http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-2346922-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_f26ef37b090e0db41ba60eb7a48d7180 http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_e395994dabdd87116b9601872cc2317d |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-912 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-91 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-06 |
| filingDate | 2008-10-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d152501d7ab41b669e38454c32cb8cce http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f80d889bc40744e09a3eb2b8f46a266f http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d3e8a03ac00728efd71166e501bbfe35 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0fb180127722b94232ab8fee00e5124c http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f45c85459f6a64986ef6a81038790638 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7b0e62f1e5879b3829170b6e5143bd59 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_850285062f08c154563974ee57219158 |
| publicationDate | 2011-07-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | EP-2346922-A1 |
| titleOfInvention | Process for controlled degradation of polyhydroxyalkanoates and products obtainable therefrom |
| abstract | The present invention relates to a process for producing polyhydroxyalkanoate oligomers and/or polymers of reduced molecular weight, which comprises reacting at least one polyhydroxyalkanoate (PHA) with at least one carbonate salt at a temperature of from 50°C to 300°C, preferably from 120°C to 200°C. The above reaction allows a controlled degradation of the PHA chains which yields oligomers and/or polymers having a controlled molecular weight, which can be modulated in view of the specific application for which the oligomers and/or polymers are intended. Moreover, during the reaction carbon dioxide evolves which produces a foamed material which can be easily processed on an industrial scale. Additionally, the above oligomers and/or polymers, having an end-group bearing a double bond C=C, particularly a crotonate end-group for PHB, can be subjected to subsequent modifications to obtain a wide variety of functional end-groups, for instance carboxyl, carboxylate, hydroxyl, dihydroxyl, oxirane ring, halogen atom. Moreover, the low molecular weight PHAs may be used in the area of controlled delivery systems in agro-chemistry, in the cosmetic industry, in medicine in the form of nano- or microspheres, in household products and in coating systems. |
| priorityDate | 2008-10-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 76.