| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_0ddb9f3656270bc5410be3679322fead
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_52b1ef5f7017f3d5617332009fcb9d77
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_b5ff346a697d72a1112bbf146d87a79c |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10T428-31681
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H05K1-0393
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10T428-2826
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J2379-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H05K2201-0154 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G73-1046
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G73-1042
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G73-105
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G73-1071
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G73-101
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G73-1028
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H05K1-0393
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J5-18
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H05K1-0346 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G73-00 |
| filingDate |
2005-09-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2013-08-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c1f84b9c4db98e0a13b731ff3369f4a2
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a6adf511abb0d0bedd1d2808568d695b |
| publicationDate |
2013-08-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-8513373-B2 |
| titleOfInvention |
Process for production of polyimide film having high adhesiveness |
| abstract |
A process for the production of non-thermoplastic polyimide film whose precursor solution has high storage stability and which exhibits high adhesiveness even without expensive surface treatment, more specifically, a process for the production of non-thermoplastic polyimide film made of a non-thermoplastic polyimide containing a block resulting from a thermoplastic polyimide which comprises (A) the step of forming a prepolymer having amino or an acid anhydride group at the end in an organic polar solvent (B) the step of synthesizing a polyimide precursor solution by using the obtained prepolymer, an acid anhydride, and a diamine in such a way as to become substantially equimolar over the whole step, and (C) the step of casting a film-forming dope containing the polyimide precursor solution and subjecting the resultant dope to chemical and/or thermal imidization, wherein the diamine and acid dianhydride used in the step (A) are selected so that the reaction of both with each other in equimolar amounts can give a thermoplastic polyimide, and the polyimide precursor obtained in the step (B) is a precursor of a non-thermoplastic polyimide. |
| priorityDate |
2004-09-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |