| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_af99df08b153738cd418446a75d09bfc |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G73-0655
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G59-066
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G59-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G59-32 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G59-32
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G59-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G59-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G73-06 |
| filingDate |
1986-12-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1988-03-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a16aed906271659edc35da2d1757eae8 |
| publicationDate |
1988-03-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-4731431-A |
| titleOfInvention |
Co-oligomerization product of a mixed cyanate and a polymaleimide |
| abstract |
Hydroxyaromatic oligomers are prepared by (I) reacting (A) an aromatic hydroxyl-containing material such as bisphenol A with (B) a cyanogen halide such as cyanogen bromide in the presence of a base such as triethylamine and (II) co-oligomerizing the cyanate-containing product from (I) with (C) a polymaleimide such as the reaction product of maleic anhydride with methylenedianiline optionally in the presence of (D) a co-oligomerization catalyst such as cobalt naphthenate. These oligomers are useful in the preparation of epoxy resins. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2010127349-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5159030-A |
| priorityDate |
1986-02-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |