EP1752227B1 - Antistick-coating, method of production and antistick-coated substrate materials - Google Patents
Antistick-coating, method of production and antistick-coated substrate materials Download PDFInfo
- Publication number
- EP1752227B1 EP1752227B1 EP20060015766 EP06015766A EP1752227B1 EP 1752227 B1 EP1752227 B1 EP 1752227B1 EP 20060015766 EP20060015766 EP 20060015766 EP 06015766 A EP06015766 A EP 06015766A EP 1752227 B1 EP1752227 B1 EP 1752227B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- layer
- cover layer
- primer layer
- primer
- range
- 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.)
- Active
Links
- 238000000576 coating method Methods 0.000 title claims description 80
- 239000011248 coating agent Substances 0.000 title claims description 74
- 239000000758 substrate Substances 0.000 title claims description 50
- 238000000034 method Methods 0.000 title claims description 37
- 239000000463 material Substances 0.000 title claims description 15
- 238000004519 manufacturing process Methods 0.000 title claims description 7
- 239000010410 layer Substances 0.000 claims description 208
- 239000000203 mixture Substances 0.000 claims description 25
- 229920001296 polysiloxane Polymers 0.000 claims description 15
- 239000002904 solvent Substances 0.000 claims description 14
- 238000011282 treatment Methods 0.000 claims description 12
- 238000001035 drying Methods 0.000 claims description 11
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 claims description 10
- 239000011347 resin Substances 0.000 claims description 10
- 229920005989 resin Polymers 0.000 claims description 10
- 229910052751 metal Inorganic materials 0.000 claims description 8
- 239000002184 metal Substances 0.000 claims description 8
- 239000004033 plastic Substances 0.000 claims description 8
- 229920003023 plastic Polymers 0.000 claims description 8
- 239000000843 powder Substances 0.000 claims description 8
- 238000007669 thermal treatment Methods 0.000 claims description 8
- 239000000919 ceramic Substances 0.000 claims description 7
- -1 polysiloxane Polymers 0.000 claims description 7
- 238000005496 tempering Methods 0.000 claims description 7
- 239000004848 polyfunctional curative Substances 0.000 claims description 6
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 6
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 5
- 239000000853 adhesive Substances 0.000 claims description 5
- 239000003822 epoxy resin Substances 0.000 claims description 5
- 239000011521 glass Substances 0.000 claims description 5
- 229920000647 polyepoxide Polymers 0.000 claims description 5
- 239000004593 Epoxy Substances 0.000 claims description 4
- 230000001070 adhesive effect Effects 0.000 claims description 4
- 229910052799 carbon Inorganic materials 0.000 claims description 4
- 239000000945 filler Substances 0.000 claims description 4
- 229910052731 fluorine Inorganic materials 0.000 claims description 4
- 239000011737 fluorine Substances 0.000 claims description 4
- 229910002804 graphite Inorganic materials 0.000 claims description 2
- 239000010439 graphite Substances 0.000 claims description 2
- 239000002344 surface layer Substances 0.000 claims description 2
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 claims 1
- 230000001737 promoting effect Effects 0.000 claims 1
- 239000002245 particle Substances 0.000 description 10
- 238000005245 sintering Methods 0.000 description 10
- 239000000126 substance Substances 0.000 description 8
- 239000011159 matrix material Substances 0.000 description 7
- 238000000137 annealing Methods 0.000 description 6
- 238000009826 distribution Methods 0.000 description 5
- 230000000087 stabilizing effect Effects 0.000 description 5
- 238000005299 abrasion Methods 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 229920001971 elastomer Polymers 0.000 description 4
- 241000467686 Eschscholzia lobbii Species 0.000 description 3
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 3
- 239000004809 Teflon Substances 0.000 description 3
- 229920006362 Teflon® Polymers 0.000 description 3
- 239000000654 additive Substances 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 239000000470 constituent Substances 0.000 description 3
- 239000002346 layers by function Substances 0.000 description 3
- 238000005488 sandblasting Methods 0.000 description 3
- 229910052710 silicon Inorganic materials 0.000 description 3
- 239000003381 stabilizer Substances 0.000 description 3
- 229910001369 Brass Inorganic materials 0.000 description 2
- 239000004971 Cross linker Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000002318 adhesion promoter Substances 0.000 description 2
- 239000010951 brass Substances 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000004132 cross linking Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 239000000839 emulsion Substances 0.000 description 2
- 238000005530 etching Methods 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 238000009499 grossing Methods 0.000 description 2
- 238000010348 incorporation Methods 0.000 description 2
- 230000002687 intercalation Effects 0.000 description 2
- 238000009830 intercalation Methods 0.000 description 2
- 238000002372 labelling Methods 0.000 description 2
- 230000000717 retained effect Effects 0.000 description 2
- 150000004760 silicates Chemical class 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 2
- 229910010271 silicon carbide Inorganic materials 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 239000007858 starting material Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 1
- 229910052582 BN Inorganic materials 0.000 description 1
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 description 1
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 229920002943 EPDM rubber Polymers 0.000 description 1
- 229920002430 Fibre-reinforced plastic Polymers 0.000 description 1
- 239000004831 Hot glue Substances 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 229910000746 Structural steel Inorganic materials 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 230000000181 anti-adherent effect Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 239000003431 cross linking reagent Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000003670 easy-to-clean Effects 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 150000002118 epoxides Chemical class 0.000 description 1
- 239000011151 fibre-reinforced plastic Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000002105 nanoparticle Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 239000011208 reinforced composite material Substances 0.000 description 1
- 230000003678 scratch resistant effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 229920002050 silicone resin Polymers 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 description 1
- 238000004073 vulcanization Methods 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
Images
Classifications
-
- 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
- B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
- B05D5/02—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain a matt or rough 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
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/50—Multilayers
- B05D7/52—Two layers
-
- 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
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/50—Multilayers
- B05D7/56—Three layers or more
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41N—PRINTING PLATES OR FOILS; MATERIALS FOR SURFACES USED IN PRINTING MACHINES FOR PRINTING, INKING, DAMPING, OR THE LIKE; PREPARING SUCH SURFACES FOR USE AND CONSERVING THEM
- B41N2207/00—Location or type of the layers in shells for rollers of printing machines
- B41N2207/02—Top layers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41N—PRINTING PLATES OR FOILS; MATERIALS FOR SURFACES USED IN PRINTING MACHINES FOR PRINTING, INKING, DAMPING, OR THE LIKE; PREPARING SUCH SURFACES FOR USE AND CONSERVING THEM
- B41N2207/00—Location or type of the layers in shells for rollers of printing machines
- B41N2207/04—Intermediate layers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41N—PRINTING PLATES OR FOILS; MATERIALS FOR SURFACES USED IN PRINTING MACHINES FOR PRINTING, INKING, DAMPING, OR THE LIKE; PREPARING SUCH SURFACES FOR USE AND CONSERVING THEM
- B41N2207/00—Location or type of the layers in shells for rollers of printing machines
- B41N2207/10—Location or type of the layers in shells for rollers of printing machines characterised by inorganic compounds, e.g. pigments
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41N—PRINTING PLATES OR FOILS; MATERIALS FOR SURFACES USED IN PRINTING MACHINES FOR PRINTING, INKING, DAMPING, OR THE LIKE; PREPARING SUCH SURFACES FOR USE AND CONSERVING THEM
- B41N7/00—Shells for rollers of printing machines
Definitions
- the invention relates to a process for producing a non-stick coating on a substrate, a non-stick coating on a substrate and the use of a non-stick coating.
- Non-stick coatings are proposed in various compositions and a wide range of uses.
- the DE 199 20 180 A1 describes a classic use of a Teflon layer for a frying pan, wherein the coating agent in powder form dry, that is applied without solvent, and then sintered.
- Main constituents of the powder are polytetrafluoroethylene and polysiloxane.
- non-stick coatings in the field of medical prostheses discloses the EP 1 334 737 A2 , wherein as an alloying constituent of the non-stick layer titanium, silicon, another metal and oxygen are used.
- PTFE-based non-stick coatings are also from the DE 699 01 530 T2 or the DE 699 22 278 T2 known. In the former, a sintering temperature of 427 ° C is known and in the latter a minimum temperature of 350 ° C is required. With respect to PTFE- or fluorine-based non-stick coatings it has not been proven, at least in practice, that functional layers can be produced at sintering temperatures below 400 ° C.
- the DE 202 12 324 U1 describes a non-stick or easy-to-clean surface coating in which a network of metal oxide is formed and which may contain, as further constituents, a fluoroalkylsilane and nanoscale particles.
- the EP 1 163 871 A1 discloses home appliances such as frying pans with an adhesion reducing coating.
- a first coating with a layer thickness between 5 .mu.m and 20 .mu.m is applied to the substrate, are introduced in the deposits with a grain size> 10% of the layer thickness.
- the layer may be constructed in two parts and an additional cover layer of silicone material may be provided for sealing on the uppermost layer.
- a method for producing a highly effective non-stick coating is provided on a substrate, in which initially on the substrate, a primer layer is applied, which has deposits in powder or granular form.
- the grain size of Inclusions is preferably in a range of 5 to 70 microns, preferably from 10 to 50 microns or 10 to 40 microns.
- the particle size distribution within these ranges extends with a half width of ⁇ 15 ⁇ m, preferably ⁇ 5 ⁇ m.
- the narrower grain size distribution then favors anti-stick properties depending on the medium that comes in contact with the coated surface.
- a structuring of the subsequent surface is impressed, which particularly enhances the non-stick effect of the surface in direct contact with the medium.
- the main feature of the primer layer can focus on the function of mechanically stabilizing the powder or grain deposits in a crosslinked matrix and to achieve a good adhesion to the substrate.
- the maximum temperature used for all thermal treatments used in the coating is below the specified temperatures or temperature ranges.
- the maximum treatment temperature is at most 300 ° C, preferably at most 250 ° C or 230 ° C.
- a cover layer is then applied, which acts as a functional layer.
- these properties are scratch-resistant, abrasion-resistant, chemically resistant, temperature-resistant and / or etching-resistant. It is therefore not necessary that the primer layer already has this property itself.
- a thermal treatment for stabilizing the non-stick coating or the cover layer is carried out.
- the thermal treatment of the at least one cover layer is preferably carried out in a temperature range of 120 to 300 ° C, preferably in the narrower temperature range of 200 to 230 ° C. Particularly suitable has a temperature range of 230 to 250 ° C proved.
- a thermal treatment or sintering in this temperature range also allows the coating of otherwise temperature-sensitive plastic substrates, so that a significantly extended range of application of the coating results, for example, by molding tools, rollers, labeling rollers, guide rollers, rollers, feed chutes and other machine components are coatable.
- the coating for corresponding parts made of other materials such as metal is possible.
- Teflon or other fluorine-containing coatings can be sintered only on metallic substrates in a temperature range of 400 ° C to 450 ° C.
- the specified temperature ranges are also used, for example, with metallic or ceramic substrates, since this has no influence on the layer quality.
- Advantage is also in such substrates due to the relatively low temperatures faster heating and cooling and lower energy consumption.
- the proposed method has already proven itself in preliminary tests and the coating or the method are surprisingly suitable for fiber-reinforced plastic substrates, such as glass fiber or carbon fiber reinforced composite materials, in particular based on plastic.
- This property or suitability makes it possible, for example, to provide non-stick-coated injection molds, in particular injection-molded fiber-reinforced base molds such as e.g. CFK basis.
- the suitability of elastic substrates or substrates with an already existing, elastic surface layer has proven particularly unexpected. For example, a non-stick coating on elastomers such as rubber.
- the application of the at least one primer layer comprises the application of at least two primer layers.
- the primer layer (first primer layer) first applied to the substrate has an adhesion promoter function so that the entire applied layer adheres well to the substrate.
- the function of the non-stick coating is largely independent of the substrate material.
- the first primer layer and the second or the further primer layers may have an identical material composition, so that crosslinking between the first and the further primer layers is particularly favored.
- the first primer layer also has a balancing property, wherein a possibly existing surface structure of a substrate (for example scratch marks after sandblasting) are leveled or smoothed.
- the first primer layer pre-primer
- the compensation function a planar surface structure for applying the second or further primer layer is created so that a surface structure is determined almost exclusively by the nature of the second or further primer layer and their inclusions.
- an intermediate treatment is advantageously carried out after the application of the primer layer, after the application of the first primer layer and so on, which in particular serves for the tempering and / or drying for removing solvents and / or for stabilizing the layer already applied. Accordingly, in the case of a composite cover layer, such an intermediate treatment may take place after the application of each of the individual layers or a part of the individual layers.
- the intermediate treatment if an elevated temperature is necessary, performed below 300 ° C, preferably in a temperature range from 180 ° C to a maximum of 250 ° C.
- the intermediate treatment may also be a photoactivated or infrared-activated treatment which, in the case of the use of plastic layers, favors the crosslinking of the plastic compounds.
- the following annealing or drying processes are carried out at temperatures and reaction times, which avoids deliquescence of the further primer layers or the covering layer (s) deposited thereon.
- structuring by the primer layer with the inclusions is maintained up to the surface of the non-stick coating.
- the cover layer comprises at least a first and a second cover layer, so that a functional distribution of the cover layer properties is made possible.
- the cover layer preferably has a scratch, chemical and / or abrasion-resistant property.
- the cover layer applied directly to the uppermost primer layer acts as an adhesion promoter and stabilizer between the outermost cover layer and the last primer layer.
- the cover layers are not PTFE layers, more preferably all layers contain no PTFE.
- the upper (ie the outer layers) or all layers of the non-stick coating made of fluorine-free starting materials so that on the one hand an environmental burden in the production of non-stick coating is reduced or not present and on the other hand allows the use of non-stick coating in the food industry and in the medical field becomes.
- the omission of fluorine-containing compounds favors the need for sintering at high temperature, so that the above-described sintering and annealing processes in the described low temperature range are executable.
- the cover layers (at least the uppermost layer) completely or at least cover or cover at least more than 80%, preferably more than 90% or 95%.
- the primer layer, the first primer layer and / or the second primer layer on a resin former and a curing agent in particular one, two or more silicone, silicate and / or epoxy based components.
- epoxide is preferably not used as the basis of the component (s), so that the primer layer (s) are epoxy-free.
- cover layer (s) so that the cover layer (s) are epoxy-free.
- the uniformity of the composition increases.
- operator errors during application are largely ruled out since the composition of the mixture is much easier and more reproducible to control than a mixing process during the application of a single layer.
- the composition of the cover layer or of the cover layers and the subsequent treatment is selected such that the surface structure caused by the incorporation in the primer layer is retained.
- this is ensured by the composition and size of the starting substances and the admixing of solvents, on the one hand a uniformly thick wetting of the previously formed layer is achieved and on the other hand, a deliquescence of the applied layer during annealing or drying does not take place.
- Fig.1 schematically shows a cross section through a non-stick coating 5 on a substrate 10. The proportions shown are not to scale but serve to illustrate the layer sequence and layer composition.
- the high-performance non-stick coating 5 is composed of a primer 20 which is applied directly to the substrate 10 and a cover layer 30 on the primer 20.
- the layer is composed of a pre-primer 22 and a main primer 24.
- the pre-primer 22 also has a smoothing effect, wherein the rough surface of the substrate 10 is smoothed by means of the pre-primer 22.
- the surface smoothing is achieved, for example, by carrying out an annealing at elevated temperature (but a temperature preferably below 300 ° C.) and extended exposure time after deposition of the pre-primer mixture.
- the main primer 24 is then deposited, which has embedded in a matrix 26 particles 28.
- the particles 28 are mixed in powder form in the starting material of the matrix 26.
- the particle size varies statistically within a predetermined range and the material of the particles 28 may consist of a starting substance, two starting substances or a mixture of a plurality of starting substances.
- the surface of the main primer 24 is imparted a surface structure that favors the anti-adhesion effect extremely.
- the function of the matrix material 26 is to provide adhesion to the pre-primer 22 (or to the substrate 10 if the pre-primer 22 is not necessary) and to mechanically stabilize and retain the embedded particles 28.
- the duration and temperature of any thermal treatments (see below) of the main primer 24 and subsequently deposited layers are chosen so as to avoid softening and deliquescence of the already deposited layered materials.
- the surface structure of the main primer 24 is substantially retained in subsequently deposited layers.
- the pre-primer layer 22 may comprise a plurality of layer layers and / or the main primer layer may be formed of multiple layers and / or further primer layers may be deposited on the main primer layer 24.
- the cover layer 30 is likewise composed of two layer layers, namely an intermediate cover layer 32 and a main cover layer 34.
- the intermediate cover layer 32 acts as a primer and matching layer between the surface of the uppermost primer layer (here the main primer layer 24) and the subsequently deposited main cover layer 34.
- 34 imparts a desired surface property to the entire non-stick coating, such as corrosion resistance, chemical resistance, solvent resistance, abrasion resistance, scratch resistance, temperature resistance, and the like. If the main capping layer 34 itself already has good adhesion and bonding properties to the uppermost primer layer (here main primer 24), the intermediate capping layer 32 may also be omitted.
- the intermediate cover layer 32 may be formed of a plurality of layers and / or the main cover layer 34 comprise a plurality of layers, for example, introduce successively different surface functions.
- a lower, abrasion-resistant main topsheet and an upper (e.g., chemically resistant) non-stick main topsheet may be formed of a plurality of layers and / or the main cover layer 34 comprise a plurality of layers, for example, introduce successively different surface functions.
- Fig. 2 schematically illustrates the basic building blocks for forming the non-stick coating 5 (left side) and additional process options, which are carried out depending on the substrate properties and desired surface properties of the non-stick coating 5 (right side of Fig. 2 ).
- the process options relate to the basic layer method, in which only the main primer 24 and the main top layer 34 are deposited, the option to obtain a layer sequence as in FIG Fig. 1 shown.
- additional layer deposition steps are incorporated into the process.
- a substrate pretreatment is carried out, such as, for example, sandblasting of the surface, etching of the surface or solvent cleaning.
- the starting mixture for the main primer 24 is deposited.
- This is then dried (if, for example, solvents are present in the starting mixture) or pre-tempered, so that the matrix 28 stabilizing the inclusions 28 is at least partially cured or the solvent is at least partially expelled.
- the drying / pre-annealing step can be omitted if the applied layer itself already has sufficient stability to maintain its surface structure also in the subsequent steps.
- the main primer layer 34 is applied to the main primer 24, which is stabilized in a subsequent sintering process.
- the sintering temperature and duration is selected so that the main primer 24 and the stabilizing matrix 26 are also further cured and stabilized while the temperature and duration however, are kept so low that softening and deliquescence of the matrix 26 and the main top layer 34 are prevented.
- the pretreated primer 22 is first applied to the treated or untreated substrate, which is optionally also dried or pre-baked. Thereafter, the main primer layer 24 is applied as described. Additionally or alternatively, after the application of the main primer 24 (with or without dry / pre-tempering process), the intermediate cover layer 32 may be applied to which then the main cover layer 34 is applied as described, with or without an intermediate dry / pre-temper process.
- the individual tempering steps are below 300 ° C., advantageously below 250 or 230 ° C., so that the coating is suitable not only for metal, ceramic and glass substrates but also for plastic substrates.
- the sintering or drying time can be in the time range between 20 and 40 minutes. The sintering takes place for example at 220 ° C for 25 minutes. The intermediate sintering / drying can also be done at 220 ° C for 25 minutes.
- the above table shows an example of the composition of the individual layers, wherein the pre-primer and / or the intermediate cover layer 32 are optional are.
- the examples given for the individual components can be used individually, several of them or in total as a mixture.
- a ceramic such as silicon carbide, boron nitride, silicon, alumina, and / or diamond-like carbon
- metal, silicate, or glass may be used singly or selected ones mixed together. Particularly advantageous results have resulted from the use of ceramic inclusions.
- the or the cover layers is a mixture of silicone and epoxy resin.
- non-stick coating are tools such as rollers, labeling rollers, guide rollers, rollers, hoppers and feed chutes, and other machine components.
- the coating was successfully used as an inner coating of suction tubes. Self-adhesive scraps of paper were sucked off through the tubes coated in this way and it was only possible by using this coating that the chips did not adhere. All other coatings did not work.
- the coating was successfully used on separating knife.
- the cutting blades for the production of rubber seals were first coated with tungsten carbide. Subsequently, the coating was carried out with the non-stick coating described in detail above. It has been shown that the relatively sticky rubber seals fall off the knife more easily. Other types of coatings failed here.
- coating aluminum plate, aluminum roller, aluminum workpiece carrier for gaskets, drive roller, wire belt pattern, EPDM pressure roller, drum clamp, fixing bar set, flat blade, wax crayon mold, lamination bar, glue container, glue pot, knife set, crimping tool, prism, spinner roll squeegee, rings, scraper blade / scraper blade, pusher bar set, welding bar, welding mirror, steel Vulcanization mandrels, steel roller, tank trough, heat exchanger, shaft or roller segments.
Description
Die Erfindung betrifft ein Verfahren zur Herstellung einer Antihaftbeschichtung auf einem Substrat, eine Antihaftbeschichtung auf einem Substrat und die verwendung einer Antihaftbeschichtung.The invention relates to a process for producing a non-stick coating on a substrate, a non-stick coating on a substrate and the use of a non-stick coating.
Antihaftbeschichtungen werden in verschiedenen Zusammensetzungen und einem großen Spektrum von Verwendungen vorgeschlagen. Die
Die Verwendung von Antihaftbeschichtungen im Bereich der medizinaltechnischen Prothesen offenbart die
PTFE-basierende Antihaftbeschichtungen sind auch aus der
Die
In der
Die
Es ist Aufgabe der Erfindung, ein Verfahren zur Herstellung einer Antihaftbeschichtung und eine Antihaftbeschichtung sowie deren Verwendung vorzusehen, wobei die Antihaftbeschichtung hochwirksam auch gegen ein Anhaften besonders klebfähiger Klebstoffe geeignet ist, die insbesondere auf ein breites Spektrum von Substratmaterialien applizierbar ist.It is an object of the invention to provide a method for producing a non-stick coating and a non-stick coating and their use, wherein the non-stick coating is highly effective against adhesion of particularly tacky adhesives, which is particularly applicable to a wide range of substrate materials.
Diese Aufgabe wird mit den Merkmalen des Anspruchs 1, 10, 24 bzw. 25 gelöst. Vorteilhafte Ausgestaltungen sind Gegenstand von Unteransprüchen.This object is achieved with the features of
Gemäß Anspruch 1 wird ein Verfahren zur Herstellung einer hochwirksamen Antihaftbeschichtung auf einem Substrat bereitgestellt, bei dem zunächst auf das Substrat eine Primerschicht aufgebracht wird, die Einlagerungen in Pulver- bzw. Kornform aufweist. Die Korngröße der Einlagerungen liegt vorzugsweise in einem Bereich von 5 bis 70 µm, vorzugsweise von 10 bis 50 µm oder 10 bis 40 µm. Vorzugsweise erstreckt sich die Korngrößenverteilung innerhalb dieser Bereiche mit einer Halbwertsbreite von ≤ 15 µm, vorzugsweise von ≤ 5 µm. Die engere Verteilung der Korngröße begünstigt dann die Antihafteigenschaften in Abhängigkeit von dem Medium, das mit der beschichteten Oberfläche in Kontakt kommt. Durch diese Primerschicht wird eine Strukturierung der späteren Oberfläche aufgeprägt, die die Antihaftwirkung der mit dem Medium in direkten Kontakt stehenden Oberfläche besonders verstärkt. Die Haupteigenschaft der Primerschicht kann sich dabei auf die Funktion konzentrieren, die Pulver- bzw. Korneinlagerungen in einer vernetzten Matrix mechanisch zu stabilisieren und eine gute Haftwirkung gegenüber dem Substrat zu erzielen.According to claim 1, a method for producing a highly effective non-stick coating is provided on a substrate, in which initially on the substrate, a primer layer is applied, which has deposits in powder or granular form. The grain size of Inclusions is preferably in a range of 5 to 70 microns, preferably from 10 to 50 microns or 10 to 40 microns. Preferably, the particle size distribution within these ranges extends with a half width of ≦ 15 μm, preferably ≦ 5 μm. The narrower grain size distribution then favors anti-stick properties depending on the medium that comes in contact with the coated surface. By means of this primer layer, a structuring of the subsequent surface is impressed, which particularly enhances the non-stick effect of the surface in direct contact with the medium. The main feature of the primer layer can focus on the function of mechanically stabilizing the powder or grain deposits in a crosslinked matrix and to achieve a good adhesion to the substrate.
Die maximal verwendete Temperatur für alle bei der Beschichtung verwendeten thermischen Behandlungen liegt unter den angegebenen Temperaturen bzw. Temperaturbereichen. Beispielsweise ist die maximale Behandlungstemperatur maximal 300°C, vorzugsweise maximal 250°C oder 230°C.The maximum temperature used for all thermal treatments used in the coating is below the specified temperatures or temperature ranges. For example, the maximum treatment temperature is at most 300 ° C, preferably at most 250 ° C or 230 ° C.
Auf die zumindest eine Primerschicht wird anschließend eine Deckschicht aufgebracht, die als Funktionsschicht wirkt. Diese verleiht der Gesamtbeschichtung die für die Berührung mit dem kontaktierenden Medium notwendige Eigenschaft. Neben der Antihafteigenschaft der Deckschicht als Funktionsschicht sind dies Eigenschaften wie kratzfest, abriebfest, chemisch resistent, temperaturbeständig und/oder ätzfest. Es ist daher nicht notwendig, dass die Primerschicht bereits diese Eigenschaft selbst aufweist.On the at least one primer layer, a cover layer is then applied, which acts as a functional layer. This gives the overall coating the necessary property for contact with the contacting medium. In addition to the non-stick property of the cover layer as a functional layer, these properties are scratch-resistant, abrasion-resistant, chemically resistant, temperature-resistant and / or etching-resistant. It is therefore not necessary that the primer layer already has this property itself.
Zumindest nach dem Aufbringen der zumindest einen Deckschicht wird eine thermische Behandlung zur Stabilisierung der Antihaftbeschichtung bzw. der Deckschicht durchgeführt.At least after the application of the at least one cover layer, a thermal treatment for stabilizing the non-stick coating or the cover layer is carried out.
Versuche mit der Beschichtung haben ergeben, dass diese einen hochwirksamen Antihafteffekt hat, der die Beschichtung besonders für die Verarbeitung von Heißkleber, Powerkleberetiketten und -Bänder einsetzbar macht.Tests with the coating have shown that this has a highly effective non-stick effect, which is the Especially suitable for processing hot glue, power adhesive labels and tapes.
Die thermische Behandlung der zumindest einen Deckschicht erfolgt vorzugsweise in einem Temperaturbereich von 120 bis 300°C vorzugsweise im engeren Temperaturbereich von 200 bis 230°C. Als besonders geeignet hat sich ein Temperaturbereich von 230 bis 250°C erwiesen. Eine thermische Behandlung bzw. ein Sintern in diesem Temperaturbereich ermöglicht auch die Beschichtung von ansonsten temperaturempfindlichen Kunststoffsubstraten, so dass sich ein erheblich erweiterter Einsatzbereich der Beschichtung ergibt, indem beispielsweise Formwerkzeuge, Walzen, Etikettierwalzen, Umlenkwalzen, Rollen, Zufuhrrinnen und andere Maschinenbauteile damit beschichtbar sind. Natürlich ist die Beschichtung für entsprechende Teile aus anderen Materialien wie Metall möglich. Im Vergleich dazu lassen sich Teflon oder andere fluorhaltige Beschichtungen nur auf metallischen Substraten in einem Temperaturbereich von 400°C bis 450°C sintern. Die angegebenen Temperaturbereiche werden z.B. auch bei metallischen oder keramischen Substraten verwendet, da dies auf die Schichtqualität keinen Einfluss hat. Vorteil ist auch bei solchen Substraten aufgrund der vergleichsweise geringen Temperaturen ein schnelleres Aufheizen und Abkühlen sowie ein geringerer Energieverbrauch.The thermal treatment of the at least one cover layer is preferably carried out in a temperature range of 120 to 300 ° C, preferably in the narrower temperature range of 200 to 230 ° C. Particularly suitable has a temperature range of 230 to 250 ° C proved. A thermal treatment or sintering in this temperature range also allows the coating of otherwise temperature-sensitive plastic substrates, so that a significantly extended range of application of the coating results, for example, by molding tools, rollers, labeling rollers, guide rollers, rollers, feed chutes and other machine components are coatable. Of course, the coating for corresponding parts made of other materials such as metal is possible. In comparison, Teflon or other fluorine-containing coatings can be sintered only on metallic substrates in a temperature range of 400 ° C to 450 ° C. The specified temperature ranges are also used, for example, with metallic or ceramic substrates, since this has no influence on the layer quality. Advantage is also in such substrates due to the relatively low temperatures faster heating and cooling and lower energy consumption.
Das vorgeschlagene Verfahren hat sich in Vorversuchen bereits bewährt und die Beschichtung bzw. das Verfahren eignen sich überraschend auch für faserverstärkte Kunststoffsubstrate, wie glasfaser- oder kohlefaserverstärkte Verbundwerkstoffe, insbesondere auf Kunststoffbasis. Diese Eigenschaft bzw. Eignung erlaubt es beispielsweise antihaftbeschichtete Spritzgussformen vorzusehen, insbesondere Spritzgussformen auf faserverstärkter Basis wie z.B. CFK-Basis. Besonders unerwartet hat sich die Eignung bei elastischen Substraten oder Substraten mit bereits vorhandener, elastischer Oberflächenschicht erwiesen. Beispielsweise eine Antihaftbeschichtung auf Elastomeren wie Gummi.The proposed method has already proven itself in preliminary tests and the coating or the method are surprisingly suitable for fiber-reinforced plastic substrates, such as glass fiber or carbon fiber reinforced composite materials, in particular based on plastic. This property or suitability makes it possible, for example, to provide non-stick-coated injection molds, in particular injection-molded fiber-reinforced base molds such as e.g. CFK basis. The suitability of elastic substrates or substrates with an already existing, elastic surface layer has proven particularly unexpected. For example, a non-stick coating on elastomers such as rubber.
Durch die Beschichtung mit der Antihaftschicht werden beispielsweise auch "billige" Metallsubstrate (Bleche, Gußformen etc.) aufgewertet. Diese Substrate sind korrosions- und/oder chemisch-beständig, wenn die Stellen des Substrats die mit den aggressiven Medien in Berührung kommen, mit der Antihaftschicht überzogen sind. Es eröffnen sich dadurch neue Anwendungen für Materialen, die in diesen Bereichen ausgeschlossen sind, beispielsweise für den Einsatz von Baustahl-, Messing- oder Messinglegierung-Substraten.By coating with the non-stick layer, for example, "cheap" metal substrates (sheets, molds, etc.) are also upgraded. These substrates are corrosion and / or chemical resistant when the sites of the substrate in contact with the aggressive media are coated with the release coating. This opens up new applications for materials that are excluded in these areas, for example for the use of structural steel, brass or brass alloy substrates.
Ganz besonders vorteilhaft umfasst das Aufbringen der zumindest einen Primerschicht das Aufbringen von zumindest zwei Primerschichten. Dadurch bietet sich eine funktionelle Aufteilung der zumindest zwei Primerschichten, wobei vorteilhaft die zuerst auf dem Substrat aufgetragene Primerschicht (erste Primerschicht) eine Haftvermittlerfunktion hat, so dass die gesamte aufgetragene Schicht gut auf dem Substrat haftet. Hierdurch ist ebenfalls gewährleistet, dass eine weitgehende Unabhängigkeit der Funktion der Antihaftbeschichtung vom Substratmaterial besteht. In vorteilhafter Ausgestaltung enthält dann lediglich die zweite Primerschicht bzw. enthalten die darauf folgenden Primerschichten die Einlagerungen in Korn- bzw. Pulverform. Da somit die erste Primerschicht frei von Einlagerungen ist, wird eine gleichmäßige, flächendeckende Beschichtung der Substratoberfläche und somit eine Hafterhöhung erreicht. Abgesehen von den Einlagerungen können die erste Primerschicht und die zweite bzw. die weiteren Primerschichten eine identische Materialzusammensetzung aufweisen, so dass auch eine Vernetzung zwischen der ersten und den weiteren Primerschichten besonders begünstigt ist.Very particularly advantageously, the application of the at least one primer layer comprises the application of at least two primer layers. This provides a functional distribution of the at least two primer layers, wherein advantageously the primer layer (first primer layer) first applied to the substrate has an adhesion promoter function so that the entire applied layer adheres well to the substrate. This is also true ensures that the function of the non-stick coating is largely independent of the substrate material. In an advantageous embodiment, then contains only the second primer layer or contain the subsequent primer layers, the deposits in grain or powder form. Thus, since the first primer layer is free of inclusions, a uniform, nationwide coating of the substrate surface and thus a Hafterhöhung is achieved. Apart from the inclusions, the first primer layer and the second or the further primer layers may have an identical material composition, so that crosslinking between the first and the further primer layers is particularly favored.
Vorteilhaft weist die erste Primerschicht neben der Haftvermittlereigenschaft auch eine Ausgleichseigenschaft auf, wobei eine möglicherweise vorhandene Oberflächenstruktur eines Substrats (beispielsweise Kratzspuren nach dem Sandstrahlen) nivelliert bzw. geglättet werden. Beispielsweise wird die erste Primerschicht (Vorprimer) dazu verwendet, Lunker, die in Gussbauteilen vorhanden sein können, zu verschließen, so dass sich die Fehlstelle nicht durch die Schichtfolge hindurch fortsetzt und so auf der Schichtoberfläche der Antihaftbeschichtung eine Fehlstelle hervorruft. Durch die Ausgleichsfunktion wird eine ebene Oberflächenstruktur zum Aufbringen der zweiten bzw. weiteren Primerschicht geschaffen, so dass eine Oberflächenstruktur nahezu ausschließlich durch die Beschaffenheit der zweiten bzw. weiteren Primerschicht und deren Einlagerungen bestimmt ist.Advantageously, in addition to the primer property, the first primer layer also has a balancing property, wherein a possibly existing surface structure of a substrate (for example scratch marks after sandblasting) are leveled or smoothed. For example, the first primer layer (pre-primer) is used to seal voids which may be present in cast components, so that the defect does not continue through the layer sequence, thus causing a defect on the layer surface of the non-stick coating. By the compensation function, a planar surface structure for applying the second or further primer layer is created so that a surface structure is determined almost exclusively by the nature of the second or further primer layer and their inclusions.
Beim Aufbringen der Schichten wird vorteilhaft nach dem Aufbringen der Primerschicht, nach dem Aufbringen der ersten Primerschicht und so weiter eine Zwischenbehandlung ausgeführt, die insbesondere das Tempern und/oder Trocknen zum Entfernen von Lösungsmitteln und/oder dem Stabilisieren der bereits aufgebrachten Schicht dient. Entsprechend kann bei einer zusammengesetzten Deckschicht eine solche Zwischenbehandlung nach dem Aufbringen jeder der Einzelschichten oder eines Teils der Einzelschichten erfolgen. Auch hier wird die Zwischenbehandlung, soweit eine erhöhte Temperatur notwendig ist, unterhalb von 300°C durchgeführt, vorzugsweise in einem Temperaturbereich von 180°C bis maximal 250°C. Neben dem Tempern oder Trocknen kann die Zwischenbehandlung auch eine fotoaktivierte oder infrarotaktivierte Behandlung sein, die im Falle der Verwendung von Kunststoffschichten das Vernetzen der Kunststoffverbindungen begünstigt.When the layers are applied, an intermediate treatment is advantageously carried out after the application of the primer layer, after the application of the first primer layer and so on, which in particular serves for the tempering and / or drying for removing solvents and / or for stabilizing the layer already applied. Accordingly, in the case of a composite cover layer, such an intermediate treatment may take place after the application of each of the individual layers or a part of the individual layers. Again, the intermediate treatment, if an elevated temperature is necessary, performed below 300 ° C, preferably in a temperature range from 180 ° C to a maximum of 250 ° C. In addition to the annealing or drying, the intermediate treatment may also be a photoactivated or infrared-activated treatment which, in the case of the use of plastic layers, favors the crosslinking of the plastic compounds.
Vorzugsweise werden nach dem Aufbringen der Primerschicht mit deren Einlagerungen die folgenden Temper- bzw. Trocknungsprozesse bei Temperaturen und Einwirkzeiten durchgeführt, die ein Zerfließen der weiteren Primerschichten bzw. der darauf abgeschiedenen Deckschicht(en) vermeidet. So wird bis zur Oberfläche der Antihaftbeschichtung die Strukturierung durch die Primerschicht mit den Einlagerungen aufrechterhalten.Preferably, after the application of the primer layer with its intercalations, the following annealing or drying processes are carried out at temperatures and reaction times, which avoids deliquescence of the further primer layers or the covering layer (s) deposited thereon. Thus, structuring by the primer layer with the inclusions is maintained up to the surface of the non-stick coating.
