| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_7ef01e33058cf740cf2197991be97af1 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10T428-31678
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10T428-31681
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10T428-31721
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H05K1-0346
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10S428-901
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10T428-31504 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G73-1071
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G73-1082
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G73-1067
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G73-1042
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G73-10 |
| classificationIPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H05K1-03 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G73-10 |
| filingDate |
2001-08-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a68d81b01f51bdd5be710a8d52034b48
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c3e3870fd8e0acc823bab69b3dc6e97b
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_60976c6dccee0efe5f36d4d868f2878f |
| publicationDate |
2002-09-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
EP-1236756-A1 |
| titleOfInvention |
Novel polyimide and circuit substrate comprising the same |
| abstract |
The invention is a polyimide, random copolymer having repeating units of the formula (1): <CHEM> wherein R1 and R2 each represent a divalent group selected from <CHEM> and R1 and R2 may be the same or different; and x = 0.60 to 0.80, y + z = 0.40 to 0.20, and x + y + z = 1.00, and a linear expansion coefficient at 100 to 200 DEG C is in the range of from 10 to 20 ppm/K. This is a useful polyimide that can be a polyimide circuit substrate material capable of keeping flat, neither shrinking nor expanding in its laminate. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2004031270-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9469048-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2022220484-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-2886583-A1 |
| priorityDate |
2000-08-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |