http://rdf.ncbi.nlm.nih.gov/pubchem/patent/TW-200932765-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_725176299cf4c0d7470e45275475dcb8 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J2300-14 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F2-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F20-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J3-245 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61L15-60 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08K5-42 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F6-008 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F265-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-40 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F220-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J5-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F2-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F2-44 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F8-00 |
| filingDate | 2008-11-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8d733e4847f613485567ddd0742b9d9c |
| publicationDate | 2009-08-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | TW-200932765-A |
| titleOfInvention | Water-absorbing polymer structures of improved colour stability |
| abstract | The present invention relates to a process for the production of water-absorbing polymer structures, comprising the process steps: (i) provision of an aqueous monomer solution containing a polymerizable, monoethylenically unsaturated monomer (α 1) carrying acid groups or a salt thereof, optionally a monoethylenically unsaturated monomer (α 2) which can be polymerized with the monomer (α 1), and optionally a crosslinking agent (α 3), (ii) free radical polymerization of the aqueous monomer solution to give a polymer gel, (iii) optionally comminution of the polymer gel, (iv) drying of the optionally comminuted polymer gel to give water-absorbing polymer structures, (v) optionally grinding and sieving of the water-absorbing polymer structures and (vi) surface post-crosslinking of the optionally ground and sieved water-absorbing polymer structures, wherein a reducing agent comprising a sulphonate, a salt of a sulphonate or a mixture of a sulphonate and a salt of a sulphonate is added to (I) the water-absorbing polymer structure after carrying out process step (iv), (II) the water-absorbing polymer structure after carrying out process step (v), (III) the water-absorbing polymer structure after carrying out process step (vi), (IV) the aqueous monomer solution before or while carrying out process step (ii), (V) the polymer gel after carrying out process step (ii), or (VI) the optionally comminuted polymer gel after carrying out process step (iii). The invention also relates to the water-absorbing polymer structures obtainable by this process, water-absorbing polymer structures, a composite, a process for the production of a composite, the composite obtainable by this process, chemical products, such as foams, shaped articles, fibres, foils, films, cables, sealing mate-rials, liquid-absorbing hygiene articles, carriers for plant and fungal growth-regulating agents, packaging materials, soil additives or building materials, and the use of water-absorbing polymer structures. |
| priorityDate | 2007-11-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
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