Ganz besonders vorteilhaft umfasst die Deckschicht zumindest eine erste und eine zweite Deckschicht, so dass eine funktionelle Aufteilung der Deckschichteigenschaften ermöglicht wird. Wie oben beschrieben, ist durch die Struktur der Primerschicht der Anti-Hafteffekt der Deckschicht verstärkt und zusätzlich weist die oberste Deckschicht bevorzugt eine kratz-, chemie- und/oder abriebbeständige Eigenschaft auf. Wobei die unmittelbar auf die oberste Primerschicht aufgebrachte Deckschicht als Haftvermittler und Stabilisator zwischen der äußersten Deckschicht und der letzten Primerschicht wirkt.Most preferably, the cover layer comprises at least a first and a second cover layer, so that a functional distribution of the cover layer properties is made possible. As described above, by the structure of the primer layer, the anti-adhesive effect of the cover layer is enhanced, and in addition, the uppermost layer has Cover layer preferably has a scratch, chemical and / or abrasion-resistant property. Wherein the cover layer applied directly to the uppermost primer layer acts as an adhesion promoter and stabilizer between the outermost cover layer and the last primer layer.
Vorzugsweise sind die Deckschichten keine PTFE-Schichten, noch vorteilhafter enthalten alle Schichten kein PTFE. Vorteilhaft sind die oberen (d.h. die Deckschichten) oder alle Schichten der Antihaftbeschichtung aus Fluor-freien Ausgangsstoffen hergestellt, so dass einerseits eine Umweltbelastung bei der Herstellung der Antihaftbeschichtung vermindert bzw. nicht vorhanden ist und andererseits der Einsatz der Antihaftbeschichtung im Lebensmittelbereich sowie im medizinischen Bereich ermöglicht wird. Weiterhin begünstigt der Verzicht auf fluorhaltige Verbindungen die Notwendigkeit des Sinterns bei hoher Temperatur, so dass die oben beschriebenen Sinter- und Tempervorgänge im beschriebenen niedrigen Temperaturbereich ausführbar sind.Preferably, the cover layers are not PTFE layers, more preferably all layers contain no PTFE. Advantageously, the upper (ie the outer layers) or all layers of the non-stick coating made of fluorine-free starting materials, so that on the one hand an environmental burden in the production of non-stick coating is reduced or not present and on the other hand allows the use of non-stick coating in the food industry and in the medical field becomes. Furthermore, the omission of fluorine-containing compounds favors the need for sintering at high temperature, so that the above-described sintering and annealing processes in the described low temperature range are executable.
Ganz besonders vorteilhaft bedeckt oder bedecken die Deckschichten (zumindest die oberste) die Einlagerung vollständig oder zumindest zu mehr als 80%, vorzugsweise zu mehr als 90% oder 95%. Einerseits ergibt sich dadurch eine (möglichst) geschlossene Deckschicht mit homogener Oberflächeneigenschaft und andererseits wird die Einbindung der Einlagerungen in die Primerschicht zusätzlich mechanisch unterstützt und stabilisiert.In a particularly advantageous manner, the cover layers (at least the uppermost layer) completely or at least cover or cover at least more than 80%, preferably more than 90% or 95%. On the one hand, this results in a (preferably) closed covering layer with a homogeneous surface property, and on the other hand, the incorporation of the inclusions in the primer layer is additionally mechanically supported and stabilized.
Vorteilhaft weisen die Primerschicht, die erste Primerschicht und/oder die zweite Primerschicht einen Harzbildner und einen Härter auf, insbesondere eine, zwei oder mehr Komponenten auf Silikon-, Silikat- und/oder Epoxidbasis. In weiterer Ausgestaltung wird vorzugsweise als Basis der Komponente(n) nicht Epoxid verwendet, so dass die Primerschicht(en) Epoxid-frei sind. Dies gilt in alternativer oder kombinierter Ausgestaltung auch für die Deckschicht(en), so dass die Deckschicht(en) Epoxid-frei sind.Advantageously, the primer layer, the first primer layer and / or the second primer layer on a resin former and a curing agent, in particular one, two or more silicone, silicate and / or epoxy based components. In a further embodiment, epoxide is preferably not used as the basis of the component (s), so that the primer layer (s) are epoxy-free. This applies in an alternative or combined embodiment also for the cover layer (s), so that the cover layer (s) are epoxy-free.
Liegen eine, mehrere oder alle der Einzelschichten der Antihaftbeschichtung als vorgefertigtes Gemisch zum Auftragen vor, so erhöht sich die Gleichmäßigkeit der Zusammensetzung. Zusätzlich werden Bedienungsfehler beim Auftragen weitgehend ausgeschlossen, da die Zusammensetzung der Mischung wesentlich einfacher und reproduzierbarer zu kontrollieren ist als ein Mischungsvorgang während des Auftragens einer einzelnen Schicht.If one, several or all of the individual layers of the non-stick coating are present as a prefabricated mixture for application, the uniformity of the composition increases. In addition, operator errors during application are largely ruled out since the composition of the mixture is much easier and more reproducible to control than a mixing process during the application of a single layer.
Ganz besonders vorteilhaft ist die Zusammensetzung der Deckschicht bzw. der Deckschichten und der anschließenden Behandlung (Temperatur/Zeit) so gewählt, dass die durch die Einlagerung in der Primerschicht hervorgerufene Oberflächenstruktur beibehalten wird. Beispielsweise wird dies über die Zusammensetzung und Größe der Ausgangssubstanzen sowie das Beimischen von Lösungsmitteln gewährleistet, wobei einerseits eine gleichmäßig dicke Benetzung der zuvor ausgebildeten Schicht erreicht wird und andererseits ein Zerfließen der aufgetragenen Schicht beim Tempern bzw. Trocknen nicht stattfindet.Most preferably, the composition of the cover layer or of the cover layers and the subsequent treatment (temperature / time) is selected such that the surface structure caused by the incorporation in the primer layer is retained. For example, this is ensured by the composition and size of the starting substances and the admixing of solvents, on the one hand a uniformly thick wetting of the previously formed layer is achieved and on the other hand, a deliquescence of the applied layer during annealing or drying does not take place.
Weitere vorteilhafte Ausgestaltungen, die für das Verfahren und ggf. für die Beschichtung, ein Ausgangsgemisch (Anspruch 25 ; Stoffe für die Schicht sind entsprechend Gemischbestandteile) oder ein Werkzeug als solche in allen Ausgestaltungen entsprechend zutreffen, sind:
- Vorteilhaft erfolgt das Auftragen der zumindest einen Primerschicht (20, 22, 24) und/oder der zumindest einen Deckschicht (30, 32, 34) mittels Sprühen.
- Vorteilhaft wird vor dem Aufbringen der zumindest einen Primerschicht (20) zumindest die zu beschichtende Oberfläche des Substrats (10) gereinigt. Hierbei umfasst das Reinigen vorzugsweise eine Sandstrahlbehandlung des Substrats (10).
- Vorteilhaft werden die zumindest eine Primerschicht (20, 22, 24) und/oder die zumindest eine Deckschicht (30, 32, 34) als vorgefertigtes Gemisch aufgetragen, insbesondere als Emulsion aufgetragen.
- Vorteilhaft weist die Primerschicht (20), insbesondere die erste Primerschicht (22) und/oder die zweite Primerschicht (24), beim Aufbringen zusätzlich ein Lösungsmittel auf.
- Vorteilhaft weist die Deckschicht (30), insbesondere die erste Deckschicht (32) und/oder die zweite Deckschicht (34), beim Aufbringen zusätzlich ein Lösungsmittel auf.
- Vorteilhaft ist die Antihaftbeschichtung (5) Lebensmittel-konform, insbesondere sind sowohl die Primerschicht(en) (20, 22, 24) als auch die Deckschicht(en) (30, 32, 34) Fluor- oder PTFE-frei.
- Vorteilhaft weist bei der Antihaftbeschichtung oder beim Verfahren die Deckschicht (30) oder die erste Deckschicht (32) zusätzlich Additive im Gewichtsbereich kleiner gleich 10% auf, vorzugsweise kleiner gleich 5%.
- Vorteilhaft weist die Deckschicht (30), die erste Deckschicht (32) und/oder die zweite Deckschicht (34) bei der Antihaftbeschichtung oder bei dem Verfahren ein Vernetzungsmittel auf, insbesondere mit einem Gewichtsanteil im Bereich von 3 bis 40%, vorzugsweise
im Bereich von 5bis 30% oder 5bis 20%.
- Advantageously, the application of the at least one primer layer (20, 22, 24) and / or the at least one cover layer (30, 32, 34) takes place by means of spraying.
- Advantageously, at least the surface of the substrate (10) to be coated is cleaned prior to the application of the at least one primer layer (20). In this case, the cleaning preferably comprises a sandblasting treatment of the substrate (10).
- The at least one primer layer (20, 22, 24) and / or the at least one cover layer (30, 32, 34) are advantageously applied as a prefabricated mixture, in particular applied as an emulsion.
- Advantageously, the primer layer (20), in particular the first primer layer (22) and / or the second primer layer (24), additionally comprises a solvent during application.
- Advantageously, the cover layer (30), in particular the first cover layer (32) and / or the second cover layer (34), additionally comprises a solvent during application.
- Advantageously, the non-stick coating (5) is food-compliant, in particular both the primer layer (s) (20, 22, 24) and the cover layer (s) (30, 32, 34) are fluorine- or PTFE-free.
- Advantageously, in the non-stick coating or in the process, the cover layer (30) or the first cover layer (32) additionally has additives in the weight range less than or equal to 10%, preferably less than or equal to 5%.
- Advantageously, the cover layer (30), the first cover layer (32) and / or the second cover layer (34) in the non-stick coating or in the method, a crosslinking agent, in particular with a weight fraction in the range of 3 to 40%, preferably in the range of 5 to 30% or 5 to 20%.
Bezüglich der Antihaftbeschichtung, der Beschichtung von Werkzeugen oder Substraten mit der Antihaftbeschichtung und der Bereitstellung von Ausgangsgemischen zur Herstellung der Bestandteile der Antihaftbeschichtung trifft das oben Gesagte entsprechend zu.With respect to the non-stick coating, the coating of tools or substrates with the non-stick coating and the provision of starting mixtures for the preparation of the components of the non-stick coating, the above applies accordingly.
Anhand von Figuren werden Ausführungsbeispiele der Erfindung näher erläutert. Es zeigen:
- Fig. 1
- eine schematische Darstellung einer Antihaftbeschichtung auf einem Substrat im Querschnitt, und
- Fig.2
- einzelne Schritte des Herstellungsverfahrens einer Antihaftbeschichtung.
- Fig. 1
- a schematic representation of a non-stick coating on a substrate in cross section, and
- Fig.2
- individual steps of the production process of a non-stick coating.
Wie in
Auf dem Vorprimer 22 ist dann der Hauptprimer 24 abgeschieden, der in eine Matrix 26 eingebettete Partikel 28 aufweist. Beim Aufbringen sind die Partikel 28 in Pulverform in das Ausgangsmaterial der Matrix 26 eingemischt. Die Partikelgröße variiert innerhalb eines vorgegebenen Bereichs statistisch und das Material der Partikel 28 kann aus einer Ausgangssubstanz, zwei Ausgangssubstanzen oder einem Gemisch von mehreren Ausgangssubstanzen bestehen. Durch die eingelagerten Partikel 28 wird der Oberfläche des Hauptprimers 24 eine Oberflächenstruktur aufgeprägt, die die Antihaftwirkung extrem begünstigt. Die Funktion des Matrixmaterials 26 ist die Herstellung der Haftung zum Vorprimer 22 (oder zum Substrat 10, falls der Vorprimer 22 nicht notwendig ist) und das mechanische Stabilisieren und Festhalten der eingelagerten Partikel 28.On the pre-primer 22, the
Dauer und Temperatur von ggf. durchgeführten thermischen Behandlungen (siehe unten) des Hauptprimers 24 und anschließend abgeschiedener Schichten sind so gewählt, dass ein Aufweichen und Zerfließen der bereits abgeschiedenen Schichtmaterialien vermieden wird. So bleibt die Oberflächenstruktur des Hauptprimers 24 bei nachfolgend abgeschiedenen Schichten im wesentlichen erhalten.The duration and temperature of any thermal treatments (see below) of the
In weiterer, nicht dargestellter Ausführung kann die Vorprimerschicht 22 mehrere Schichtlagen umfassen und/oder die Hauptprimerschicht aus mehreren Lagen gebildet sein und/oder weitere Primerschichten auf der Hauptprimerschicht 24 abgeschieden werden.In a further, unillustrated embodiment, the
In dem in
In weiterer, nicht dargestellter Ausführung kann die Zwischendeckschicht 32 aus mehreren Lagen ausgebildet sein und/oder die Hauptdeckschicht 34 mehrere Lagen umfassen, die beispielsweise nacheinander verschiedene Oberflächenfunktionen einbringen. Beispielsweise eine untere, abriebfeste Hauptdeckschicht und eine obere (z.B. auch chemieresistente) Antihaft-Hauptdeckschicht.In a further, not shown embodiment, the
Beim Grundverfahren der
Anschließend wird auf den Hauptprimer 24 die Hauptdeckschicht 34 aufgebracht, die in einem anschließenden Sinterprozess stabilisiert wird. Dabei ist die Sintertemperatur und -dauer so gewählt, dass der Hauptprimer 24 bzw. die stabilisierende Matrix 26 auch weiter ausgehärtet und stabilisiert werden, während die Temperatur und Dauer jedoch so niedrig gehalten sind, dass ein Aufweichen und Zerfließen der Matrix 26 und der Hauptdeckschicht 34 verhindert werden.Subsequently, the
Auf der rechten Seite der
Die einzelnen Temperschritte liegen unterhalb von 300°C, vorteilhaft unterhalb 250 bzw. 230°C, so dass die Beschichtung neben Metall-, Keramik- und Glassubstraten auch für Kunststoffsubstrate geeignet ist. Die Sinter- bzw. Trocknungsdauer kann im Zeitbereich zwischen 20 und 40 Minuten liegen. Das Einsintern erfolgt beispielsweise bei 220°C für 25 Minuten. Das Zwischensintern/Trocknen kann ebenfalls bei 220°C für 25 Minuten erfolgen.The individual tempering steps are below 300 ° C., advantageously below 250 or 230 ° C., so that the coating is suitable not only for metal, ceramic and glass substrates but also for plastic substrates. The sintering or drying time can be in the time range between 20 and 40 minutes. The sintering takes place for example at 220 ° C for 25 minutes. The intermediate sintering / drying can also be done at 220 ° C for 25 minutes.
Das Auftragen der Ausgangsgemische der einzelnen Schichten erfolgt beispielsweise mittels Sprühen. Auftragungsbedingt erfolgt die Verteilung der Partikel 28 statistisch verteilt, jedoch mit einer gleichmäßigen mittleren Rauhigkeit über die gesamte beschichtete Oberfläche.
