| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_b502fde933db1d6126d10bbcbddb83ea |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10S516-92 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K23-42
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G65-2609
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G65-30
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K23-00 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G65-26
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G65-30
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K23-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K23-42 |
| filingDate |
1989-01-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1991-12-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f71eb19c2260ac2b3f088dfd41fe0eb7
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9b99c5465001ac5b4cf85d738f19da75
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d573acfc430fffc067ce8cf43bf2ba87
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3746dd3ab43a81555f2d3ee1b34e7cdc
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1332785f3768db280b0b46a6a01d4b03 |
| publicationDate |
1991-12-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-5069817-A |
| titleOfInvention |
Process for making polyoxyethylene surfactants with desirable low temperature behavior |
| abstract |
A process for the production of alkyl polyoxyethylenes showing improved low-temperature behavior, by reaction of alcohols with ethylene oxide at elevated temperature in the presence of basic alkali metal compounds as catalysts and subsequent neutralization of the alkaline catalyst with acids, which under prior art practice was impractical because of clogging of reaction vessels and equipment associated with precipitation of salts during neutralization, is made practical by adding a finely divided solid to serve as a precipitation control agent during neutralization. The finely divided solids used are, in particular, organic and/or inorganic materials known in the prior art as filter aids, such as kieselguhr and sawdust or other finely divided cellulose. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5437790-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-107446124-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6582505-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2009143625-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8017814-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2008171895-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11124722-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2018178391-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7427588-B2 |
| priorityDate |
1988-01-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |