WO2002040625A1 - Composition nettoyante pour substrat a base de verre, substrat a base de verre, procede de traitement du substrat - Google Patents
Composition nettoyante pour substrat a base de verre, substrat a base de verre, procede de traitement du substrat Download PDFInfo
- Publication number
- WO2002040625A1 WO2002040625A1 PCT/FR2001/003573 FR0103573W WO0240625A1 WO 2002040625 A1 WO2002040625 A1 WO 2002040625A1 FR 0103573 W FR0103573 W FR 0103573W WO 0240625 A1 WO0240625 A1 WO 0240625A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- substrate
- glass
- powder
- contact
- particles
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
- C11D7/02—Inorganic compounds
- C11D7/20—Water-insoluble oxides
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/02—Inorganic compounds ; Elemental compounds
- C11D3/12—Water-insoluble compounds
- C11D3/1213—Oxides or hydroxides, e.g. Al2O3, TiO2, CaO or Ca(OH)2
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/02—Inorganic compounds ; Elemental compounds
- C11D3/12—Water-insoluble compounds
- C11D3/14—Fillers; Abrasives ; Abrasive compositions; Suspending or absorbing agents not provided for in one single group of C11D3/12; Specific features concerning abrasives, e.g. granulometry or mixtures
Definitions
- the present invention relates to the general field of products or compositions and methods for treating generally transparent glass-based substrates, with a view to obtaining good vision through the glass-based substrate, whatever the conditions under which the glass-based substrate is located or caused to be stressed.
- the present invention relates to a cleaning product or composition for improving vision through a glass-based substrate intended to be in contact with vapor mainly of water, as well as the glass-based substrate treated with said cleaning composition.
- the present invention also relates to any household appliance comprising an internal vision zone, equipped with a glass-based substrate treated according to the composition according to the invention, as well as a method for treating the surfaces of a substrate based of glass, intended to confer on said surface properties improving vision.
- the present invention also relates to a new use of a cleaning substance capable of being in contact with foodstuffs, as a product for treating the surfaces of a glass-based substrate.
- these various devices are provided, as a viewing area, with a surface or substrate based on transparent glass, which allows the user to have visual access inside the the appliance itself during cooking.
- These viewing areas are for example formed by portholes on fryers or pressure cookers, the portholes being generally mounted on and through the thickness of the cover.
- ovens notably steam ovens
- the vision zones are formed by the doors of the device, doors in which a glass surface is used for observation.
- the glasses used for these applications can be of different types and in particular borosilicates, or even soda-lime, whether they are toughened or not, and of planar or curved geometric shape. It is also possible to create viewing areas for these products based on specially treated plastic materials.
- the objects assigned to the invention therefore aim to remedy the various problems mentioned above and to propose a new use of a cleaning substance capable of being in contact with foodstuffs, to improve the vision properties of a substrate to be glass base intended to be in contact with vapor mainly formed by water.
- Another object of the invention is to provide a glass-based substrate which, after treatment with the cleaning product according to the invention, has improved wettability properties.
- Another object of the invention is to propose a new method for treating the surfaces of a glass-based substrate, which makes it possible to easily obtain an improvement in vision when the substrate is in contact with vapor mainly formed by water, without the substrate being scratched.
- Another object of the invention is to propose a new cleaning product capable of being in contact with foodstuffs and intended to ensure the treatment of a glass-based substrate, which is brought into contact with vapor mainly formed by water, said treatment having to make it possible to retain its vision properties on the surface and / or to improve them and / or to prevent their deterioration.
- Another object of the invention is to propose a new cleaning product which is easy to use.
- Another object of the invention is to propose a new cleaning product which provides a vision-improving effect which is durable over time.
- a cleaning substance capable of being in contact with foodstuffs and comprising a composition including a mineral powder, as a treatment product for improving vision through a substrate based on glass intended to be in contact with water vapor mainly formed by water.
- the objects assigned to the invention are achieved using a substrate based on translucent glass treated with a cleaning composition to improve the / Ision through said substrate, the latter being intended to be in contact with vapor mainly formed by water, said composition being capable of being in contact with foodstuffs and comprising a mineral polishing powder intended to be applied on the face (s) of the substrate in contact with the vapor in conjunction with a wet application means, said mineral powder being formed by particles consisting exclusively of mineral matter, in particular without organic core, such as rubber or synthetic resin, of an average size of between approximately 1 and 0.05 ⁇ m when the powder is applied and the particles are mechanically stressed against the face (s), said substrate having a wettability such as a drop of water with a mass of 0.9 grams deposited on the substrate has a spreading surface at least equal to 8.2 mm 2 (32.8 x 0.25 mm 2 ).
- the objects assigned to the invention are achieved using a method of surface treatment of a glass-based substrate intended to be in contact with vapor predominantly formed by water, said method being intended improving vision through said substrate, process in which the substrate is treated by application and mechanical action of a mineral polishing powder capable of being in contact with foodstuffs and formed by particles consisting exclusively of mineral matter, in particular without an organic core, such as rubber or synthetic resin, of an average size of between approximately 1 ⁇ m and
- the objects assigned to the invention are achieved using a cleaning composition to improve vision through a substrate based on translucent glass which is intended to be in contact with steam mainly formed by water, said composition being capable of being in contact with foodstuffs and comprising a mineral polishing powder intended to be applied to the face (s) of the substrate in contact with the vapor in conjunction with a wet application means, said mineral powder being formed by particles consisting exclusively of mineral matter, in particular without organic core, such as rubber or synthetic resin, of an average size of between substantially 1 and 0.05 ⁇ m when the powder is applied and the particles are mechanically stressed against the face (s).
- FIG. 3, 4 and 5 respectively illustrate the typical wettability curves obtained with untreated portholes, treated portholes (minimum effect) and treated portholes (maximum effect).
- a household appliance comprising a vision window disposed in the lid of the fryer, said window constituting the treated vision area of the household appliance.
- a vision window disposed in the lid of the fryer, said window constituting the treated vision area of the household appliance.
- Such an illustration is given purely by way of nonlimiting illustration, it being understood that the invention can be applicable to any type of household appliance comprising a vision zone allowing the user to monitor the progress of cooking.
- the invention can also be applied to devices other than household appliances, from the moment they bring into play a vision area formed by a glass-based substrate, comprising a face intended to be in contact with the vapor, mainly formed by water vapor.
- the invention will also apply in a preferential manner, but in no way limiting, to any type of glass capable of being used in applications in the household appliance field, whether it is borosilicate glass, soda-lime glass, toughened or not, the glasses or glass-based substrates used being of flat or curved shapes and also of various thicknesses.
- the invention may be applied, at least in the field of household appliances, to devices intended for frying (fryers), to pressure cookers, to bowls of steamers, to doors of steam ovens, or also to various cookers such as rice cookers.
- the cleaning composition (or cleaning product) according to the invention is capable of being in contact with foodstuffs, and that it responds consequently to the requirements of food requirements and prescribed by the French decree of October 27, 1975 and its modifications in 1997 and 1999, relating to the cleaning products of the material which can be in contact with foodstuffs (Official Journal of November 30, 1975 and Corrigendum to the Official Journal of February 5, 1976).
- the quality of vision through a glass-based substrate therefore changes directly as a function of the value of the angle ⁇ , the lower its value, the better the vision.
- the hypothesis put forward by the applicant therefore consisted in trying to restore, or even improve, the wettability of the surface of the glass-based substrate intended to come into contact with the vapor mainly formed by water, inside the appliance.
- the glasses or glass substrates intended for use in household appliances, and in particular in fryers generally comprise an unknown polluting layer (resulting for example from the manufacturing process, from the conditions of storage of the parts, or assembly and integration operations in the cover), opposing good spreading of the drops, the applicant sought to obtain a product having a mechanical action on this polluting layer.
- the applicant sought to obtain a mechanical action which does not generate the appearance of scratches on the glass, these scratches having both an unsightly appearance but also an appearance often harmful to vision.
- the applicant has been able to demonstrate that the properties of vision through a glass-based substrate were greatly improved when a composition comprising a mineral powder, intended to be used, was applied to the face of the glass-based substrate.
- a composition comprising a mineral powder, intended to be used, was applied to the face of the glass-based substrate.
- the average size of the particles of the mineral powder is less than 60 ⁇ m, and preferably less than 30 ⁇ m, after a possible disintegration during the mechanical application to the surface to be treated, this application then being capable of generate the disintegration of the particles, which then take their mechanically active average size, it being understood that in the inert state, that is to say of non-application, the particles may have a size greater than 60 ⁇ m.
- particles of a smaller average size and for example between 30 and 0.8 ⁇ m or better between 1 and 0.05 ⁇ m or even between 1 and 0.8 ⁇ m d on the one hand and between 0.6 and 0.05 ⁇ m on the other hand made it possible to obtain particularly interesting results in terms of wettability.
- the ideal particle size is located substantially in the range 0.05 ⁇ m - 1 ⁇ m, for which the wettability of the water drops is affected very positively without causing scratches, at least with the naked eye.
- the mineral powder according to the invention is particularly effective when the elementary particles composing it have specific geometric shapes, having numerous peaks and sharp edges.
- the cleaning composition in accordance with the invention therefore makes it possible to obtain a treatment of the anti-fog type or rather modifying the geometry of the drops forming the mist and improving the vision under the conditions referred to above, for a glass-based surface, it being understood that this product is suitable for being in contact with foodstuffs, as mentioned above.
- the mineral powder can be combined with various chemically neutral agents or compounds. However, certain compounds can be combined with mineral powder to give it interesting secondary actions, such as degreasing actions. Thus, the mineral powder can be combined with degreasing agents and / or other agents such as agents facilitating or promoting the evacuation or elimination of the composition and loose pollutant particles.
- the mineral powder will represent at least 50%, and for example preferably 65% of the total composition of the product.
- the composition will comprise at least and approximately 65% of mineral powder formed by alumina or corundum.
- the cleaning product in accordance with the invention may be in the form of a simple powder in the dry particulate state, the powder being applied in the wet state to the surface, by simple addition of water or by addition water indirectly through a sponge, cloth or cloth that can absorb water.
- the cleaning product according to the invention may also be in the form of a composition formed by the powder incorporated in a gel, a solution or a paste, the gel, the solution or the paste then forming the wet application medium in which the mineral powder is enclosed or integrated.
- the hardness of the particles making up the mineral powder must be such that it is not likely to alter the surface of the glass.
- the proportion, the average particle size of the powder in the composition may vary without giving rise to the appearance of scratches from the moment that the other elements of the composition are adapted accordingly, in particular the proportion of agents oily or degreaser. In other words, the larger the particle size, the higher the proportion of degreasing agents.
- the measurement method developed by the applicant consisted in measuring a measurable and reproducible physical parameter, which is a faithful image of the behavior of the glass in use corresponding to contact of the glass with vapor mainly formed by water.
- the chosen measurable physical parameter consisted in measuring the spreading surface of a drop of liquid of given volume (or mass) on the glass surface concerned.
- the measurement method therefore consisted, after depositing drops of water by successive additions of 0.25 grams (measured to the milligram or to the 1/1000 th of a milliliter), to measure the spreading surface of the drop on the treated glass surface (or the porthole) for a given quantity of liquid.
- 0.25 grams measured to the milligram or to the 1/1000 th of a milliliter
- the larger the measured spreading surface the smaller the angle ⁇ and the better the vision through the glass.
- Such a method therefore makes it possible to differentiate the glasses, treated or not according to the invention, which will allow good vision in use, from those which on the contrary will offer poor vision in use.
- the course of the so-called “wettability” test is as follows.
- the test consists of first cleaning the glass surface to be tested with, for example, a piece of hand towel of the type laboratory paper or cotton wool soaked beforehand with acetone rectapur (this quality must be absolutely used, because the industrial acetones contain impurities which would remain on the glass after evaporation).
- the cleaning is done by light circular movements, and ends with a cleaning step in which the paper is pulled completely towards the edge of the porthole, in order to prevent the acetone from evaporating in the center of the screen, risking to concentrate impurities.
- the quality of cleaning can be checked by simple visual observation of the window in grazing incidence or by transparency.
- the test continues by depositing a drop of water in the center of the surface to be tested by successive additions of approximately 0.25 grams (measurement carried out precisely as mentioned above). Any addition must be made without disturbing the already existing drop, that is to say that it is necessary to deposit and not to drop, on the top of the drop already spread, the additional water. In practical terms, the removal of the additional water (approximately 0.25 grams each time) is carried out using a needle or a pipette tip of small diameter, in fact allowing the droplets to be absorbed. additional by the drop already spread before they fall.
- the measurement of the spreading surface of the drop on the window is carried out after each successive addition of 0.25 grams, and after a period of fifteen seconds intended to allow the drop the time necessary to reach a stable level of spreading. .
- This measurement makes it possible to plot on a graph the mass of the drop of water on the abscissa, and the spreading surface of the drop of water on the ordinate.
- test was carried out using a measurement of the mass of water deposited on the glass surface concerned using an electronic balance previously tared to 10 "4 grams, and making it possible to support the window or the mass of glass.
- the test consisted in photographing with a digital camera the drop of water at the end of each successive addition. Beforehand, a millimeter paper is interposed between the scale pan and the porthole or the glass surface to be tested, the image processing then allowing the measurement of the surface of the drop.
- the test could have consisted in taking advantage of the transparency of the window to project the shadow of the drop onto a screen, in order to make it more easily measurable.
- the surrounding measurement atmosphere The laboratory air must be free of all pollution, in particular avoiding any storage or manipulation of solvents in the measurement room.
- the temperature of the part must be of the order of 20 to 30 ° C, so as to limit as much as possible the inter-facial variations at the level of the solid or the liquid.
- the humidity will vary between 50 and 100%, knowing that if the relative humidity is very high, adsorption of water on the surface of the window will be expected.
- the measurement water used The spreading measurements will be carried out using drops of distilled water using a conventional bi-distiller for example, the water intended for carrying out the measurements must be kept at sheltered from air, and in particular carbon dioxide.
- the beneficial effect provided by the invention was then demonstrated by measuring the spreading surfaces of water drops on the same glass-based substrate, in this case a fryer porthole.
- the measurements related to a series of substrates based on untreated glass or corresponding to conventional fryer portholes such as those found to date on the market.
- the results and experimental values are given in FIG. 3 and in Table 1, and have been noted as corresponding to the wettability of an untreated window, due to the poor vision which they provide.
- the minimum improving effect which can be obtained by the treatment and by the cleaning product according to the invention can be characterized by the graph illustrated in FIG. 4 and in Table 3.
- the graph in FIG. 6 therefore makes it possible to illustrate in a particularly clear manner the improving effect in terms of vision by the application of a mineral powder in accordance with the invention to the concerned face of a substrate or of a porthole. of glass, it being understood that the effect obtained, not illustrated by the various graphs, must be obtained without the appearance of scratches in the glass, the mineral powder used must also meet the requirements of alimentarity with regard to foodstuffs, as defined above in the body of the description.
- these glass substrates have undergone a treatment in accordance with the invention, they consequently have a wettability defined according to the wettability test described above, such as a drop of water deposited on the surface of the treated glass verifies the relationship Y> 32x + 4.
- a glass-based substrate treated with an anti-fog cleaning agent according to the invention will exhibit wettability such that a drop of water with a mass of 0.9 grams deposited on said substrate has a spreading surface. at least equal to 8.2 mm 2 (32.8 x 0.25 mm 2 ).
- a glass-based substrate treated according to the invention will have a wettability such that the spreading surface of a drop of water with a mass of 0.9 grams is between 8.2 mm 2 and 15.3 mm 2 on average.
- the wettability measurement technique used therefore proves to be simple to implement, while making it possible to clearly distinguish the wettability properties of glass-based portholes or substrates, depending on whether or not they have received the treatment. according to the invention. Furthermore, the results dispersions obtained are much lower than the variations obtained between the various windows.
- the method is a method of surface treatment of a glass-based substrate intended to be in contact with vapor predominantly formed by water, said method being intended to improve vision through said substrate, process in which the substrate is treated by application and mechanical action, for example of polishing, of a mineral powder capable of being in contact with foodstuffs and formed by particles consisting exclusively of mineral matter, in particular without organic core , such as rubber or synthetic resin, of a size less than 60 ⁇ m when they are mechanically stressed on the concerned face or faces of the substrate, said application being carried out using a wet application means , then in which the treated surface is rinsed.
- the application can be carried out using a wet application means formed by a sponge soaked in liquid and for example water.
- the treatment can be carried out by rubbing (polishing) the mineral powder, using the sponge, on the concerned face or faces of the substrate, the particles being able to disintegrate into elementary particles of size less than 60 ⁇ m, preferably less than 30 ⁇ m and even more preferably, between 1 and 0.05 ⁇ m or alternatively, between 1 and 0.8 ⁇ m and between 0.6 and 0.05 ⁇ m.
- the particles can also be of the order of 0.7 ⁇ m.
- the ideal particle size in terms of polishing efficiency (without scratching the glass) is located in the range 1 ⁇ m - 0.05 ⁇ m.
- Table 4 brings together various experimental data which show that a particle size of between substantially 1 and 0.05 ⁇ m makes it possible to obtain the best results simultaneously on the two criteria for assessing the result, namely the effect on vision and presence or not of scratches.
- the extreme values of this preferred range correspond respectively to a limit in terms of vision (very good results, as well as less apparent results, are obtained with a particle size of 0.05 ⁇ m), respectively of scratches (for 1 ⁇ m, we observes the beginning of scratches not visible to the eye, but visible with a suitable device).
- the very good results for a particle size of 0.05 ⁇ m are obtained for a powder in solution in water.
- the results of vision and analysis of scratches for a particle size of 0.7 ⁇ m are excellent.
- the invention also relates to a new use of a cleaning substance capable of being in contact with foodstuffs as a surface treatment product of a glass-based substrate, such as a fryer porthole, for imparting to the surface concerned and treated has a modifying effect on the geometry of the drops forming the mist.
- a cleaning substance capable of being in contact with foodstuffs as a surface treatment product of a glass-based substrate, such as a fryer porthole
- the new use consists in using a cleaning substance capable of being in contact with foodstuffs and comprising a composition including a mineral powder, as a treatment product for improving vision through a glass-based substrate intended to be in contact with water vapor mainly formed by water.
- the composition comprises a mineral powder advantageously formed by particles of an average size of less than 60 ⁇ m when they are mechanically stressed, for example by polishing, on a surface to be treated, and advantageously between 30 and 0.05 ⁇ m, and even more preferably between substantially 1 and 0.05 ⁇ m, the particles can also be of an average size between 1 and 0.8 ⁇ m on the one hand and between 0.6 and 0 ; 05 ⁇ m on the other hand.
- the range 1 - 0.05 ⁇ m provides the best results both in terms of improved vision and the appearance of scratches (any appearance of visible scratches at the surface of the glass-based substrate is avoided).
- the invention finds its industrial application in the field of cooking appliances provided with an internal vision zone, in particular fryers.
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- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Detergent Compositions (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP01996588A EP1272603A1 (fr) | 2000-11-14 | 2001-11-14 | Composition nettoyante pour substrat a base de verre, substrat a base de verre, procede de traitement du substrat |
AU2002218375A AU2002218375A1 (en) | 2000-11-14 | 2001-11-14 | Cleaning composition for glass substrate, glass substrate, method for treating the substrate |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR00/14776 | 2000-11-14 | ||
FR0014776A FR2816631B1 (fr) | 2000-11-14 | 2000-11-14 | Composition nettoyante pour ameliorer la vision a travers un substrat a base de verre, substrat a base de verre traite avec ladite composition, procede de traitement du substrat |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2002040625A1 true WO2002040625A1 (fr) | 2002-05-23 |
Family
ID=8856535
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2001/003573 WO2002040625A1 (fr) | 2000-11-14 | 2001-11-14 | Composition nettoyante pour substrat a base de verre, substrat a base de verre, procede de traitement du substrat |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1272603A1 (fr) |
AU (1) | AU2002218375A1 (fr) |
FR (1) | FR2816631B1 (fr) |
WO (1) | WO2002040625A1 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102053045A (zh) * | 2010-10-21 | 2011-05-11 | 中国海洋石油总公司 | 一种油基钻井液润湿剂的评价方法 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1538735A (fr) * | 1967-07-12 | 1968-09-06 | Du Pont | Compositions et procédés catalytiques pour nettoyer des ustensiles et matériels de cuisine par oxydation et sans abrasion |
US3540891A (en) * | 1968-06-14 | 1970-11-17 | Indiana University Foundation | Household cleaning and polishing composition |
FR2054521A1 (fr) * | 1969-07-29 | 1971-04-23 | Gosselin Claude | |
JPS5450511A (en) * | 1977-09-30 | 1979-04-20 | Kazuhiro Kudou | Treating agent for oil stain |
JPS60130698A (ja) * | 1983-12-19 | 1985-07-12 | ライオン株式会社 | 研磨材含有液体洗浄剤組成物 |
-
2000
- 2000-11-14 FR FR0014776A patent/FR2816631B1/fr not_active Expired - Fee Related
-
2001
- 2001-11-14 AU AU2002218375A patent/AU2002218375A1/en not_active Abandoned
- 2001-11-14 WO PCT/FR2001/003573 patent/WO2002040625A1/fr not_active Application Discontinuation
- 2001-11-14 EP EP01996588A patent/EP1272603A1/fr not_active Withdrawn
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1538735A (fr) * | 1967-07-12 | 1968-09-06 | Du Pont | Compositions et procédés catalytiques pour nettoyer des ustensiles et matériels de cuisine par oxydation et sans abrasion |
US3540891A (en) * | 1968-06-14 | 1970-11-17 | Indiana University Foundation | Household cleaning and polishing composition |
FR2054521A1 (fr) * | 1969-07-29 | 1971-04-23 | Gosselin Claude | |
JPS5450511A (en) * | 1977-09-30 | 1979-04-20 | Kazuhiro Kudou | Treating agent for oil stain |
JPS60130698A (ja) * | 1983-12-19 | 1985-07-12 | ライオン株式会社 | 研磨材含有液体洗浄剤組成物 |
Non-Patent Citations (2)
Title |
---|
DATABASE WPI Section Ch Week 197922, Derwent World Patents Index; Class D25, AN 1979-41523B, XP002175049 * |
DATABASE WPI Section Ch Week 198534, Derwent World Patents Index; Class A97, AN 1985-206783, XP002175048 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102053045A (zh) * | 2010-10-21 | 2011-05-11 | 中国海洋石油总公司 | 一种油基钻井液润湿剂的评价方法 |
Also Published As
Publication number | Publication date |
---|---|
AU2002218375A1 (en) | 2002-05-27 |
EP1272603A1 (fr) | 2003-01-08 |
FR2816631B1 (fr) | 2003-10-24 |
FR2816631A1 (fr) | 2002-05-17 |
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