Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
FRANCOIS CHARLES BILLON
Poulenc Freres SA
Original Assignee
FRANCOIS CHARLES BILLON
Poulenc Freres SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by FRANCOIS CHARLES BILLON, Poulenc Freres SAfiledCriticalFRANCOIS CHARLES BILLON
Application grantedgrantedCritical
Publication of FR420319ApublicationCriticalpatent/FR420319A/fr
B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
B01D—SEPARATION
B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
B01D69/10—Supported membranes; Membrane supports
B01D69/107—Organic support material
B01D69/1071—Woven, non-woven or net mesh
Landscapes
Chemical & Material Sciences
(AREA)
Chemical Kinetics & Catalysis
(AREA)
FR420319A1909-11-201909-11-20Perfectionnements aux filtres de collodion
ExpiredFR420319A
(fr)