| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_e9e43d0f9b617aa7349928b701559df5 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D2323-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D2323-12
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J2327-16 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J9-28
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D67-0011
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D69-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D67-0027
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D67-0018
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D67-003
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D69-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D71-34 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D71-34
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D69-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D69-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J9-28
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D67-00 |
| filingDate |
1991-05-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5010565dc8637f3f32fdf9901c1b9d50
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_bd8f23fbcea7581c63a8304231d83f1a
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ed2222f92a20f3b6266752f72006e849
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5821f6d071bcef63e1c16808d1ee81cd |
| publicationDate |
1991-11-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
WO-9117204-A1 |
| titleOfInvention |
Polyvinylidene fluoride membrane |
| abstract |
A method of making a porous polymeric material by heating a mixture comprising polyvinylidene fluoride and a solvent system initially comprising a first component that is a latent solvent for polyvinylidene fluoride and a second component that is a non-solvent for polyvinylidene fluoride wherein, at elevated temperature, polyvinylidene fluoride dissolves in the solven system to provide an optically clear solution. The solution is then rapidly cooled so that non-equilibrium liquid-liquid phase separation takes place to form a continuous polymer rich phase and a continuous polymer lean phase with the two phases being intermingled in the form of bicontinuous matrix of large interfacial area, and cooling is continued until the polymer rich phase solidifies. The polymer lean phase is removed from the solid polymeric material. A porous material so prepared is characterised by a lacey or filamentous structure consisting of a plurality of polymer strands (1) connected together at a number of locations (2) spaced apart along each strand. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-1019238-A4
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2010022596-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-9312868-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8262778-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11714040-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0578210-A2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11530598-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10322375-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0578210-A3
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9868834-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0714561-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11461512-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-9322034-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8057574-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2006002469-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0714561-A4
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-110573842-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-1019238-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-110573842-B |
| priorityDate |
1990-05-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |