WO2006114226A2 - Couche de protection qui sert en particulier a proteger des bords et/ou des aretes, et procede d'application d'une couche de protection - Google Patents
Couche de protection qui sert en particulier a proteger des bords et/ou des aretes, et procede d'application d'une couche de protection Download PDFInfo
- Publication number
- WO2006114226A2 WO2006114226A2 PCT/EP2006/003591 EP2006003591W WO2006114226A2 WO 2006114226 A2 WO2006114226 A2 WO 2006114226A2 EP 2006003591 W EP2006003591 W EP 2006003591W WO 2006114226 A2 WO2006114226 A2 WO 2006114226A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- protective layer
- coating
- sprayed
- layer according
- polyurethane
- Prior art date
Links
- 239000011241 protective layer Substances 0.000 title claims abstract description 45
- 238000000034 method Methods 0.000 title claims abstract description 20
- 230000008569 process Effects 0.000 title abstract description 6
- 238000000576 coating method Methods 0.000 claims abstract description 28
- 239000011248 coating agent Substances 0.000 claims abstract description 24
- 239000004033 plastic Substances 0.000 claims abstract description 14
- 229920002635 polyurethane Polymers 0.000 claims abstract description 14
- 239000004814 polyurethane Substances 0.000 claims abstract description 14
- 229920003023 plastic Polymers 0.000 claims abstract description 13
- 239000012815 thermoplastic material Substances 0.000 claims abstract 2
- 239000010410 layer Substances 0.000 claims description 14
- 239000007921 spray Substances 0.000 claims description 12
- 239000012948 isocyanate Substances 0.000 claims description 5
- 150000002513 isocyanates Chemical class 0.000 claims description 5
- 238000004806 packaging method and process Methods 0.000 claims description 5
- 229920005862 polyol Polymers 0.000 claims description 5
- 150000003077 polyols Chemical class 0.000 claims description 5
- 125000001931 aliphatic group Chemical group 0.000 claims description 4
- 239000007858 starting material Substances 0.000 claims description 2
- 239000002966 varnish Substances 0.000 claims description 2
- 239000002184 metal Substances 0.000 description 18
- 229910052751 metal Inorganic materials 0.000 description 18
- 238000005507 spraying Methods 0.000 description 7
- 230000035939 shock Effects 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- 239000011253 protective coating Substances 0.000 description 5
- 239000011111 cardboard Substances 0.000 description 4
- 239000006260 foam Substances 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 229910052755 nonmetal Inorganic materials 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- RNLHGQLZWXBQNY-UHFFFAOYSA-N 3-(aminomethyl)-3,5,5-trimethylcyclohexan-1-amine Chemical compound CC1(C)CC(N)CC(C)(CN)C1 RNLHGQLZWXBQNY-UHFFFAOYSA-N 0.000 description 1
- UPMLOUAZCHDJJD-UHFFFAOYSA-N 4,4'-Diphenylmethane Diisocyanate Chemical compound C1=CC(N=C=O)=CC=C1CC1=CC=C(N=C=O)C=C1 UPMLOUAZCHDJJD-UHFFFAOYSA-N 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 125000004177 diethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 230000003670 easy-to-clean Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 150000002843 nonmetals Chemical class 0.000 description 1
- 239000006223 plastic coating Substances 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 239000011527 polyurethane coating Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000003763 resistance to breakage Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/02—Polyureas
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/08—Processes
- C08G18/10—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G2150/00—Compositions for coatings
- C08G2150/50—Compositions for coatings applied by spraying at least two streams of reaction components
Definitions
- Protective layer in particular as impact and / or edge protection and method for applying the protective layer
- the invention relates to a protective layer or protective coating, in particular as impact and / or edge protection, having the features of the preamble of claim 1 and a method for applying the protective layer to objects.
