| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_7f9af914ed2fb00cd4f1b8b1a28964e4 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B2103-408
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B2103-0059 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B24-2647 |
| classificationIPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B103-40 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B24-32
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B24-26
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G65-332
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C69-54 |
| filingDate |
1999-09-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_cf7604b6e3f2d4a9228f9b42e2b4cafd
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_188cd4c3d922bf69437018f7efa97ff1 |
| publicationDate |
2000-06-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
JP-2000159883-A |
| titleOfInvention |
Method for producing raw material monomer for cement dispersant |
| abstract |
(57) [Summary] [Problem] Di (meth) in acid-catalyzed esterification reaction Provided is a method for producing an alkoxypolyalkylene glycol mono (meth) acrylic acid used as a raw material monomer for a cement dispersant having excellent cement dispersing ability by suppressing the formation of an acrylate ester. SOLUTION: In the presence of an acid catalyst, R 1 O (E) an esterification reaction between an alkoxypolyalkylene glycol represented by (R 2 O) n H and (meth) acrylic acid, and the amount of the acid catalyst used is the total of the alkoxypolyalkylene glycol and (meth) acrylic acid. A method for producing an alkoxypolyalkylene glycol mono (meth) acrylic acid-based monomer for a cement dispersant, which is 0.4 meq / g or less based on the charged amount. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-101169740-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7030282-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6454850-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2006117946-A |
| priorityDate |
1998-09-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |