GROUPS, HAVING 1 TO 6 CARBON ATOMS, ALKYL ETHERS, ARYL ETHERS, HALOGENS, AND NITRO GROUPS; R1 AND R2 ARE INDIVIDUALLY SELECTED FROM THE CLASS CONSISTING OF AROMATIC GROUPS, SUBSTITUTED AROMATIC GROUPS, SATURATED AND UNSATURATED HYDROCARBON GROUPS, SATURATED AND UNSATURATED HETEROCYCLIC GROUPS, AND MIXTURES THEREOF; R3 IS SELECTED FROM THE CLASS CONSISTING OF SUBSTITUTED AROMATIC GROUPS, UNSUBSTITUTED AROMATIC GROUPS, SATURATED CYCLIC GROUPS, UNSATURATED CYCLIC GROUPS, SATURATED HETEROCYCLIC GROUPS, AND UNSATURATED HETEROCYCLIC GROUPS, AND N IS ONE OR MORE FOR A SINGLE PREPOLYMER AND STATISTICALLY GREATER THAN 0 FOR A MIXTURE. THE MOLDING POWDERS MAY ALSO BE FORMED BY PYROLYTICALLY POLYMERIZING THE NOVEL AMIC-ACID PRECURSORS OF SAID PREPOLYMERS WHICH ARE CHARACTERIZED BY THE FORMULA E3-(R1-NH-CO-R3(-COOH)-CO-NH-R2-NH-CO-R3(-COOH)-CO-NH)N- R1-E4 WHERE: E3 AND E4 ARE INDIVIDUALLY SELECTED FROM THE CLASS CONSISTING OF 1-Y6,2-Y1,2-((-)NH-CO-),3-(HOOC-),3-Y2,4-Y3,5-Y4,6-Y5, 1,4-(-Y8N-X-Y7)-)CYCLOHEX-5-ENE, AND HOOC-C(-Y2)=C(-Y1)- CO-NH- WHERE: X1, Y1-Y6 AND Y7 AND Y8 ARE DEFINED AS DEFINED ABOVE; AND R1, R2, R3 AND N ARE AS DEFINED ABOVE. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5756597-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5817744-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5554769-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5602226-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-3870674-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5573854-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5587105-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5739256-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5610317-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4403061-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5618907-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5070163-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5969079-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5714566-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5506060-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4110294-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6583255-B1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5705574-A |
| priorityDate | 1971-12-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 51.