http://rdf.ncbi.nlm.nih.gov/pubchem/patent/ES-417691-A1

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filingDate 1973-08-08-04:00^^<http://www.w3.org/2001/XMLSchema#date>
publicationDate 1976-10-01-04:00^^<http://www.w3.org/2001/XMLSchema#date>
publicationNumber ES-417691-A1
titleOfInvention IMPROVEMENTS INTRODUCED IN THE MANUFACTURE OF ULTRAFILTRATION MEMBRANES.
abstract Improvements introduced in the manufacture of ultrafiltration membranes with a pore size incapable of rejecting solutes that exert substantial osmotic pressure, characterized in that the membranes comprise an organic polymeric film and a sufficient amount of particulate matter, insoluble in water, impermeable, inert and finely divided, distributed within the film to increase the flow of the membrane. (Machine-translation by Google Translate, not legally binding)
priorityDate 1972-08-09-04:00^^<http://www.w3.org/2001/XMLSchema#date>
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Total number of triples: 27.