http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H04110323-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_6cfc033f059d282fcd915bc8be2ae53f |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G65-42 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G65-40 |
| filingDate | 1990-08-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_be3bb2df4ed052a0a7bd589a68437758 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_07acd45dd1c4cc155e030a761f04a8b7 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_cf6da9169836a56066ce01bdec3c05ba |
| publicationDate | 1992-04-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-H04110323-A |
| titleOfInvention | Preparation of phenol polymer |
| abstract | PURPOSE: To prepare a phenol polymer without generating a hydrogen halide at a reduced cost by reacting a specific aralkyl compd. with a phenol or, if necessary, a mixture thereof with an arom. compd. n CONSTITUTION: A phenol or a mixture thereof with an arom. compd. is prepd. Separately, an arom. bishydroxymethyl compd. is thermally reacted in the presence of sulfamic acid, catalyst to give an aralkyl compd. comprising a polymer of the formula [wherein R is (alkyl-substd.) phenylene, biphenylene, a divalent diphenyl ether residue, or naphthylene; and n is 1-100]. The aralkyl compd. is reacted with the phenol or the mixture in an amt. of 1.3-15mol based on one mol of the structural units of the aralkyl compd. in the presence of an acid catalyst at 120-200°C for 2-10hr to give a phenol polymer. n COPYRIGHT: (C)1992,JPO&Japio |
| priorityDate | 1990-08-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 22.