Predicate |
Object |
assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_af7c9c966acd2ef7eca105d82d8d0991 |
classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07G99-002 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-203 |
classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07G99-00 |
filingDate |
1993-11-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6afc3c17587e2a6264d9465193614ee8 |
publicationDate |
1994-06-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
publicationNumber |
EP-0600343-A1 |
titleOfInvention |
Tin/cerium compounds for lignosulfonate processing |
abstract |
This invention concerns tin-, cerium-, and base-treated tin-bearing lignosulfonates, a process for their preparation from calcium lignosulfonate, and a process for the use thereof as drilling fluid additives. |
priorityDate |
1992-11-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
type |
http://data.epo.org/linked-data/def/patent/Publication |