http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-1431179-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_46ffc67cd29dd51dbd0bc0e335dd3994 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-6828 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-52 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-682 |
| filingDate | 1972-08-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1976-04-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-1431179-A |
| titleOfInvention | Flame resistant polyesters display card |
| abstract | 1431179 Flame-resistant polyesters BP CHEMICALS INTERNATIONAL Ltd 25 July 1973 [3 Aug 1972] 36241/72 HeadingC3R Flame-resistant unsaturated polyesters are made by (1) condensing maleic or fumaric acid or maleic anhydride with a dihydric alcohol at an elevated temperature to produce a substantially hydroxyl terminated ester, (2) cooling the ester and adding bromine or chlorine to halogenate the α#-ethylenic unsaturation of the ester and (3) reacting the halogenated ester with sufficiently α#-ethylenically unsaturated dicarboxylic acid or anhydride to yield the polyester. The dihydric alcohol may be ethylene glycol, propylene glycol, diethylene glycol, triethylene glycol, dipropylene glycol or mixtures thereof. In addition to the use in stage (3) of unsaturated acids, saturated acids and/or anhydrides may also be used. An example describes the preparation of a brominated ester. |
| priorityDate | 1972-08-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 37.