http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-1494754-A
Outgoing Links
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|---|---|
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| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10T442-268 |
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| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D06M13-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L67-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D21H21-34 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08K5-53 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D06M13-447 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D06M13-44 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07F9-40 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08K5-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07F9-38 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D06M13-322 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D06M13-288 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07F9-6571 |
| filingDate | 1975-01-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1977-12-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-1494754-A |
| titleOfInvention | Dicarbamic acid diesters containing phosphorus |
| abstract | 1494754 Dicarbamic acid diesters containing phosphorus BAYER AG 16 Jan 1975 [17 Jan 1974] 1908/75 Heading C2P [Also in Division D1] Novel compounds of the formula wherein R 1 is straight or branched C 1-4 alkylene, optionally substituted by one or more halogen atoms, R 1 and R 2 , independently, are C 1-4 alkyl, optionally substituted by halogen, or together with the O and P atoms form a 5- to 7-membered heterocyclic structure, R 2 is H, -CH 2 OH, or C 1-4 alkoxy-methyl, and R 4 is a divalent organic radical with at least 2 carbon atoms, which is free from hydroxyl groups, and in which the two free bonds must be attached to different carbon atoms, with the proviso that R is methylene when R 4 is alkylene, and wherein the phosphorus content of the diesters is more than 5% by weight, may be obtained (A) by reacting an ester of formula with a diisocyanate of formula OCN-R 4 -NCO and optionally methylolating the product with HCHO or a HCHO donor and optionally etherifying the methylol compound with a C 1-4 alkanol, (B) by reacting a compound of formula X-R<SP>1</SP>-OCONH-R 4 -NHCOOR<SP>1</SP>X in which X is Cl or Br and R<SP>1</SP> is C 2-4 alkylene, with a phosphorus acid triester (R 5 O).P(OR 6 )(OR 7 ) where R 5 , R 6 and R 7 , independently are C 1-4 alkyl, optionally substituted by halogen, or R 5 and R 6 together with O and P atoms from a 5 - to 7- membered heterocyclic structure, at 100-200 C. and optionally metholating and etherifying as in (A) above; (c) by reacting where R<SP>11</SP> is C 2-4 alkenyl, with (R 5 O)(R 6 )P(O).H, in the presence of free radical-forming catalysts and optionally methylolating and etherifying as above, or (D) by reacting a chloroformic acid ester of formula (R 1 O)(R 2 O)P(O)-R-OCOCl with an amine H 2 N-R 4 -NH 2 and optionally methylolating and etherifying as above. The products are useful as flame retarding agents for natural or synthetic fibres, paper and plastics materials. |
| priorityDate | 1974-01-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 36.