http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2009522389-A
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F222-102 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F2-44 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F220-06 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F20-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F2-44 |
| filingDate | 2006-12-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2009-06-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-2009522389-A |
| titleOfInvention | Production of water-absorbing resin in the presence of particulate additives |
| abstract | The present invention relates to a process for producing a water-absorbent resin by polymerizing in a reactor a reaction mixture comprising at least one hydrophilic monomer and optionally at least one cross-linking agent, wherein the reaction mixture contains fine particles. At least one first portion of the additive in the form of a mixture, after which the reaction mixture achieves a residence time of 40% of the total residence time in the reactor and the reaction mixture is completely When a residence time of 45% or more of the residence time is achieved, at least one second part of the particulate additive is incorporated, in which case the additive comprises a water absorbent resin powder, a filler and its Selected from the mixture, the total solids content of the monomer and additive is 30-60% by weight, the amount of additive is 5-50% by weight, based on the monomer, and the additive The mass ratio of the first portion and second portion, 10: 1 to 1: 5. The resin powder is a returned fine material, for example. The residual monomer content, in particular the residual crosslinker content as well as the extractable content of the water-absorbing resin, are reduced by the described mode of addition. A high content of additives can be mixed without deteriorating the properties of the water-absorbing resin obtained. The additive produces a sufficiently firm bond with the resin and therefore does not generate excessive dust formation during mechanical loading. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-7063634-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2018119142-A |
| priorityDate | 2005-12-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 146.