WO2000058415A1 - Vorrichtung und verfahren zum verlustfreien transport von flüssigkeiten - Google Patents
Vorrichtung und verfahren zum verlustfreien transport von flüssigkeiten Download PDFInfo
- Publication number
- WO2000058415A1 WO2000058415A1 PCT/EP2000/002426 EP0002426W WO0058415A1 WO 2000058415 A1 WO2000058415 A1 WO 2000058415A1 EP 0002426 W EP0002426 W EP 0002426W WO 0058415 A1 WO0058415 A1 WO 0058415A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- liquid
- liquids
- elevations
- hydrophilic
- transport
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D11/00—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of plastics material
- B65D11/20—Details of walls made of plastics material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L3/00—Containers or dishes for laboratory use, e.g. laboratory glassware; Droppers
- B01L3/02—Burettes; Pipettes
- B01L3/0275—Interchangeable or disposable dispensing tips
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K3/00—Materials not provided for elsewhere
- C09K3/18—Materials not provided for elsewhere for application to surfaces to minimize adherence of ice, mist or water thereto; Thawing or antifreeze materials for application to surfaces
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15D—FLUID DYNAMICS, i.e. METHODS OR MEANS FOR INFLUENCING THE FLOW OF GASES OR LIQUIDS
- F15D1/00—Influencing flow of fluids
- F15D1/02—Influencing flow of fluids in pipes or conduits
- F15D1/06—Influencing flow of fluids in pipes or conduits by influencing the boundary layer
- F15D1/065—Whereby an element is dispersed in a pipe over the whole length or whereby several elements are regularly distributed in a pipe
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2245/00—Coatings; Surface treatments
- F28F2245/02—Coatings; Surface treatments hydrophilic
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2245/00—Coatings; Surface treatments
- F28F2245/04—Coatings; Surface treatments hydrophobic
Definitions
- the present invention relates to an apparatus and a method for the lossless transport or emptying of hydrophilic liquids.
- Examples of this are surfaces made of the extremely hydrophobic Teflon or the extremely hydrophilic "no-drop coatings" on which water can run off without dripping.
- the CH-PS-26 82 58 describes water-repellent surfaces that have a contact angle with water over 120 °. You will be won by applying powders such as kaolin, talc, clay or silica gel on a base, the powder being previously hydrophobicized by organic silicon compounds. It is applied together with curable resins or from solutions with organic solvents.
- powders such as kaolin, talc, clay or silica gel
- US Pat. No. 3,354,022 describes a water-repellent surface with elevations and depressions and an air content of at least 60%, in which a surface contact angle of more than 90 ° is established.
- JP-A-62-191447 describes a method to increase the water repellency of a surface. For this purpose, a plasma polymer film is applied, this is roughened by etching and a second plasma polymer film is applied.
- JP-A-3-174279 (abstract) describes a method for producing matt, decorative surfaces on sheets or foils. They are produced by lacquers which are hardened by means of ionizing radiation and in which patterns are embossed in an unspecified manner. They are then fully cured by further radiation.
- WO-A-96/04123 describes self-cleaning surfaces of objects which have an artificial surface structure of elevations and depressions, the distance between the elevations being in the range from 5 to 200 ⁇ m and the height of the elevations being in the range from 5 to 100 ⁇ m .
- the object of the present invention is to provide a device with which hydrophilic liquids can be transported, stored and emptied without loss.
- the task is solved by a Device with the features of claim 1.
- the devices according to the invention for lossless transport or emptying of hydrophilic liquids are characterized in that the device has elevations and depressions on the side facing the liquid, the distance between the elevations being in the range from 0.1 to 200 ⁇ m and the height of the elevations is in the range from 0.1 to 100 ⁇ m and at least the elevations are hydrophobic.
- the devices according to the invention are typically curved on the side facing the liquid, so that this curved surface delimits an internal volume.
- the devices are preferably curved concavely.
- the devices according to the invention can be pipes or troughs through which the hydrophilic liquid is transported in order to get from a point A to a point B. It can also be a spoon or a trowel with which a hydrophilic liquid can be removed from a supply and transported to another location. In this case it is particularly advantageous if all sides of the device that come into contact with the liquid have the elevations and depressions according to the invention.
- the invention also relates to a bowl, a tank or a canister in which liquids can be stored. These can be emptied by pouring out, with no residues of the liquid adhering to the devices due to the special surface structure.
- the device according to the invention can also be a funnel which is used during the transfer of a liquid. All these devices have the advantage that the liquids do not adhere. ben, so that on the one hand losses are avoided and on the other hand cleaning steps are omitted, so that the devices according to the invention can be better used for the changing transport of various liquids.
- Suitable hydrophilic liquids are, for example, water, aqueous solutions, aqueous suspensions or dispersions. Viscous liquids that are difficult to transport in conventional devices due to their adherence are particularly suitable.
- the devices according to the invention can be used for the transport, storage, application and metering of liquids, in particular of small amounts of liquid.
- the devices according to the invention preferably have a contact angle of over 150 ° with the liquid.
- Devices of this type can be produced either by creating the surface structures already during manufacture, for example from hydrophobic polymers, or by creating them subsequently, either by subsequent embossing or etching or by gluing on a powder from the hydrophobic polymers. Finally, it is possible to create such surfaces of devices by subsequently making water-repellent to previously manufactured devices with the desired structures.
- One possibility for subsequent, durable waterproofing is the subsequent silanization of previously produced surfaces with the desired structures. Silanization can take place on all materials that are naturally hydrophilic but are able to react with the reactive groups of the silanes, so that the surface ultimately consists of the hydrophobic residues of the silanes.
- the objects can be made from the outset in forms that have the negative of the desired surface structure. It is also possible to apply the hydrophobic polymers in the form of solutions and / or dispersions which, when they dry and set, lead to the desired surface structures. Structures of this type arise, for example, from self-organizing polymers or under conditions which are known in principle from the production of matt lacquer surfaces.
- embossing can be done, for example, by heated or heatable stamps.
- the etching can be carried out using the known chemical etching means or by physical methods such as ion etching with oxygen or other irradiations, which lead to a roughening of the surface and a surface structure that can be used according to the invention.
- the devices according to the invention can be used in many areas.
- the devices can be used as pipette tips for dosing small amounts of liquid in biotechnology. be set so that small amounts of liquid of different composition can be pipetted without changing the pipette tip.
- the devices according to the invention could also be used to measure amounts of precipitation. Due to the special surface structure of the device, liquids from the air do not adhere, for example in the case of fog, so that a more precise measurement of corresponding amounts of precipitation is possible.
- the device according to the invention is also suitable for transporting highly viscous, hydrophilic adhesive preparations or precursors thereof through pipes as part of the manufacturing process.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Combustion & Propulsion (AREA)
- General Engineering & Computer Science (AREA)
- Fluid Mechanics (AREA)
- Physics & Mathematics (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Clinical Laboratory Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU38132/00A AU3813200A (en) | 1999-03-25 | 2000-03-18 | Method and device for the loss-free transport of liquids |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19913601A DE19913601C1 (de) | 1999-03-25 | 1999-03-25 | Vorrichtung und Verfahren zum verlustfreien Transport von Flüssigkeiten |
DE19913601.7 | 1999-03-25 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2000058415A1 true WO2000058415A1 (de) | 2000-10-05 |
Family
ID=7902401
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2000/002426 WO2000058415A1 (de) | 1999-03-25 | 2000-03-18 | Vorrichtung und verfahren zum verlustfreien transport von flüssigkeiten |
Country Status (3)
Country | Link |
---|---|
AU (1) | AU3813200A (de) |
DE (1) | DE19913601C1 (de) |
WO (1) | WO2000058415A1 (de) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2829406A1 (fr) * | 2001-09-12 | 2003-03-14 | Commissariat Energie Atomique | Surface autonettoyante et/ou antisalissure et/ou anticondensation |
JP2010515312A (ja) * | 2007-01-03 | 2010-05-06 | ヴェーデクス・アクティーセルスカプ | 補聴器の構成要素および補聴器の構成要素を作製する方法 |
US8129195B2 (en) | 2007-07-03 | 2012-03-06 | Roche Diagnostics Operations, Inc. | Method for the production of an analytical element |
US8163560B2 (en) | 2003-12-04 | 2012-04-24 | Roche Diagnostics Operations, Inc. | Coated test elements |
US8295522B2 (en) | 2006-08-31 | 2012-10-23 | Widex A/S | Filter for a hearing aid and a hearing aid |
US8629070B2 (en) * | 2001-04-12 | 2014-01-14 | Evonik Degussa Gmbh | Flat textile structures with self-cleaning and water-repellent surface |
US8828333B2 (en) | 2007-07-03 | 2014-09-09 | Roche Diagnotics Operations, Inc. | Method for the production of a microfluidic system on a polymer surface |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19926888A1 (de) * | 1999-06-12 | 2000-12-14 | Bayer Ag | Vorrichtung und Verfahren zum Dosieren kleiner Flüssigkeitenmengen |
DE20006010U1 (de) * | 2000-03-31 | 2000-07-13 | CREAVIS Gesellschaft für Technologie und Innovation mbH, 45772 Marl | Behälter mit strukturierten flüssigkeitsabweisenden und flüssigkeitsbenetzenden Teilbereichen der inneren Oberfläche |
US20050036918A1 (en) * | 2000-12-18 | 2005-02-17 | Lange Frederick F. | Microchannels for efficient fluid transport |
DE10138037A1 (de) * | 2001-08-03 | 2003-02-20 | Creavis Tech & Innovation Gmbh | Pipettenspitzen mit teilweise strukturierten Oberflächen mit verbesserten Pipettiereigenschaften |
DE10336513A1 (de) * | 2003-08-08 | 2005-03-03 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Mikroinjektionseinrichtung und zugehöriges Herstellungsverfahren |
DE102007048460B4 (de) | 2007-10-10 | 2009-08-27 | Deutsches Zentrum für Luft- und Raumfahrt e.V. | Vorrichtung zur Gewinnung von Solarenergie |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3354022A (en) * | 1964-03-31 | 1967-11-21 | Du Pont | Water-repellant surface |
JPH02115292A (ja) * | 1988-10-24 | 1990-04-27 | Fujitsu Ltd | 水溶液容器の疎水化方法 |
JPH06116430A (ja) * | 1992-10-05 | 1994-04-26 | Matsushita Electric Ind Co Ltd | 撥水撥油性フィルムとその製造方法 |
JPH07166123A (ja) * | 1993-12-17 | 1995-06-27 | Hitachi Ltd | 撥水性被膜、その製法及び熱交換器 |
JPH07197017A (ja) * | 1993-12-28 | 1995-08-01 | Kao Corp | 撥水表面を有する固体およびその生成方法 |
WO1996004123A1 (de) * | 1994-07-29 | 1996-02-15 | Wilhelm Barthlott | Selbstreinigende oberflächen von gegenständen sowie verfahren zur herstellung derselben |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH268258A (fr) * | 1946-07-30 | 1950-08-16 | Rhone Poulenc Chemicals | Revêtement hydrofuge. |
-
1999
- 1999-03-25 DE DE19913601A patent/DE19913601C1/de not_active Expired - Lifetime
-
2000
- 2000-03-18 WO PCT/EP2000/002426 patent/WO2000058415A1/de not_active Application Discontinuation
- 2000-03-18 AU AU38132/00A patent/AU3813200A/en not_active Withdrawn
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3354022A (en) * | 1964-03-31 | 1967-11-21 | Du Pont | Water-repellant surface |
JPH02115292A (ja) * | 1988-10-24 | 1990-04-27 | Fujitsu Ltd | 水溶液容器の疎水化方法 |
JPH06116430A (ja) * | 1992-10-05 | 1994-04-26 | Matsushita Electric Ind Co Ltd | 撥水撥油性フィルムとその製造方法 |
JPH07166123A (ja) * | 1993-12-17 | 1995-06-27 | Hitachi Ltd | 撥水性被膜、その製法及び熱交換器 |
JPH07197017A (ja) * | 1993-12-28 | 1995-08-01 | Kao Corp | 撥水表面を有する固体およびその生成方法 |
WO1996004123A1 (de) * | 1994-07-29 | 1996-02-15 | Wilhelm Barthlott | Selbstreinigende oberflächen von gegenständen sowie verfahren zur herstellung derselben |
Non-Patent Citations (5)
Title |
---|
BARTHLOTT W NEINHUIS C: "Purity of the sacred lotus, or escape from contamination in biological surfaces", PLANTA, vol. 202, 1997, pages 1 - 8, XP002142787 * |
PATENT ABSTRACTS OF JAPAN vol. 014, no. 322 (C - 0739) 10 July 1990 (1990-07-10) * |
PATENT ABSTRACTS OF JAPAN vol. 018, no. 401 (C - 1231) 27 July 1994 (1994-07-27) * |
PATENT ABSTRACTS OF JAPAN vol. 1995, no. 09 31 October 1995 (1995-10-31) * |
PATENT ABSTRACTS OF JAPAN vol. 1995, no. 11 26 December 1995 (1995-12-26) * |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8629070B2 (en) * | 2001-04-12 | 2014-01-14 | Evonik Degussa Gmbh | Flat textile structures with self-cleaning and water-repellent surface |
FR2829406A1 (fr) * | 2001-09-12 | 2003-03-14 | Commissariat Energie Atomique | Surface autonettoyante et/ou antisalissure et/ou anticondensation |
WO2003022463A1 (fr) * | 2001-09-12 | 2003-03-20 | Commissariat A L'energie Atomique | Surface autonettoyante et/ou antisalissure et/ou anticondensation |
US8163560B2 (en) | 2003-12-04 | 2012-04-24 | Roche Diagnostics Operations, Inc. | Coated test elements |
US8295522B2 (en) | 2006-08-31 | 2012-10-23 | Widex A/S | Filter for a hearing aid and a hearing aid |
JP2010515312A (ja) * | 2007-01-03 | 2010-05-06 | ヴェーデクス・アクティーセルスカプ | 補聴器の構成要素および補聴器の構成要素を作製する方法 |
US8763238B2 (en) | 2007-01-03 | 2014-07-01 | Widex A/S | Method of manufacturing a component for a hearing aid |
US8129195B2 (en) | 2007-07-03 | 2012-03-06 | Roche Diagnostics Operations, Inc. | Method for the production of an analytical element |
US8828333B2 (en) | 2007-07-03 | 2014-09-09 | Roche Diagnotics Operations, Inc. | Method for the production of a microfluidic system on a polymer surface |
Also Published As
Publication number | Publication date |
---|---|
AU3813200A (en) | 2000-10-16 |
DE19913601C1 (de) | 2000-08-10 |
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