http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-1147016-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_c7ad58d3c0b071069a8ee0cb8c8ba2e8 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G73-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01B3-302 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01B3-307 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G18-348 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G73-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G18-34 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01B3-30 |
| filingDate | 1968-02-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_281ae8e1db822beafc14180c01620c7c http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_bcbe906c3848fc037d35ee16b10a9063 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a2962152c0c7ef57c34603d6ca5065f2 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_04e0c3de4cd4c5a63f962dfe9649644a http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2cbc5a4f988c87a8fab7cecae50d2b25 |
| publicationDate | 1969-04-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-1147016-A |
| titleOfInvention | Poly-1,3-benzoxazine-2,4-dione electric insulating films |
| abstract | 1,147,016. Poly-1,3-benzoxazine-2,4-dione films. FARBENFABRIKEN BAYER A.G. 20 Feb., 1968 [21 Feb., 1967], No. 8129/68. Heading B5B. [Also in Division C3] A poly- 1 ,3-benzoxazine-2,4-dione film, is made by casting a solution in an inert organic solvent of the said polymer, obtained by reacting a di-o-hydroxyaryl dicarboxylic acid aryl ester with an organic diisocyanate in an organic solvent in a one step reaction, to form a film, and drying and stretching the film to at least twice its original length, the stretching being effected at a temperature of at least 200‹ C. The inert organic solvent may be dimethylformamide, dimethylacetamide, tetramethylenesulphone, dimethylsulphoxide, or a halo. genated hydrocarbon, e.g. methylene chloride, chloroform, tetrachloroethane or chlorobenzene. Mixtures of these solvents with other solvents such as aromatic hydrocarbons, e.g. benzene, toluene, aliphatic ethers e.g. diethylether, diisopropylether, or cyclic ethers, e.g. dioxane or tetrahydrofuran may also be used. Stretching is preferably effected at a temperature of from 250 to 300‹ C. Films so made, unlike prior films of the same material, are soluble, and have good electrical insulating properties. Examples are given. |
| priorityDate | 1967-02-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
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