| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_bbd1d44888f5b41142d83de455096387 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D2325-022
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D2325-026 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D71-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D71-34
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D69-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D67-0011
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D67-0016
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D67-0013 |
| filingDate |
2020-04-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e45fdd9d7e2cd717ff96a634955a80da
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_534547e8c4c1adbffd54bf1bf256fb31
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_71b8a0478c547d3608efa7e0d243856a
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_73d03f71cf71bce7950f225b787576a5 |
| publicationDate |
2022-05-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
SA-120410571-B1 |
| titleOfInvention |
Method for making asymmetric polyvinylidene difluoride film |
| abstract |
The present invention relates to polyvinyli difluoride (PVDF) films prepared from a molding solution including kappa-carrageenan (kCg) of a biopolymer as an additive showing improved properties and structure. The resulting asymmetric structure has a thin layer on the upper surface, a porous sublayer with reduced volume of total void area and increased porosity, and a spongy layer below the sublayer. This results in an increased hydrophilic nature, and provides improved dewatering, membrane porosity, and water permeability - all of these important properties making the membrane suitable for a wide range of applications. Figure 1 (a) |
| priorityDate |
2019-04-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |