| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_7f9af914ed2fb00cd4f1b8b1a28964e4 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B2103-308
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L2205-05
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B2103-408 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F283-01
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F290-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F290-061
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F290-14
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F290-142
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F222-102
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F222-1006
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B24-2641
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B24-2647
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G65-3322
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F220-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B24-32
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L71-02 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F283-01
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F290-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F290-14
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B24-26
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B24-32
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L71-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G65-332
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F220-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F222-10 |
| filingDate |
1998-06-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_188cd4c3d922bf69437018f7efa97ff1
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1b07fff8a425093cba0a2e6c6bf86e81
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_eb431b1d5cdbe64dce39fb16f88ebed1 |
| publicationDate |
2002-10-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
EP-1247824-A2 |
| titleOfInvention |
Process for producing a polycarboxylic acid as an effective compound for a cement admixture |
| abstract |
Production of a polycarboxylic acid, comprises copolymerizing (A) a specified polyalkylene glycol (meth)acrylate with (B) a specified (meth)acrylic acid monomer. (A) is obtained by esterifying a specified amount of a specified polyalkylene glycol with a specified amount of (B). Production of a polycarboxylic acid, comprises copolymerizing: (A) a polyalkylene glycol (meth)acrylate of formula (I); with (B) a (meth)acrylic acid monomer of formula (II). The polyalkylene glycol (meth)acrylate is obtained by charging polyalkylene glycol of formula (III) and the (meth)acrylic acid monomer of formula (II) into a reactor, and performing an esterification reaction. The amounts of (II) and (III) used to produce (I) satisfy the following relation: 45 = {(a/n) 1/2>/b} X 100 = 160 a : parts by weight of polyalkylene glycol of formula (III); and b : parts by weight of (meth)acrylic acid monomer of formula (II). [Image] R 1>O : either an oxyalkylene group, or a mixture of oxyalkylene groups, in block or random order; R 2>1-22C alkyl, phenyl or alkyl phenyl; n : average molar number of oxyalkylene groups = 1-300; and R 3>H or Me. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-102060464-B |
| priorityDate |
1997-06-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |