http://rdf.ncbi.nlm.nih.gov/pubchem/patent/DE-4332964-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_5c24684033fba97d1ad845ce453a57e3 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J2531-98 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D213-74 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G65-4093 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D401-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J31-0284 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D213-74 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G65-40 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J31-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D401-04 |
| filingDate | 1993-09-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d37a2b2aecaa2a95d7657a84e75822dd http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_89c14c24beb113f901b8f3aa3be7d4ba http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_cd5306988e41ac383ce3daa8e1bb12d6 |
| publicationDate | 1994-04-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | DE-4332964-A1 |
| titleOfInvention | Process for the preparation of aromatic polyether ketones |
| abstract | In the prodn. of polyetherketones by reaction of an aromatic dihydroxy cpd. of formula HO-Ar-OH (I) with an aromatic dihalo cpd. of formula Hal-Ar2-Co-Ar3-Hal (II) at elevated temp. in an aprotic-polar solvent in presence of an alkali metal carbonate, a phase transfer catalyst is present. (where Ar = phenylene, 10-30C condensed aromatic gp. or 2-5 phenylene gps. bonded via single bonds, (thio) ether bridges, carbonyl gps., sulphone gps. or methylene gps. (opt. with H replaced by 1-5C alkyl), the aromatic rings being opt. substd. by 1-4C alkyl, NO2, Cl and/or Br, with the proviso that no one ring is substd. by halogen and NO2 at the same time; Hal = Cl and/or F; and Ar2 and Ar3 = 6-24C aromatic gps. with Ar3 also opt. being a no. of phenylene rings connected viz. one or more carbonyl or sulphonyl gps. and opt. also (thio)ether gps., with both Hal in p- or o-position to a -CO- and/or -SO2- gp.). ADVANTAGE - High mol. wt. amorphous or partially crystalline polymers are obtd. in high space-time yield using easily-obtd. bischloroaryl ketones. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2007090533-A3 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2007090533-A2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0859022-A1 |
| priorityDate | 1992-10-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
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