| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_7ef01e33058cf740cf2197991be97af1 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L101-16
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-80 |
| filingDate |
1999-10-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_05c3babfef994d17f6113cafc7669952
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_dcc373aaadec194c31b01432a5db4215
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d6d2265a28dda685c2249359aa7e91e0
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8a3009bc5e149cc9aa70132fc9eb9ce8
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5e617e14c15db4b952160fc777a74aee
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_747f0f88b77e6ccec0135dda4d4d48a0
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7faad4c63320cd9ae7d8459726bb46c0
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_13209c19552c8551847b820c3c1fd631
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1e9325454be207f4f10056b24346c9f5
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b6b91791e9aed5917903717f639018bc
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_fd7840535e7caae78d99acb7a5b1102f
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_75fe3aaccf0dd64de4c51ed8ee491d71 |
| publicationDate |
2001-05-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
JP-2001122954-A |
| titleOfInvention |
Method for producing aliphatic polyester |
| abstract |
(57) [Summary] [PROBLEMS] To easily produce an aliphatic polyester having a high molecular weight as a substitute for a general-purpose resin requiring toughness with 1) high volume efficiency and 2) using a volatile catalyst. 3) Produces high-molecular-weight aliphatic polyesters that are as safe as aliphatic polyesters obtained by a non-catalytic reaction with little catalyst residue, and 3) deviation of flowing gas and prepolymer in solid-state polymerization equipment. The present invention provides a method for safely and stably producing a uniform quality aliphatic polyester in various reaction types without causing fluidization of a solid phase such as the above. SOLUTION: The weight average molecular weight is 2,000 to 100,0. A crystallized aliphatic polyester prepolymer containing at least 50% of aliphatic hydroxycarboxylic acid units having a molecular weight of 00 is obtained by solid-state polymerization of aliphatic polyester containing at least 50% of aliphatic hydroxycarboxylic acid units in the presence of a catalyst under a flowing gas. Manufacturing method. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2005298605-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2003026790-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-4612239-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-4596810-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6761970-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2007058111-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2014515423-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2011002004-A1 |
| priorityDate |
1999-10-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |