http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CA-1295776-C
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_314c06079c36e730c9e6318c0e96181a |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G73-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G73-1046 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G73-1071 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G73-10 |
| filingDate | 1987-11-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1992-02-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d359b42c8f7614e5cfac65c6c8014830 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_873adb404eda888989237a906091cdb3 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6db7cfdbd52603e692763db6b0e41453 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ffca05ddec3ef45d7b59f35169441285 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_36201e9515c7fbbfd094315bb362b328 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_cb4fcd9e11a36a07e59ffda6a26c23b6 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_386db3e1c43b41f873afbe9cc4473daf |
| publicationDate | 1992-02-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CA-1295776-C |
| titleOfInvention | Polyimide |
| abstract | POLYIMIDE ABSTRACT Polyimide of this invention is almost colorless and has remarkably high light transmittance as well as excellent processability and adhesive properties at high temperatures in addition to its substantial high-temperature stability. The polyimide is a novel polyimide capable of being used for space and aeronautical materials, electric and electronic members, automotive parts, and furthermore for high-temperature adhesives. The polyimide has recurring units of the following formula (I): (1) wherein X is a radical selected from the group consisting of a bond, divalent hydrocarbon radical having from 1 to 10 carbons, hexafluorinated isopropylidene radical, carbonyl radical, sulfonyl radical and thio radical, and each nitrogen atom of imide ring is located simulatineously at meta- or para-position to ether linkage The polyimide of this invention is prepared by reacting 4,4'-(p-phenylenedioxy)diphthalic dianhydride with an ether diamine having the following general formula (V): (V) and successively imidizing the resultant polyamic acid. Examples of the ether diamine used for preparing the polyamide include, 2,2-bis[4-(3-aminophenoxy)phellyl]propane, 2,2-bis[4-(4-aminophenoxy)phenyl]propane, 2,2-bis[4-(3-aminophenoxy)phenyl]-1,1,1,3,3,3-hexafluoropropane, 2,2-bis[4-(4-aminophenoxy)phenyl]-1,1,1,3,3,3-hexafluoropropane, 4,4'-bis(3-aminophenoxy)biphenyl, 4,4'-bis(4-aminophenoxy)biphenyl, bis[4-(3-aminophenoxy)phenyl] ketone, bis[4-(4-aminophenoxy)phenyl] ketone, bis[4-(3-aminophenoxy)phenyl] sulfide, bis[4-(4-aminophenoxy)phenyl] sulfide, bis[4-(3-aminophenoxy)phenyl] sulfone and bis[4-(4-aminophenoxy)phenyl] sulfone. BACKGROUND OF THE INVENTION The present invention relates to a novel polyimide and more particularly to the polyimide which is almost colorless, capable of being extrusion or injection molded and is furthermore excellent as high-temperature adhesive. Conventional polyimide obtained by the reaction of tetracarboxylic dianhydride with diamine has excellent electrical and mechanical properties in addition to its good high-temperature stability. Therefore the polyimide has been used in many fields such as electric and electronic members, space and aeronautic materials and |
| priorityDate | 1986-11-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 79.