| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_03bf16117db5c83386a5c17f3b37b31c |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02W10-37
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02A40-80
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02W10-40
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P60-20 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F1-5236
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A01G33-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F1-5263
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F3-32 |
| classificationIPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K101-00 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C12M1-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A01G33-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K17-32
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F3-32
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F1-52
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C12N1-12
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K17-00 |
| filingDate |
1974-12-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1978-10-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_79b518d2b31df286681916d1b79424af
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_571e81b926f2e63e57b8190ab8b305f8
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ffd7ae9352ea7fd3d2edef07f751b308
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1a0acba054967277c3db1de42e17259f |
| publicationDate |
1978-10-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
CA-1040122-A |
| titleOfInvention |
Production of algal bio-polymers |
| abstract |
PRODUCTION OF ALGAL BIO-POLYMERS ABSTRACT OF THE DISCLOSURE Cultivation of algae to produce long chain polymers having flocculating properties is disclosed. Algae are cul-tivated in an aqueous nutrient medium until optimum culture densities are achieved and thereafter under conditions in which they become deficient in nitrogen thereby causing the cells to shift from a growth phase in which protein production predominates to a growth phase in which extracellular polymer production pre-dominates. An adequate supply of other nutrients as well as CO2 and light are maintained in the culture medium during the latter phase to insure that a growth limitation is caused solely by a deficiency in nitrogen. The algae produce high molecular weight polymers exhibiting strong flocculating activity. |
| priorityDate |
1973-12-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |