| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_385752f237551ca1b257f160a0f2434b |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C2603-68
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B2103-408 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B28-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C309-25
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B24-22
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F32-04 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C309-25
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B28-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F8-36
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B24-16
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B24-22
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F32-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F32-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G61-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B24-30 |
| filingDate |
1983-09-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1ad009e4857ec6f7b4748020a4993c1f
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_fef18186bb23a95c13307df0b2121f24
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2b4e836ada9af22f89aa6b8f5f1506f7 |
| publicationDate |
1984-04-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
WO-8401381-A1 |
| titleOfInvention |
Sulfonic acid compounds having cyclopentadiene skeleton and compositions containing them and cement |
| abstract |
Compounds having a cyclopentadiene skeleton and at least one sulfonic acid group are novel. They are prepared by subjecting cyclopentadiene, dicyclopentadiene and/or hydroxydicyclopentadiene to sulfonation reaction and subjecting, before or after the reaction, to reaction with alkylbenzene, polymerization reaction and/or condensation reaction. They are useful as dispersing agents for cements. The dispersing effect of the dispersing agent containing at least one sulfonic acid group is improved and the fluidizing effect of the agent is further accelerated by compounding a slurry composition containing a powdery substance and dispersing agent with 0.05 to 50 parts by weight, per 100 parts by weight of the dispersing agent, of a polymer emulsion. The compounding thus extremely reduces slump loss and improves workability. |
| priorityDate |
1982-10-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |