http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4405521-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_2bdee527ae89a3bba87c6a9e076c499c |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D405-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D209-48 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F38-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F2-60 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F38-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D405-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F2-60 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D209-48 |
| filingDate | 1982-03-02^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1983-09-20^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_aedde26d25830ef0afc019425eab7258 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c9a06ce4a877d8f9dc46cb306bb9e403 |
| publicationDate | 1983-09-20^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-4405521-A |
| titleOfInvention | Addition products of di-acetylene-terminated polyimide derivatives with a polyimide having terminal ethylenic groups |
| abstract | Novel, unsaturated diacteylene-terminated polyimides and processes for their preparation are disclosed herein. There new polyimides are derivatives of anhydride-terminated aromatic polyimides from which they can be prepared by amidation to provide new unsaturated amide groups having a terminal group containing the structure -C 3BOND C-C 3BOND C-, hereinafter sometimes referred to as "conjugated diynes". These new compositions are more tractable than the original anhydride-terminated polyimides and can be converted at appropriate lower temperatures to crosslinked, insoluble, infusible polymers without by-product formation, thereby extending greatly the applications for which the aromatic polyimides can be employed. Moreover, these new polyimides can undergo the Diels-Alder type of addition with a large number of dienophiles. Certain nonomeric materials are also described. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4835197-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4920005-A |
| priorityDate | 1980-10-22^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
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