http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2019187984-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_a2973a1bdaf87d5184fb1e81ebe5d061 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G2-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G2-10 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G2-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G2-10 |
| filingDate | 2019-03-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_398d0adab68a21b8ceb7933cd871d825 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_146af0fb171148d82662d6630cf059d1 |
| publicationDate | 2019-10-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | WO-2019187984-A1 |
| titleOfInvention | Method for producing polyacetal copolymer |
| abstract | The purpose of the present invention is to provide a method for producing a polyacetal copolymer, in which any disturbances in mass production less affect the polymerization. The method is for producing a polyacetal copolymer from trioxane as a main monomer (a) and a comonomer (b) copolymerizable therewith, and comprises using a polymerization catalyst (c) obtained by mixing a heteropolyacid (B) represented by general formula (1) with a heteropolyacid salt (A) represented by general formula (2) in a mass ratio of 10≥(A)/(B)≥0.2. Hm[M1 x·M2 yOz]·nH2O (1) M3 m[M1 x·M2 yOz]·nH2O (2) [In formulae (1) and (2), M1 represents one or two central elements selected from between P and Si, M2 represents one or more coordination elements selected from among W, Mo, and V, M3 represents an alkali metal, x is an integer of 1-10, y is an integer of 6-40, z is an integer of 10-100, m is an integer of 1 or larger, and n is an integer of 0-50.] |
| priorityDate | 2018-03-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
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