EP 0000922 B1 19820623 - A PROCESS FOR PREPARING A NON-WOVEN FIBROUS WEB FROM FIBERS AND A LATEX, AND THE NON-WOVEN FIBROUS MATERIAL SO PREPARED
Title (en)
A PROCESS FOR PREPARING A NON-WOVEN FIBROUS WEB FROM FIBERS AND A LATEX, AND THE NON-WOVEN FIBROUS MATERIAL SO PREPARED
Publication
Application
Priority
US 82531977 A 19770817
Abstract (en)
[origin: US4178205A] A high strength, non-woven fibrous material is prepared by (a) mixing an aqueous slurry of a negatively charged, water-insoluble natural or synthetic fiber or blend of fibers with an amount up to the fiber charge reversal point of a structured particle latex having pH independent cationic charges bound at or near the particle surface to form an aqueous suspension, (b) draining water from the aqueous suspension to form a wet web (c) wet pressing the web and (d) drying the web by heating.
IPC 1-7
IPC 8 full level
D21H 17/34 (2006.01); D21H 17/44 (2006.01)
CPC (source: EP US)
D21H 17/44 (2013.01 - EP US)
Citation (examination)
Ullmann, Encyklopädie der Techn. Chem. (4th Edn.) Vol. 17, pages 583-585
Designated contracting state (EPC)
DE FR GB NL SE
DOCDB simple family (publication)
EP 0000922 A1 19790307; EP 0000922 B1 19820623; CA 1107919 A 19810901; DE 2861910 D1 19820812; JP S5434405 A 19790313; JP S638240 B2 19880222; US 4178205 A 19791211
DOCDB simple family (application)
EP 78100677 A 19780816; CA 308925 A 19780808; DE 2861910 T 19780816; JP 9743978 A 19780811; US 82531977 A 19770817