EP 0000524 B1 19820922 - PROCESS OF RECOVERING POLYMERIC BEADS FROM AN AQUEOUS SLURRY THEREOF
Title (en)
PROCESS OF RECOVERING POLYMERIC BEADS FROM AN AQUEOUS SLURRY THEREOF
Publication
Application
Priority
AU PD090377 A 19770719
Abstract (en)
[origin: EP0000524A1] Process of recovering polymeric beads from an aqueous slurry thereof, containing a poly(vinyl alcohol) dispersion stabiliser, by a physical separation such as filtration; the process can be seriously impeded by blinding of the filter bed, reducing throughput rates to an intolerably low level. <??>In order to achieve an efficient dewatering, an insoluble organic destabiliser is formed "in situ" in the slurry from a soluble parent compound comprising solubilising ionisable groups. The slurry may then be filtered at a temperature not lower than 50 DEG C to yield a soft cake of polymer beads, essentially free of poly(vinyl alcohol) dispersion stabiliser.
IPC 1-7
IPC 8 full level
C08G 63/89 (2006.01); C08J 3/16 (2006.01); C08F 6/00 (2006.01)
CPC (source: EP US)
C08G 63/89 (2013.01 - EP US); C08J 3/16 (2013.01 - EP US)
Designated contracting state (EPC)
BE CH DE FR GB NL SE
DOCDB simple family (publication)
EP 0000524 A1 19790207; EP 0000524 B1 19820922; AR 221702 A1 19810313; AT 369763 B 19830125; AT A510178 A 19820615; BR 7804583 A 19790403; CA 1094701 A 19810127; DE 2862039 D1 19821104; DK 323778 A 19790120; ES 471865 A1 19790201; FI 63426 B 19830228; FI 63426 C 19830610; FI 782268 A 19790120; IE 47018 B1 19831130; IE 781335 L 19790119; IT 1097865 B 19850831; IT 7825835 A0 19780718; JP S5448882 A 19790417; MX 150093 A 19840315; NO 149816 B 19840319; NO 149816 C 19840627; NO 782479 L 19790122; NZ 187768 A 19801114; PT 68310 A 19780801; US 4154923 A 19790515; ZA 784011 B 19800227
DOCDB simple family (application)
EP 78100403 A 19780714; AR 27293278 A 19780712; AT 510178 A 19780714; BR 7804583 A 19780717; CA 307411 A 19780714; DE 2862039 T 19780714; DK 323778 A 19780719; ES 471865 A 19780719; FI 782268 A 19780718; IE 133578 A 19780703; IT 2583578 A 19780718; JP 8721878 A 19780719; MX 17420478 A 19780717; NO 782479 A 19780718; NZ 18776878 A 19780703; PT 6831078 A 19780717; US 92205078 A 19780705; ZA 784011 A 19780714