EP0562968B1 - Process for applying a fluorocarbon based resin coating on a flat metallic substrate - Google Patents

Process for applying a fluorocarbon based resin coating on a flat metallic substrate Download PDF

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Publication number
EP0562968B1
EP0562968B1 EP93400779A EP93400779A EP0562968B1 EP 0562968 B1 EP0562968 B1 EP 0562968B1 EP 93400779 A EP93400779 A EP 93400779A EP 93400779 A EP93400779 A EP 93400779A EP 0562968 B1 EP0562968 B1 EP 0562968B1
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EP
European Patent Office
Prior art keywords
coating
screen
screen printing
applying
fluorocarbon resin
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP93400779A
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German (de)
French (fr)
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EP0562968A1 (en
Inventor
Claudine Gardaz
Jean-Pierre Buffard
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SEB SA
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SEB SA
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Publication date
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Publication of EP0562968A1 publication Critical patent/EP0562968A1/en
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Publication of EP0562968B1 publication Critical patent/EP0562968B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D1/00—Processes for applying liquids or other fluent materials
    • B05D1/40—Distributing applied liquids or other fluent materials by members moving relatively to surface
    • B05D1/42—Distributing applied liquids or other fluent materials by members moving relatively to surface by non-rotary members
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
    • B05D5/08—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain an anti-friction or anti-adhesive surface
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D1/00—Processes for applying liquids or other fluent materials
    • B05D1/32—Processes for applying liquids or other fluent materials using means for protecting parts of a surface not to be coated, e.g. using stencils, resists
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D2506/00—Halogenated polymers
    • B05D2506/10—Fluorinated polymers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/4998—Combined manufacture including applying or shaping of fluent material
    • Y10T29/49982—Coating
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49995—Shaping one-piece blank by removing material

Definitions

  • the present invention relates to a method of applying a coating based on fluorocarbon resin on a flat metal support, intended in particular after curing the coating to be stamped in the form of a culinary container.
  • the most commonly used method for applying a coating of fluorocarbon resin such as polytetrafluoroethylene consists in spraying onto the flat support having undergone prior chemical attack, an aqueous dispersion of particles of fluorocarbon resin.
  • the coating thus obtained adheres perfectly to the metal support thanks in particular to the microcavities formed thereon by chemical attack.
  • the spraying method has the disadvantage of causing a loss of fluorocarbon resin at least equal to 50% and pollution of the environment.
  • Another method consists in applying the coating to the flat support by means of a roller coated with a paste based on fluorocarbon resin.
  • This technique makes it possible to reduce the waste of fluorocarbon resin, but does not make it possible to obtain a quality coating. Indeed, the coating obtained is not perfectly smooth, but has undulations due to the passage of the roller. Therefore, this coating is sensitive to cracks.
  • the object of the present invention is to remedy the drawbacks of the processes known above, by creating a process which makes it possible both to obtain a smooth coating, adhering perfectly to the metallic support and generating neither waste nor pollution of the 'environment.
  • the method of applying a coating based on fluorocarbon resin on a flat metal support which, after application of the coating and hardening thereof is stamped in the form of a culinary container is characterized in that this coating is applied in the form of an aqueous dispersion in a continuous manner directly on the support by screen printing.
  • a screen printing screen is used to apply the coating, the part of which comprising meshes has a contour which is superimposed on the external contour of the planar metallic support.
  • the Japanese patent JP-A-63089185 discloses the application of a film based on fluorinated resin on the dorsal surface of scissors. However, this film is cooked at 150 ° C. and could therefore not be suitable for coating a culinary container brought to a high temperature.
  • the process covered by the present invention does not decorate a coating of already baked fluorocarbon resin, but produces a continuous coating directly on the metal support.
  • the effect of the doctor blade provides a perfectly smooth coating with a uniform and controllable thickness.
  • the method according to the invention makes it possible to avoid any waste of fluorocarbon resin, since the latter is applied only to the surface of the support and not outside of it.
  • the screen printing screen shown in FIG. 1 comprises a plate 1 having in its central part a circular zone 2 comprising meshes, constituted by a mesh of stainless steel or polyester with very fine meshes, the openings of which are for example between 50 and 200 ⁇ m.
  • a doctor blade 3 for example made of polyurethane elastomer.
  • the screen printing screen 1 is placed as indicated in FIG. 2, above a metal support 4, consisting for example of an aluminum disc, having previously undergone a chemical attack.
  • the circular edge 2a of the zone 2 comprising meshes of the screen corresponds exactly to the circular edge 4a of the support 4 in the form of a disc.
  • Zone 2 comprising meshes is devoid of any mask and extends a few tens of microns above the surface of the metal support 4.
  • a composition based on fluorocarbon resin for example formed from an aqueous dispersion of polytetrafluoroethylene mixed with a thickener to obtain a paste having a certain viscosity, and added with fillers (for example flakes of mica) is deposited on screen 1. ) and pigments.
  • the doctor blade 3 is moved over the area 2 comprising meshes, in order to spread the pasty composition 5 and force it through the meshes of the screen.
  • the pasty composition 5 is thus deposited on the surface of the support, forming on the latter a continuous coating of uniform thickness in the wet state of between 5 and 30 ⁇ m per layer.
  • the coating obtained is perfectly smooth, uniform, of constant thickness and has excellent adhesion to the support.
  • the thickener used during the implementation of the screen printing application process can be chosen for example from acrylic or methacrylic copolymers, bentones, polysaccharides, alginates, carboxymethylcelluloses and guaranates.
  • the screen-coated disc obtained according to the process according to the invention is stamped in the form of a culinary container.
  • the coating of fluorocarbon resin is removed in the area of the outer surface of the bottom of the container, that is to say the area intended to be exposed to heat.
  • This elimination also represents a waste of raw material and energy and generates additional pollution.

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  • Application Of Or Painting With Fluid Materials (AREA)
  • Printing Methods (AREA)
  • Manufacture Or Reproduction Of Printing Formes (AREA)

Description

La présente invention concerne un procédé d'application d'un revêtement à base de résine fluorocarbonée sur un support métallique plan, destiné notamment après cuisson du revêtement à être embouti sous la forme d'un récipient culinaire.The present invention relates to a method of applying a coating based on fluorocarbon resin on a flat metal support, intended in particular after curing the coating to be stamped in the form of a culinary container.

Le procédé le plus couramment utilisé pour appliquer un revêtement de résine fluorocarbonée telle que du polytétrafluoréthylène, consiste à pulvériser sur le support plan ayant subi une attaque chimique préalable, une dispersion aqueuse de particules de résine fluorocarbonée.The most commonly used method for applying a coating of fluorocarbon resin such as polytetrafluoroethylene, consists in spraying onto the flat support having undergone prior chemical attack, an aqueous dispersion of particles of fluorocarbon resin.

Le revêtement ainsi obtenu adhère parfaitement au support métallique grâce notamment aux microcavités formées sur celui-ci par l'attaque chimique.The coating thus obtained adheres perfectly to the metal support thanks in particular to the microcavities formed thereon by chemical attack.

Toutefois le procédé par pulvérisation présente l'inconvénient d'engendrer une perte de résine fluorocarbonée au moins égale à 50% et une pollution de l'environnement.However, the spraying method has the disadvantage of causing a loss of fluorocarbon resin at least equal to 50% and pollution of the environment.

Un autre procédé consiste à appliquer le revêtement sur le support plan au moyen d'un rouleau enduit d'une pâte à base de résine fluorocarbonée.Another method consists in applying the coating to the flat support by means of a roller coated with a paste based on fluorocarbon resin.

Cette technique permet de réduire le gaspillage de résine fluorocarbonée, mais ne permet pas d'obtenir un revêtement de qualité. En effet, le revêtement obtenu n'est pas parfaitement lisse, mais présente des ondulations du fait du passage du rouleau. De ce fait, ce revêtement est sensible aux fissures.This technique makes it possible to reduce the waste of fluorocarbon resin, but does not make it possible to obtain a quality coating. Indeed, the coating obtained is not perfectly smooth, but has undulations due to the passage of the roller. Therefore, this coating is sensitive to cracks.

Le but de la présente invention est de remédier aux inconvénients des procédés connus ci-dessus, en créant un procédé qui permette à la fois d'obtenir un revêtement lisse, adhérant parfaitement au support métallique et n'engendrant ni gaspillage, ni pollution de l'environnement.The object of the present invention is to remedy the drawbacks of the processes known above, by creating a process which makes it possible both to obtain a smooth coating, adhering perfectly to the metallic support and generating neither waste nor pollution of the 'environment.

Suivant l'invention, le procédé d'application d'un revêtement à base de résine fluorocarbonée sur un support métallique plan qui, après application du revêtement et durcissement de celui-ci est embouti sous forme de récipient culinaire, est caractérisé en ce que ce revêtement est appliqué sous forme de dispersion aqueuse d'une manière continue directement sur le support par sérigraphie.According to the invention, the method of applying a coating based on fluorocarbon resin on a flat metal support which, after application of the coating and hardening thereof is stamped in the form of a culinary container, is characterized in that this coating is applied in the form of an aqueous dispersion in a continuous manner directly on the support by screen printing.

Selon ce procédé, on utilise pour appliquer le revêtement un écran sérigraphique dont la partie comportant des mailles présente un contour qui se superpose au contour extérieur du support métallique plan.According to this method, a screen printing screen is used to apply the coating, the part of which comprising meshes has a contour which is superimposed on the external contour of the planar metallic support.

On connaît selon le brevet japonais JP-A-63089185 l'application d'un film à base de résine fluorée sur la surface dorsale de ciseaux. Mais ce film est cuit à 150°C et ne pourrait pas par conséquent convenir pour revêtir un récipient culinaire porté à haute température.The Japanese patent JP-A-63089185 discloses the application of a film based on fluorinated resin on the dorsal surface of scissors. However, this film is cooked at 150 ° C. and could therefore not be suitable for coating a culinary container brought to a high temperature.

On connaît selon le brevet européen EP-A-0188958 au nom de la demanderesse un procédé pour réaliser un décor sur un revêtement en résine fluorocarbonée, dans lequel une composition à base de résine fluorocarbonée est appliquée sur un support métallique à travers les mailles d'un écran sérigraphique. Cet écran sérigraphique porte bien entendu un masque correspondant au motif que l'on désire reproduire.According to European patent EP-A-0188958, a process is known in the name of the applicant for producing a decoration on a coating of fluorocarbon resin, in which a composition based on fluorocarbon resin is applied to a metallic support through the meshes of a screen printing screen. This serigraphic screen of course carries a mask corresponding to the pattern that one wishes to reproduce.

Contrairement au procédé décrit dans le brevet français précité, le procédé visé par la présente invention ne réalise pas un décor sur un revêtement de résine fluorocarbonée déjà cuit, mais réalise un revêtement continu directement sur le support métallique.Unlike the process described in the aforementioned French patent, the process covered by the present invention does not decorate a coating of already baked fluorocarbon resin, but produces a continuous coating directly on the metal support.

Les essais ont montré qu'un tel revêtement adhérait parfaitement au support métallique préalablement soumis à une attaque chimique, comme dans la technique antérieure connue. Un tel résultat peut s'expliquer a posteriori par le fait que la racle utilisée pour appliquer le revêtement à travers les mailles de l'écran sérigraphique force les particules de résine fluorocarbonée à pénétrer dans les microcavités du support métallique plan, ce qui permet d'obtenir après cuisson une adhérence parfaite du revêtement.Tests have shown that such a coating adheres perfectly to the metal support previously subjected to chemical attack, as in the known prior art. Such a result can to be explained a posteriori by the fact that the doctor blade used to apply the coating through the meshes of the screen-printing screen forces the particles of fluorocarbon resin to penetrate into the microcavities of the flat metal support, which makes it possible to obtain after cooking perfect adhesion of the coating.

De plus, l'effet de la racle permet d'obtenir un revêtement parfaitement lisse et d'une épaisseur uniforme et contrôlable.In addition, the effect of the doctor blade provides a perfectly smooth coating with a uniform and controllable thickness.

Par ailleurs, le procédé selon l'invention permet d'éviter tout gaspillage de résine fluorocarbonée, car celle-ci est appliquée uniquement sur la surface du support et non pas à l'extérieur de celui-ci.Furthermore, the method according to the invention makes it possible to avoid any waste of fluorocarbon resin, since the latter is applied only to the surface of the support and not outside of it.

D'autres particularités et avantages de l'invention apparaîtront encore dans la description ci-après.Other features and advantages of the invention will appear in the description below.

Aux dessins annexés donnés à titre d'exemples non limitatifs:

  • la figure 1 est une vue en perspective d'un écran sérigraphique utilisé dans la mise en oeuvre du procédé selon l'invention,
  • la figure 2 est une vue en coupe longitudinale de l'écran sérigraphique en position sur le support métallique.
In the appended drawings given by way of nonlimiting examples:
  • FIG. 1 is a perspective view of a screen printing screen used in the implementation of the method according to the invention,
  • Figure 2 is a longitudinal sectional view of the screen printing screen in position on the metal support.

L'écran sérigraphique représenté sur la figure 1 comprend une plaque 1 présentant dans sa partie centrale une zone circulaire 2 comportant des mailles, constituée par un grillage en acier inoxydable ou polyester à mailles très fines, dont les ouvertures sont comprises par exemple entre 50 et 200 µm.The screen printing screen shown in FIG. 1 comprises a plate 1 having in its central part a circular zone 2 comprising meshes, constituted by a mesh of stainless steel or polyester with very fine meshes, the openings of which are for example between 50 and 200 µm.

Sur cette plaque 1 peut se déplacer suivant la flèche F une racle 3 par exemple en élastomère polyuréthane.On this plate 1 can move along arrow F a doctor blade 3, for example made of polyurethane elastomer.

Conformément au procédé selon l'invention, l'écran sérigraphique 1 est placé comme indiqué sur la figure 2, au-dessus d'un support métallique 4, constitué par exemple d'un disque en aluminium, ayant préalablement subi une attaque chimique.In accordance with the method according to the invention, the screen printing screen 1 is placed as indicated in FIG. 2, above a metal support 4, consisting for example of an aluminum disc, having previously undergone a chemical attack.

Le bord circulaire 2a de la zone 2 comportant des mailles de l'écran correspond exactement au bord circulaire 4a du support 4 en forme de disque.The circular edge 2a of the zone 2 comprising meshes of the screen corresponds exactly to the circular edge 4a of the support 4 in the form of a disc.

La zone 2 comportant des mailles est dépourvue de tout masque et s'étend à quelques dizaines de microns au-dessus de la surface du support métallique 4.Zone 2 comprising meshes is devoid of any mask and extends a few tens of microns above the surface of the metal support 4.

Pour appliquer un revêtement de résine fluorocarbonée sur le support 4, on procède comme suit:To apply a coating of fluorocarbon resin on the support 4, the procedure is as follows:

On dépose sur l'écran 1, une composition à base de résine fluorocarbonée, par exemple formée d'une dispersion aqueuse de polytétrafluoréthylène mélangée avec un épaississant pour obtenir une pâte ayant une certaine viscosité, et additionnée de charges (par exemple des paillettes de mica) et de pigments.A composition based on fluorocarbon resin, for example formed from an aqueous dispersion of polytetrafluoroethylene mixed with a thickener to obtain a paste having a certain viscosity, and added with fillers (for example flakes of mica) is deposited on screen 1. ) and pigments.

On déplace la racle 3 sur la zone 2 comportant des mailles, pour étaler la composition pâteuse 5 et forcer celle-ci à travers les mailles de l'écran. La composition pâteuse 5 se dépose ainsi sur la surface du support, en formant sur ce dernier un revêtement continu d'épaisseur uniforme à l'état humide comprise entre 5 et 30 µm par couche.The doctor blade 3 is moved over the area 2 comprising meshes, in order to spread the pasty composition 5 and force it through the meshes of the screen. The pasty composition 5 is thus deposited on the surface of the support, forming on the latter a continuous coating of uniform thickness in the wet state of between 5 and 30 μm per layer.

Lors de l'application du revêtement, aucune matière n'est perdue et l'environnement n'est ni sali ni pollué.When the coating is applied, no material is lost and the environment is neither soiled nor polluted.

Après cuisson à 400-420°C, le revêtement obtenu est parfaitement lisse, uniforme, d'épaisseur constante et présente une excellente adhérence au support.After baking at 400-420 ° C, the coating obtained is perfectly smooth, uniform, of constant thickness and has excellent adhesion to the support.

L'épaississant utilisé lors de la mise en oeuvre du procédé d'application sérigraphique peut être choisi par exemple parmi les copolymères acryliques ou méthacryliques, les bentones, les polysaccharides, alginates, carboxyméthylcelluloses et les guaranates.The thickener used during the implementation of the screen printing application process can be chosen for example from acrylic or methacrylic copolymers, bentones, polysaccharides, alginates, carboxymethylcelluloses and guaranates.

Des exemples de formulation de la composition de résine fluorocarbonée mise en oeuvre dans le procédé selon l'invention sont décrits dans le brevet européen EP-A-0188958.Examples of formulation of the fluorocarbon resin composition used in the process according to the invention are described in European patent EP-A-0188958.

Le disque revêtu par sérigraphie obtenu selon le procédé conforme à l'invention est embouti sous la forme d'un récipient culinaire.The screen-coated disc obtained according to the process according to the invention is stamped in the form of a culinary container.

Habituellement on élimine le revêtement de résine fluorocarbonée dans la zone de la surface extérieure du fond du récipient, c'est-à-dire la zone destinée à être exposée à la chaleur.Usually the coating of fluorocarbon resin is removed in the area of the outer surface of the bottom of the container, that is to say the area intended to be exposed to heat.

Cette élimination représente également un gaspillage de matière première et d'énergie et engendre une pollution supplémentaire.This elimination also represents a waste of raw material and energy and generates additional pollution.

Cet inconvénient peut être évité grâce au procédé selon l'invention, en prévoyant sur le grillage 2 de l'écran sérigraphique 1, un masque 6 (représenté en pointillés sur la figure 1) couvrant une zone centrale du grillage 2, correspondant à la surface extérieure du fond du récipient à emboutir. Grâce à ce masque 6, la partie du disque 3 correspond au fond ci-dessus, ne sera pas revêtue de résine fluorocarbonée de la mise en oeuvre du procédé d'application par sérigraphie.This drawback can be avoided by the method according to the invention, by providing on the screen 2 of the screen printing screen 1, a mask 6 (shown in dotted lines in FIG. 1) covering a central area of the screen 2, corresponding to the surface outside of the bottom of the container to be stamped. With this mask 6, the part of the disc 3 corresponds to the bottom above, will not be coated with fluorocarbon resin from the implementation of the application process by screen printing.

Bien entendu, l'invention n'est pas limitée aux exemples que l'on vient de décrire et on peut apporter à ceux-ci de nombreuses modifications sans sortir du cadre de l'invention.Of course, the invention is not limited to the examples which have just been described and numerous modifications can be made to them without departing from the scope of the invention.

