| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_8b919a09598a02c07e8429b1441b76e1 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07F9-65748
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07F9-6578
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08K5-527 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07F9-6578
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07F9-6574
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08K5-527 |
| filingDate |
1992-02-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_703235045cda9f1a22f6811e80d44190 |
| publicationDate |
1992-10-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
WO-9216537-A1 |
| titleOfInvention |
Alkyl-aromatic diphosphites |
| abstract |
Novel alkyl-aromatic disphosphites having antioxidant and flame-retarding abilities and corresponding to formula (I), can be prepared by reacting a 2,2'-bridged bisphenol corresponding to formula (II), with pentaerythritol dichlorophosphite at 20-150 °C in the presence of a basic catalyst; R and R' in the formulas representing hydrocarbyl groups, R'' being a divalent bridging group, and n being 0 or 1. These diphosphites have good hydrolytic stability per se and can be made even more resistant to hydrolysis by stabilizing them with at least 0.5 % by weight of an acid scavenger, preferably before they are recovered from their synthesis reaction mixtures. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-9635694-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-9635695-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0558040-A2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0558040-A3
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5565600-A |
| priorityDate |
1991-03-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |