http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H0280431-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_9e1bf06f55de84b78abc9a057807f7eb http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_d8592fb6db0462e8981ef38a4a6846d9 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G73-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D01F6-74 |
| filingDate | 1988-09-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_de50a22111d776e6e5ddf0e1e70860fc http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b3eb89f736ce5c6fb7c166653d496c42 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f2dc569723e4641b9dca8fa2d16d361c http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_eb3a8ff953366d4cd3930a180fa7ae19 |
| publicationDate | 1990-03-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-H0280431-A |
| titleOfInvention | Polyimide fiber or film |
| abstract | PURPOSE: To obtain a polyimide fiber or film which has excellent heat resistance and can be industrially and easily manufactured by forming a copolyimide consisting of specified tetracarboxylic acid component and diamine component into a fiber or a film. n CONSTITUTION: A polyimide fiber or film is prepared from a copolyimide wherein the tetracarboxylic acid component consists of benzophenone-3,3',4,4'- tetracarboxylic acid (I) and diphenylsulfone-3,3',4,4'-tetracarboxylic acid (II) and the diamine component consists of 4,4'-diaminodiphenylmethane (III) and diaminotoluene (IV). Said copolyimide is obtd. by performing dehydration of dianhydrides of said acids (I) and (II) with said diamines (III) and (IV) in a solvent at about 50-200°C under stirring, if necessary, in a vacuum. Taking moldability and physical properties into consideration, it is pref. that this copolyimide should have an inherent viscosity of 0.35-1.2 measured in a solvent of N-methyl-2-pyrrolidone at 30°C. n COPYRIGHT: (C)1990,JPO&Japio |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2013117015-A |
| priorityDate | 1988-09-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 24.