Claims (7)

  1. A method of applying a fluorocarbon resin based coating to a flat metal support (4) which, after application of the coating and hardening thereof, is pressed into the form of a cooking vessel, characterised in that the said coating is applied in the form of an aqueous dispersion continuously and directly to the support (4) by silk-screen printing.
  2. A method according to claim 1, characterised in that for the purpose of applying the coating use is made of a silk-screen printing screen (1) whose part containing meshes (2) has a contour (2a) which is superimposed on the outer contour (4a) of the flat metal support (4).
  3. A method according to claim 2, characterised in that the silk-screen printing screen (1) has no mask at all on its part containing the meshes (2).
  4. A method according to claim 2, characterised in that the silk-screen printing screen (1) has no mask at all on its part having the meshes, except for a central zone (6) of said part.
  5. A method according to claim 4, characterised in that the masked central zone (6) of the silk-screen printing screen corresponds to the outer surface of the base of the cooking vessel for pressing.
  6. A method according to any one of claims 1 to 5, characterised in that a mixture of fluorocarbon resin in the form of a dispersion, a thickener, fillers and pigments, is applied to the metal support.
  7. A method according to any one of claims 1 to 6, characterised in that the flat metal support (4) is in the form of a disc.
EP93400779A 1992-03-27 1993-03-25 Process for applying a fluorocarbon based resin coating on a flat metallic substrate Expired - Lifetime EP0562968B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9203730A FR2689037B1 (en) 1992-03-27 1992-03-27 PROCESS FOR APPLYING A FLUOROCARBON RESIN COATING ON A FLAT METAL SUPPORT.
FR9203730 1992-03-27

Publications (2)

Publication Number Publication Date
EP0562968A1 EP0562968A1 (en) 1993-09-29
EP0562968B1 true EP0562968B1 (en) 1996-08-14

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EP93400779A Expired - Lifetime EP0562968B1 (en) 1992-03-27 1993-03-25 Process for applying a fluorocarbon based resin coating on a flat metallic substrate

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US (1) US5383264A (en)
EP (1) EP0562968B1 (en)
DE (1) DE69303955T2 (en)
FR (1) FR2689037B1 (en)

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CN1953821B (en) * 2004-05-04 2011-06-22 Seb公司 Method for producing an antiadhesive coating and composition of a primer layer

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FR2744129B1 (en) 1996-01-29 1998-04-10 Seb Sa ANTI-ADHESIVE COATING FOR ALUMINUM KITCHEN UTENSILS
AUPR033400A0 (en) * 2000-09-25 2000-10-19 Kahn, Stephen R Applied friction surface (afs)
EP2169011A1 (en) * 2008-09-24 2010-03-31 Looser Holding AG Thickener for sinter or melting polymer dispersions
FR2982508B1 (en) * 2011-11-14 2014-08-29 Peugeot Citroen Automobiles Sa METHOD FOR COATING A SERIES CHART OF REVOLUTION
US10542951B2 (en) 2015-07-23 2020-01-28 General Electric Company Systems, methods, and devices for simplified high quality imaging of biopsy samples on a mammography machine

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GB788791A (en) * 1954-11-05 1958-01-08 Glacier Co Ltd Plain bearings and composite bearing materials
FR2576253B1 (en) * 1985-01-23 1988-07-29 Seb Sa PROCESS FOR MAKING A DECORATION ON A POLYTETRAFLUORETHYLENE COATING AND CULINARY UTENSIL THEREOF
JPS6389185A (en) * 1986-09-30 1988-04-20 長谷川刃物株式会社 Scissors
US5202162A (en) * 1989-10-06 1993-04-13 Ferro Corporation Thermoplastic coating compositions and process using same for the preparation of decorative coatings
JPH0717869B2 (en) * 1990-01-22 1995-03-01 連田 田代 Ink for screen printing and products printed with it

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Title
PATENT ABSTRACTS OF JAPAN vol. 15, no. 496 (C-894)16 Décembre 1991;& JP A 32 017470 (.ENTA TASHIRO) *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1953821B (en) * 2004-05-04 2011-06-22 Seb公司 Method for producing an antiadhesive coating and composition of a primer layer

Also Published As

Publication number Publication date
DE69303955D1 (en) 1996-09-19
DE69303955T2 (en) 1996-12-19
FR2689037B1 (en) 1995-06-30
FR2689037A1 (en) 1993-10-01
EP0562968A1 (en) 1993-09-29
US5383264A (en) 1995-01-24

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