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1. WO2022075981 - FLUID-WICKING MEMBRANES

Publication Number WO/2022/075981
Publication Date 14.04.2022
International Application No. PCT/US2020/054523
International Filing Date 07.10.2020
IPC
B01D 69/12 2006.1
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
69Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
12Composite membranes; Ultra-thin membranes
B01D 69/10 2006.1
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
69Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
10Supported membranes; Membrane supports
B01D 71/02 2006.1
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
71Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
02Inorganic material
B01D 71/06 2006.1
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
71Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
06Organic material
B01D 67/00 2006.1
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
67Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
G01N 33/552 2006.1
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
33Investigating or analysing materials by specific methods not covered by groups G01N1/-G01N31/131
48Biological material, e.g. blood, urine; Haemocytometers
50Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing
53Immunoassay; Biospecific binding assay; Materials therefor
543with an insoluble carrier for immobilising immunochemicals
551the carrier being inorganic
552Glass or silica
CPC
B01D 67/00
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
67Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
B01D 69/10
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
69Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
10Supported membranes; Membrane supports
B01D 69/12
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
69Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
12Composite membranes; Ultra-thin membranes
B01D 71/02
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
71Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
02Inorganic material
B01D 71/06
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
71Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
06Organic material
G01N 33/552
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
33Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
48Biological material, e.g. blood, urine
50Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing
53Immunoassay; Biospecific binding assay; Materials therefor
543with an insoluble carrier for immobilising immunochemicals
551the carrier being inorganic
552Glass or silica
Applicants
  • HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. [US]/[US]
Inventors
  • MAKAU, Fredrick, Muya
  • WEISMAN, Adam, C.
  • KNIGHT, Douglas
  • VAIDYANATHAN, Rajasekar
  • JACQUES, Alan
Agents
  • WOODWORTH, Jeffrey, C.
  • OAKESON, Gary, P.
Priority Data
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) FLUID-WICKING MEMBRANES
(FR) MEMBRANES À EFFET DE MÈCHE DE FLUIDE
Abstract
(EN) The present disclosure describes fluid-wicking membranes, methods of making fluid-wicking membranes, and flow assay membranes. In one example, a fluid-wicking membrane can include a substrate and a porous coating layer over the substrate. The porous coating layer can include silica particles bound together by a polymeric binder. The silica particles can have an average particle size from greater than 1 pm to 50 pm. The porous coating layer can also include a surface-activating agent activating surfaces of the silica particles. The surface-activating agent can include aluminum chloride hydrate, a trivalent metal oxide, a tetravalent metal oxide, or a combination thereof.
(FR) La présente invention concerne des membranes à effet de mèche de fluide, des procédés de fabrication de membranes à effet de mèche de fluide, et des membranes de dosage d'écoulement. Dans un exemple, une membrane à effet de mèche de fluide peut comprendre un substrat et une couche de revêtement poreuse sur le substrat. La couche de revêtement poreuse peut comprendre des particules de silice liées ensemble par un liant polymère. Les particules de silice peuvent avoir une taille moyenne de particule de plus de 1 pm à 50 pm. La couche de revêtement poreuse peut également comprendre un agent d'activation de surface activant des surfaces des particules de silice. L'agent d'activation de surface peut comprendre un hydrate de chlorure d'aluminium, un oxyde métallique trivalent, un oxyde métallique tétravalent, ou une combinaison de ceux-ci.
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