EP 0000687 B1 19810916 - PROCESS FOR THE PREPARATION OF A MICROPOROUS MEMBRANE TO BE USED IN FILTRATION PLANTS
Title (en)
PROCESS FOR THE PREPARATION OF A MICROPOROUS MEMBRANE TO BE USED IN FILTRATION PLANTS
Publication
Application
Priority
CH 876577 A 19770715
Abstract (en)
[origin: ES471714A1] A method for production of a micro-porous membrane for filtration plants, whereby finely distributed particles are mixed and aligned in a plastics material or a preliminary plastics material product and are insoluble therein, the particles are then dissolved out after reaching the final mould position said insoluble particles mixed into the plastics material or preliminary plastics material product being aligned in a liquid state in the pores of a coarse pored support membrane at right angles to the membrane surface.
IPC 1-7
IPC 8 full level
B01D 67/00 (2006.01); B01D 69/02 (2006.01); C08J 5/18 (2006.01); C08J 9/26 (2006.01)
CPC (source: EP US)
B01D 67/003 (2013.01 - EP US); C08J 9/26 (2013.01 - EP US)
Designated contracting state (EPC)
BE DE FR GB LU NL SE
DOCDB simple family (publication)
EP 0000687 A1 19790207; EP 0000687 B1 19810916; AU 3754678 A 19800103; CA 1107922 A 19810901; CH 625966 A5 19811030; DE 2861072 D1 19811203; DK 293578 A 19790116; ES 471714 A1 19790201; FI 782208 A 19790116; GR 64587 B 19800418; IL 55011 A0 19780831; IL 55011 A 19810520; IT 1097184 B 19850826; IT 7825737 A0 19780714; JP S5420970 A 19790216; NO 782448 L 19790116; PT 68212 A 19780701; US 4177228 A 19791204; ZA 783619 B 19790627
DOCDB simple family (application)
EP 78810003 A 19780620; AU 3754678 A 19780628; CA 306310 A 19780627; CH 876577 A 19770715; DE 2861072 T 19780620; DK 293578 A 19780629; ES 471714 A 19780714; FI 782208 A 19780710; GR 780156520 A 19780614; IL 5501178 A 19780626; IT 2573778 A 19780714; JP 8599478 A 19780714; NO 782448 A 19780714; PT 6821278 A 19780626; US 91858478 A 19780623; ZA 783619 A 19780623