http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CA-2148936-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_1dc257bb71addfc9d350ea7048ac1f02 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G18-003 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G18-771 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K19-3823 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K19-3804 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G18-8125 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G59-40 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G18-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G18-58 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K19-38 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G18-81 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G18-77 |
| filingDate | 1994-09-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_aaeab032cb100a9cec0df7a5f9dc7ee2 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4d3cea58f62ec64df5248d26743b54fc |
| publicationDate | 1995-03-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CA-2148936-A1 |
| titleOfInvention | Anisotropic polymers and a process for their production |
| abstract | Described are anisotropic polymers produced from a diepoxide A of the formula (I) in which: Y is O-CY2, CH2 or a C-C single bond; X is one of structural elements (a), (b), (c), (d), (e) or (f); R1 to R5, independently or each other, are hydrogen, halogen or a methyl, ethyl, propyl or butyl group; or R2, R3, R4 or R5 may be a benzene group, whereby R2 to R5 is hydrogen when R1 is not hydrogen and R1 is hydrogen when R2 to R5 are not hydrogen, and n may be 1 to 3; whereby the central grouping Z may be an aromatic heterocyclic ring containing one or two nitrogen atoms or a cycloaliphatic trans-1,4-cyclohexylene group, and from a diisocyanate B of one of the formulae (II) to (VII) in which: Y is a C-C single bond, CH2 or C2H4; X is one of structural elements (a), (b), (c) or (f), n is 0 or 1 and R1 to R5 are the atoms or groups given in the definition of formula (I): whereby the central grouping Z may also be a cycloaliphatic trans-1,4-cyclohexylene group, and R is (CH2)6-NCO, the molar ratio of diepoxide A to diisocyanate B being about 2:1 to 1:4. Also described is a method for the production of such anisotropic polymers, in which the diepoxide A and the diisocyanate B are reacted at a temperature of about 100 to 300 °C at a molar ratio of about 2:1 to 1:4. These anisotropic polymers have a low coefficient of thermal expansion in the direction of orientation of the molecules and can be used in the manufacture of insulation materials, laminates and coatings. |
| priorityDate | 1993-09-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 29.