http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-S6448821-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_630b360599ea5cf4b5bcbc0c6c0a3e2d |
| classificationIPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C12R1-05 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A01N25-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C12P7-62 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61L17-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C12N1-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-40 |
| filingDate | 1987-08-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a032a0861185b619731329a6a6832e21 |
| publicationDate | 1989-02-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-S6448821-A |
| titleOfInvention | Polyester copolymer and its production |
| abstract | PURPOSE:To obtain the title copolymer of excellent impact resistance, by multiplying microorganisms having an ability of producing poly-3-hydroxybutyrate in the former stage and multiplying them in the presence of a specified compound under culture conditions of limited N or P in the latter stage. CONSTITUTION:Microorganisms having an ability of producing poly-3- hydroxybutyrate (e.g., Alcaligenes eutorophus) are multiplied in the former stage under culture conditions of a pH of 6-10 and 20-40 deg.C and multiplied in the presence of a compound of the formula (wherein X is OH or a halogen, n is 1-4, and Y is H or mono- to tetra-valent metal atom), e.g., 4- hydroxybutyric acid, to allow the bacteria to form and accumulate poly-3- hydroxybutyrate in their cells. The cells are recovered, and washed and dried, and a poor solvent is added to the cells to obtain the title copolymer comprising 97-40mol.% 3-hydroxybutyrate units and 3-60mol.% 4-hydroxybutyrate units and having an intrinsic viscosity (in chloroform at 30 deg.C) of 0.4-10.0dl/g. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-20230097008-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7943351-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2020230807-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2004065609-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5516565-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5228282-A |
| priorityDate | 1987-08-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 29.