http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-1475219-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/C07D251-26 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G73-065 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G18-833 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-916 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D251-34 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-91 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D251-26 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G18-83 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D251-34 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G73-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G73-00 |
| filingDate | 1975-10-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1977-06-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-1475219-A |
| titleOfInvention | S-triazine prepolymers |
| abstract | 1475219 s-Triazine prepolymers BAYERAG 24 Oct 1975 [3 Dec 1974 5 March 1975] 43756/75 Heading C3R In a process for the preparation of s-triazine prepolymers (a) an aliphatic, cycloaliphatic or aromatic dihydroxy or polyhydroxy compound is condensed with more than 1/3 mol of cyanuric chloride per hydroxyl group and (b) the resulting condensation product is condensed with an aromatic dihydroxy or polyhydroxy compound in such a way that more than 1 hydroxyl group equivalent of the aromatic dihydroxy or polyhydroxy compound is used per unconverted chlorine atom of the condensation product obtained from (a), and (c) thereafter, the free hydroxyl groups of the condensation product obtained from (b) are reacted with a cyanogen halide in the presence of a base. The prepolymers have free cyanate groups which enable them to be cross-linked. In examples the hydroxy compounds reacted with cyanuric chloride in step (a) are ethylene glycol, 1,6- hexanediol, 1,2 - propanediol, 2,2- bis - (4- hydroxycyclohexyl) - propane, 4,4<SP>1 </SP>- dihydroxyphenyl, 2,2 - bis - (3,5 - dimethyl - 4- hydroxyphenyl) - propane, 2,2 - bis - (3,5- dichloro - 4 - hydroxyphenyl) - propane, diethylene glycol, tetraethylene glycol and a polyester having hydroxyl groups and obtained from butane diol, ethylene glycol and adipic acid; the products are condensed in step (b) with 2,2-bis-(p-hydroxyphenyl)-propane, 1,1- bis - (4 - hydroxyphenyl) - cyclohexane, resorcinol and hydroquinone; the products are then reacted in step (c) with cyanogen chloride in the presence of triethylamine to obtain the prepolymers. |
| priorityDate | 1974-12-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 59.