| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_b9911abdd3631214895cc6dae252f9f4 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B2103-408 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B24-20
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B24-163
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B24-2688
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B24-2676
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K23-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F220-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F220-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B28-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K23-16
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F220-28
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B24-2641
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B24-2647 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K23-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B28-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B24-20
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K23-52
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B24-26
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F220-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B24-16 |
| filingDate |
2004-02-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_591e74431f92e855908563d87f07b7af
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a97d99737b2d44fed6fb87eecb0716fc
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_473a4f5ae63383262869facff4bea22d
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d1eeef0d5a3ed1821bb6abf4e10f7635
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7527518a60c41b36670967ba6078145d |
| publicationDate |
2006-02-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
BR-PI0408086-A |
| titleOfInvention |
polymeric dispersant as fluidizing agent of hydraulic binder compositions and preparation process |
| abstract |
"POLYMERIC DISPERSANT AS A FLUIDIFYING AGENT OF HYDRAULIC BINDER COMPOSITIONS AND PREPARATION PROCESS". Polycarboxylated polymeric dispersant comprising at least one copolymer obtained from a monomer composition comprising in moles: A) 40 to 95% of at least one unsaturated carboxylic monomer B) 5 to 60% of at least one acrylic ester monomer or methacrylic containing a polyether chain C) 0 to 20% of at least one third monomer selected from: acrylic ester or methacrylic ester or acrylamide or acrylamide derivative or aromatic vinyl monomer or sulfonated derivative thereof the copolymer having a controlled molecular weight distribution, obtainable by a process comprising the steps of: i) polymerization in aqueous solution at a temperature ranging from 70 to 95 ° C, with a pumping and transfer system comprising: D) an oxidizing agent, E ) a reducing agent, selected from the metabisulphite salts, preferably sodium or potassium metabisulphite, the monomers / reduct molar ratio not exceeding 50. (ii) Semi-continuous addition of oxidant and monomer mixture within 1 to 4 hours. (iii) introduction of the reducer either into the pan foot with the onset of oxidant and monomer in semi-continuous mixed with the monomers or in semi-continuous in separate feed of these and the oxidant. The invention also relates to a specific process of preparation and use as a fluidizing agent in mineral hydraulic binder compositions or as a dispersing agent in pigment masses or aqueous polymer dispersions. |
| priorityDate |
2003-03-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |