http://rdf.ncbi.nlm.nih.gov/pubchem/patent/RO-135522-A2
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_5c1496ee22f9a7f75e0dc30e6633e01d |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09D179-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G73-16 |
| filingDate | 2020-08-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0b86cb32cddbf80e2e844d52070b1af7 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ec07b744b187d7903dc2c74cc518d0b5 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5d305382ce9a02aa1ab0e5ccf374af17 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6e57bfc2ddb8cb6633772aa19fd2ae64 |
| publicationDate | 2022-02-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | RO-135522-A2 |
| titleOfInvention | PROCESS FOR OBTAINING A CYCLOHEXANONE DIANHYDRIDE USED IN THE PREPARATION OF FLEXIBLE POLYESTERIMIDIC FILMS |
| abstract | The invention relates to a process for obtaining high performance flexible polyesterimide films. The process according to the invention consists in the one-step synthesis of a bifunctional monomer of the bisanhydride type by the condensation reaction of the -OH phenolic function of 2,6-bis- (4-hydroxybenzylidene) cyclohexanone with the -COCl group of trimethyl chloride, followed by a two-step polycondensation reaction of commercial aromatic diamine bisanhydride to obtain polyamide acid by adding solid dianhydride to the solution obtained by dissolving diamine in N-methylpyrrolidone, which by pouring on glass plates and applying a heat regime between 50 and 50 ° C, results in flexible, homogeneous polyesterimide films with high transparency, low roughness and hydrophilic characteristics. |
| priorityDate | 2020-08-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 35.