- This protective layer serves as impact and / or edge protection for objects, such as containers, packaging, parts to be transported and / or protected, transport racks and load racks and their components, such as pipes, rods and other parts made of metal, plastic, wood or Cardboard to protect the goods to be transported and / or the objects themselves against damage.
- objects such as containers, packaging, parts to be transported and / or protected, transport racks and load racks and their components, such as pipes, rods and other parts made of metal, plastic, wood or Cardboard to protect the goods to be transported and / or the objects themselves against damage.
- plastic strips are known, which are riveted to square tubes of racks and so absorb shocks between the transport frame and cargo.
- a disadvantage of this solution is that the plastic strips or rods must be riveted consuming on the metal frame. This requires a great deal of labor and personnel, as the holes for fixing the rivets have to be pre-drilled and individual rivets must be set. If the strip is worn with repeated use, it can only be removed with an equally high outlay and leaves permanent damage to the respective pipe or rod. The reason for this is that the now exposed hole damages the corrosion protection on the metal body and the frame is initially consuming to disassemble, so you can get closer to the protective strips.
- Cover strips are known from DE-OS 2921000, which enclose a channel-shaped base part on three sides and thus prevent a wall or plate, on which the base part is fixed, from being damaged. To do this, the base part must first be fastened to the plate or wall to be protected. Also known from DE-OS 2825726 cover strips are known to enclose the metal edges U-shaped and fixed by protruding lips on the inside of the corresponding metal strip. However, these devices are not suitable to enclose metal tubes or rods on the whole side and thus to ensure shock and abrasion protection on all sides of the tube. Again, no protection in corners and angles is possible.
- the object of the present invention is to provide a shock and / or edge protection for objects of the type and use mentioned above, which can be produced in a simple and fast work process and thereby on all sides and inaccessible places Items a durable and reliable. Protection against damage.
- the sprayed-on plastic coating adhering directly to the objects in accordance with the present invention can be obtained by the process according to the invention Spraying or spraying process can be achieved, wherein the plastic forms a homogeneous layer with a smooth surface and this layer reaches sufficient strength and strength to achieve the required shock and edge protection len.
- a significant advantage of the sheath according to the invention is that a shock and / or edge protection is also present at those points where other protective devices or protective layers could not be installed or only with considerable time and technical effort.
- the coating can be applied quickly and easily on all sides of the respective article, this coating thus provides sufficient protection not only during transport of the respective good or parts to be transported, but also, for example, during loading and unloading of transport racks. Containers, packaging and the like.
- the coating can be flexibly applied to the differently shaped objects and does not require a high coordination process or custom-made. This results in a high potential of saved working time.
- a further cost reduction results from the fact that the material for the coating can be targeted and used sparingly.
- the material of the protective layer forms a smooth surface after spraying. Should the sheathing be damaged by permanent stress, the entire layer does not have to be loosely loosened from the load frame or any other device or object, but can simply be oversprayed again in a simple manner. As a result, for example, a load frame gets a clean and new valued appearance, the protective effect of the goods to be transported and the metal parts or other parts of the load frame is then made properly again.
- loads or other devices already in use can be retrofitted with the protective layer without having to intervene in the substance of the respective device or requiring expensive disassembly.
- the protective layer or coating according to the invention adheres well not only to metals but also to non-metals, non-metallic devices and parts, such as plastic parts, for the same purpose can be coated to the same shock and / or edge problem as in To solve metal parts. Even Hoiz- and cardboard parts or devices and parts or packaging made of hard foam can be coated with the protective layer of the invention.
- the protective layer or coating advantageously has a layer thickness of 0.1 to 20 mm, preferably 2 to 5 mm. As a result, a sufficient protective layer is formed with a minimum production outlay.
- Polyurethane has proved to be a particularly suitable plastic, the properties of which for the coating provide an ideal balance between the specifications for a high desired damping and a sufficient abrasion hardness and strength. could be found.
- This elastomeric polyurethane for the coating may also be colored.
- the desired coating with the desired properties can be achieved advantageously in that the polyurethane consists of two simultaneously sprayed or sprayed components based on polyol and isocyanate.
- the coating can still be coated with an aliphatic varnish to achieve a smooth surface with low stiction.
- a particularly suitable method for applying the protective layer of polyurethane with the desired properties is that the polyol- and isocyanate-based starting materials are fed separately to a spraying device with mixing device and mixed with one another by spraying or spraying onto the device.
- the desired properties and the desired flow behavior can be achieved by appropriately adjusting the spray pressure and / or the ratio of the components and / or the temperature of the components.
- the application of the protective layer is advantageously carried out manually or robotically controlled by means of a spray gun or a spray head.
- FIG. 1 shows a perspective illustration of the protective layer according to the invention as impact and / or edge protection on a metal tube with a square cross section
- Figure 2 is a corresponding perspective view of an angle section
- Figure 3 is a corresponding perspective view of a corner joint of square tubes.
- a square metal tube 1 shown in perspective view is provided by spraying with the protective layer or coating 2.
- the coating 2 is cut on the sides 22.
- the material, namely the polyurethane, forms a smooth surface 23.
- FIG. 2 shows a similar perspective view of an angled metal rod 3, which has been correspondingly provided with a polyurethane coating 2. Again, the coating 2 is cut at its sides 22 for the purpose of better illustration.
- the corner joint shown in Figure 3 also in perspective view of three square metal tubes 4, as typically and frequently occurs in a load frame is also provided with such a coating 2.
- the coating 2 completely covers the edges 41 and the bearing surfaces 42 of the square metal tubes. Again, the coating 2 is cut open for purposes of illustration. Of course, in an actual embodiment, it covers and covers all surfaces to be protected.
- a 2-component-component spray gun or a corresponding spray head is used to apply the coating 2 serving as a protective layer.
- a 2-component-component spray gun or a corresponding spray head is used to produce the polyurethane protective layer.
- two components based on polyol and isocyanate are fed separately to the spray gun or the spray head and mixed in the gun or the spray head, which has a corresponding mixing device or is provided with such a device.
- the two components mixed with one another are then sprayed or sprayed cold under pressure onto the device to be provided with the protective layer or to the article to be provided with the protective layer.
- the two components mixed together then very quickly form the desired as protective layer polyurethane, which as such on the Vor
- the desired properties ie the strength, the elasticity, the hardness, the flow properties and the like, can be determined by the choice of the ratio of the two components and the respectively set determine the temperature and the pressure used.
- the desired Shore hardness is preferably 4 ⁇ to 50 u (Shore A), preferably substantially 45 °. in particular, in vertical or inclined surfaces or objects, it is important that the sprayed material is rapidly solidified and does not flow, so that larger layer thicknesses can be achieved, which in principle be up to 20 mm be but may preferably be in the range between 2 and 5 mm.
- the achieved polyurethane layer has a relatively high coefficient of friction. If a lower coefficient of friction is desired, the protective layer can be coated with an aliphatic topcoat which adheres well to polyurethane and, in addition to reducing the coefficient of static friction, provides an even smoother surface.
- a colored polyurethane layer can also be achieved by supplying dyes to the two components.
- polyol component As a polyol component is particularly suitable a composition of the components isophorone diamine and diethyl methylbezolediamine.
- isocyanate component diphenylmethane-4,4'-diisocyanate or modifications thereof are particularly suitable.
- both the parts to be protected and load racks, load carriers, transport containers, packaging for such parts can be provided with the protective layer.
- a release agent for example with a layer of grease, beforehand.
- the protective layer or coating according to the invention adheres to metallic and non-metallic surfaces, ie also, for example, to hard plastics, foamed plastics, for example polystyrene or PE foams, porous materials, wood, cardboard and the like.
- fen such as foams, cardboard and the like. This also involves surface hardening and improvement.
- the protective layer also serves as a corrosion layer in many cases and forms surfaces which are easy to clean, which can be of great advantage, in particular in the case of porous materials. This improvement can be increased by an aliphatic topcoat.
- the protective layer is also particularly suitable for protecting electronic components, circuit boards, cable harnesses and the like against damage and moisture.
- a release agent can be applied in each case before the coating, if the protective layer is used e.g. should be removed after a transport again.
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Buffer Packaging (AREA)
- Laminated Bodies (AREA)
- Wrappers (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
L'invention concerne une couche de protection qui sert, en particulier, à protéger des bords et/ou des arêtes, qui est constituée d'une matière thermoplastique, en particulier de polyuréthanne, et qui est conçue pour des objets tels que des châssis de transport, des récipients, des emballages, et d'autres pièces à protéger. La présente invention se rapporte en outre à un procédé pour appliquer cette couche de protection. La matière plastique forme un revêtement (2) qui est directement pulvérisé ou atomisé à froid sur l'objet (1), en tant que couche de protection, et qui adhère directement à l'objet, le revêtement (2) formant une surface lisse (23). L'objet (1) à protéger au moyen du revêtement (2) ne doit pas être prétraité, de manière à pouvoir produire une couche de protection intégrale, facilement et rapidement, qui remplit également les coins, les arêtes, et les cavités, sans aucun problème.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE200520006874 DE202005006874U1 (de) | 2005-04-27 | 2005-04-27 | Beschichtung als Kantenschutz |
| DE202005006874.8 | 2005-04-27 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| WO2006114226A2 true WO2006114226A2 (fr) | 2006-11-02 |
| WO2006114226A3 WO2006114226A3 (fr) | 2007-10-04 |
Family
ID=34717064
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2006/003591 WO2006114226A2 (fr) | 2005-04-27 | 2006-04-20 | Couche de protection qui sert en particulier a proteger des bords et/ou des aretes, et procede d'application d'une couche de protection |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE202005006874U1 (fr) |
| WO (1) | WO2006114226A2 (fr) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102007017410A1 (de) | 2007-04-13 | 2008-10-16 | Rolf Weinhardt | Selbstklebendes Beschichtungs- und Überzugsmaterial |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1987007287A1 (fr) * | 1986-05-23 | 1987-12-03 | Ameron, Inc. | Compositions d'atomisation de polyurethane sans solvant, et procede d'application desdites compositions |
| EP0376674A1 (fr) * | 1988-12-28 | 1990-07-04 | MITSUI TOATSU CHEMICALS, Inc. | Elastomère d'uréthane pour pulvérisation |
| US5171818A (en) * | 1990-03-23 | 1992-12-15 | Bruce Wilson | Sprayable aliphatic polyurea-polyurethane coating compositions and methods |
-
2005
- 2005-04-27 DE DE200520006874 patent/DE202005006874U1/de not_active Expired - Lifetime
-
2006
- 2006-04-20 WO PCT/EP2006/003591 patent/WO2006114226A2/fr not_active Application Discontinuation
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1987007287A1 (fr) * | 1986-05-23 | 1987-12-03 | Ameron, Inc. | Compositions d'atomisation de polyurethane sans solvant, et procede d'application desdites compositions |
| EP0376674A1 (fr) * | 1988-12-28 | 1990-07-04 | MITSUI TOATSU CHEMICALS, Inc. | Elastomère d'uréthane pour pulvérisation |
| US5171818A (en) * | 1990-03-23 | 1992-12-15 | Bruce Wilson | Sprayable aliphatic polyurea-polyurethane coating compositions and methods |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102007017410A1 (de) | 2007-04-13 | 2008-10-16 | Rolf Weinhardt | Selbstklebendes Beschichtungs- und Überzugsmaterial |
Also Published As
| Publication number | Publication date |
|---|---|
| DE202005006874U1 (de) | 2005-06-30 |
| WO2006114226A3 (fr) | 2007-10-04 |
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