| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_2a6a9431aa1fe5109ca95ad4e332231b |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10T428-31504
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10S526-935
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10T428-31721 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C217-90
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09J179-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G73-1078
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G73-101
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C225-22
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L79-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G73-1042
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G73-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G69-26 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B32B27-34
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G73-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C217-90
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C225-22
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09J179-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J5-18 |
| filingDate |
1995-08-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1997-02-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4a1ea5a5b783cce95b96d97d9028619a
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_981dbc79b5e2daedc622f2c919175fa6
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5c4fa476106065491762955870803514 |
| publicationDate |
1997-02-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-5606014-A |
| titleOfInvention |
Imide oligomers and co-oligomers containing pendent phenylethynyl groups and polymers therefrom |
| abstract |
Controlled molecular weight imide oligomers and co-oligomers containing pendent phenylethynyl groups (PEPIs) and endcapped with nonreactive or phenylethynyl groups have been prepared by the cyclodehydration of the precursor amide acid oligomers or co-oligomers containing pendent phenylethynyl groups and endcapped with nonreactive or phenylethynyl groups. The amine terminated amide acid oligomers or co-oligomers are prepared from the reaction of dianhydride(s) with an excess of diamine(s) and diamine containing pendent phenylethynyl groups and subsequently endcapped with a phenylethynyl phthalic anhydride or monofunctional anhydride. The anhydride terminated amide acid oligomers and co-oligomers are prepared from the reaction of diamine(s) and diamine containing pendent phenylethynyl group(s) with an excess of dianhydride(s) and subsequently endcapped with a phenylethynyl amine or monofunctional amine. The polymerizations are carried out in polar aprotic solvents such as under nitrogen at room temperature. The amide acid oligomers or co-oligomers are subsequently cyclodehydrated to the corresponding imide oligomers. The polymers and copolymers prepared from these materials exhibit a unique and unexpected combination of properties. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-1148078-A1
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| priorityDate |
1995-08-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |