http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H01240541-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_14b02369b953bf4ebd31190c8cb63473 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J9-28 |
| filingDate | 1988-03-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ac22e5e96a93a628bb05a1c56b1ca2cc http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_298e26282986a964565f9b241d2021b0 |
| publicationDate | 1989-09-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-H01240541-A |
| titleOfInvention | Production of porous form |
| abstract | PURPOSE: To obtain a porous form with uniform, fine open-cell structure, suitable for removing microorganisms etc., by reaction of a mixed solution comprising an aqueous PVA solution, a crosslinking agent and a catalyst at specified temperatures followed by further reaction by adding both said crosslinking agent and catalyst. n CONSTITUTION: Firstly, an aqueous solution of completely saponified PVA or at least one kind of partially saponified PVA (derivative) (pref. with a mean polymerization degree of 300-2,000) is incorporated with a crosslinking agent (pref. an aldehyde) and a catalyst (pref., an acid). Second, the resultant mixed solution is put to primary reaction at specified temperatures (pref. 40-100°C) followed by adding both said crosslinking agent and catalyst to the system and carrying out secondary reaction at the above-mentioned specified temperatures, thus obtaining the objective porous form. For said mixed solution, the PVA concentration is pref. 10-30wt./vol.%. n COPYRIGHT: (C)1989,JPO&Japio |
| priorityDate | 1988-03-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
| Predicate | Subject |
|---|---|
| isDiscussedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID458392901 |
Total number of triples: 12.