- Gewichtsanteil ohne Berücksichtigung des variablen Lösungsmittelanteils
- In Klammern vorteilhafte Werte
- Weight fraction without consideration of the variable solvent content
- In brackets advantageous values
Die obige Tabelle zeigt ein Beispiel für die Zusammensetzung der einzelnen Schichten, wobei der Vorprimer und/oder die Zwischendeckschicht 32 optional sind. Die angegebenen Beispiele für die einzelnen Komponenten können einzeln, mehrere davon oder insgesamt als Gemisch verwendet werden. Beispielsweise kann eine Keramik (wie Silziumcarbid, Bornitrid, Silizium, Aluminiumoxid und/oder diamantartiger Kohlenstoff), Metall, Silikat oder Glas einzeln verwendet oder ausgewählte davon zusammengemischt werden. Besonders vorteilhafte Resultate haben sich bei Verwendung von keramischen Einlagerungen ergeben. Vorzugsweise ist die oder sind die Deckschichten eine Mischung aus Silikon und Epoxidharz.The above table shows an example of the composition of the individual layers, wherein the pre-primer and / or the
Der Anwendungsbereich der Antihaftschicht sind Werkzeuge, wie Walzen, Etikettierwalzen, Umlenkwalzen, Rollen, Trichter und Zufuhrrinnen, und andere Maschinenbauteile.The scope of the non-stick coating are tools such as rollers, labeling rollers, guide rollers, rollers, hoppers and feed chutes, and other machine components.
Auch wurde die Beschichtung erfolgreich als Innenbeschichtung von Absaugrohren eingesetzt. Durch die so beschichteten Rohre wurden selbstklebende Papierschnipsel abgesaugt und es war nur durch den Einsatz dieser Beschichtung möglich, dass die Schnipsel nicht anhafteten. Alle anderen Beschichtungen funktionierten nicht.Also, the coating was successfully used as an inner coating of suction tubes. Self-adhesive scraps of paper were sucked off through the tubes coated in this way and it was only possible by using this coating that the chips did not adhere. All other coatings did not work.
Weiterhin wurde die Beschichtung erfolgreich auf Trennmesser eingesetzt. Dabei wurden die Trennmesser für die Herstellung von Gummidichtungen zunächst mit WolframCarbid beschichtet. Anschließend erfolgte die Beschichtung mit der oben ausführlich beschriebenen AntihaftBeschichtung. Es wurde gezeigt, dass die relativ klebrigen Gummidichtungen leichter vom Messer abfallen. Andere Beschichtungs-Typen versagten hier.Furthermore, the coating was successfully used on separating knife. The cutting blades for the production of rubber seals were first coated with tungsten carbide. Subsequently, the coating was carried out with the non-stick coating described in detail above. It has been shown that the relatively sticky rubber seals fall off the knife more easily. Other types of coatings failed here.
Weitere geeignete Anwendungen und Verwendungen der Beschichtung sind: Aluminiumplatte, Aluminiumrolle, Alu-Werkstückträger für Dichtungen, Antriebsrolle, Drahtgurtmuster, Druckwalze aus EPDM, Fassklemmung, Fixierleistensatz, Flachmesser, Gießform für Wachsmalstifte, Laminierleiste, Leimbehälter, Leimschale, Messersatz, Presswerkzeug, Prisma, Rakel für Rückspinnerwalze, Ringe, Schabermesser/Frankenklinge, Schieberleistensatz, Schweißbalken, Schweißspiegel, Stahl-Vulkanisationsdorne, Stahlwalze, Tankwanne, Wärmetauscher, Welle oder Walzensegmente.Further suitable applications and uses of the coating are: aluminum plate, aluminum roller, aluminum workpiece carrier for gaskets, drive roller, wire belt pattern, EPDM pressure roller, drum clamp, fixing bar set, flat blade, wax crayon mold, lamination bar, glue container, glue pot, knife set, crimping tool, prism, spinner roll squeegee, rings, scraper blade / scraper blade, pusher bar set, welding bar, welding mirror, steel Vulcanization mandrels, steel roller, tank trough, heat exchanger, shaft or roller segments.
Claims (26)
- Method for producing a nonstick coating (5) on a substrate (10) having the steps of:applying at least one primer layer (20) on the substrate (10), wherein the at least one primer layer comprises inclosures (28) with a grain size in the range from 5 to 50 µm,applying at least one cover layer (30) on the at least one primer layer (20), andthermally treating the at least one cover layer (30);characterized in thatthe maximum treatment temperature for all of the thermal treatments used in the coating is 300 °C, preferably 250 °C or 230 °C at maximum.
- Method according to claim 1, wherein the thermal treatment of the at least one cover layer is effected in a temperature range from 120 °C to 300 °C, preferably in the temperature range from 180 °C to 250 °C or 200 °C to 230 °C, particularly preferably in the temperature range from 230 to 250 °C.
- Method according to claim 1 or 2, wherein applying the primer layer (20) includes applying at least a first and a second primer layer (22, 24).
- Method according to claim 1, 2 or 3, wherein after applying the at least one primer layer (20) and/or after applying the first primer layer (22), an intermediate treatment is carried out, in particular tempering and/or drying.
- Method according to claim 3 or 4, wherein the first primer layer (22) is a compensating layer and/or adhesion promoting layer, in particular a compensating layer leveling the surface structure of the substrate (10).
- Method according to any one of the preceding claims, wherein applying the cover layer (30) includes applying at least a first and a second cover layer (32, 34).
- Method according to claim 6, wherein after applying the first cover layer (32), an intermediate treatment of the first cover layer (32) is carried out, in particular tempering and/or drying.
- Method according to claim 4 or any one of the preceding claims 5, 6 or 7 in dependency on claim 4, wherein the tempering and/or drying is effected at a temperature below 300 °C, preferably below 250 °C or 230 °C.
- Method according to claim 4 or any one of claims 5 to 7 in dependency on claim 4, wherein the tempering and/or drying is effected in a temperature range from 180 °C to 300 °C, preferably in the temperature range from 180° to 250 °C or 200 °C to 230 °C.
- Nonstick coating on a substrate (10) having:at least one primer layer (20) on the substrate (10), wherein the at least one primer layer comprises inclosures (28) with a grain size in the range from 5 to 50 µm, andat least one cover layer (30) on the at least one primer layer (20), wherein the cover layer comprises at least one component based on silicone and/or silicate;characterized in thatthe cover layer (30) or a first cover layer (32) and/or a second cover layer (34) of the cover layer (30) comprises a resin, in particular with one, two or more components based on silicone, polysiloxane, silicate and/or epoxy resin.
- Nonstick coating according to claim 10, wherein the primer layer (20) includes at least a first and a second primer layer (22, 24).
- Nonstick coating according to claim 10 or 11, wherein the cover layer (30) includes at least the first and the second cover layer (32, 34).
- Nonstick coating or method according to any one of the preceding claims, wherein the inclosures in the primer layer (20) and/or in the second primer layer (24) comprise one or more of the following grain and/or powder materials: ceramic, metal, glass or silicate.
- Nonstick coating or method according to any one of the preceding claims, wherein the weight portion of the inclosures of the primer layer (20) and/or of the second primer layer (24) is in the range from 25 - 60 %, preferably in the range from 25 -50%.
- Nonstick coating or method according to any one of the preceding claims, wherein the primer layer and/or the cover layer are layers based on plastic.
- Nonstick coating or method according to any one of the preceding claims, wherein the primer layer (20), the first primer layer (22) and/or the second primer layer (24) comprise a resin former and a hardener, in particular with one, two or more components based on silicone, silicate and/or epoxy.
- Method according to any one of claims 1 to 9 or 13 to 16, wherein the cover layer (30), the first cover layer (32) and/or the second cover layer (34) comprise a resin, in particular with one, two or more components based on silicone, polysiloxane, silicate and/or epoxy resin.
- Nonstick coating or method according to any one of the preceding claims, wherein the weight portion of the resin is in the range from 20 to 80 %, preferably in the range from 30 to 65 % or 30 to 55 %.
- Nonstick coating or method according to any one of the preceding claims, wherein the cover layer (30), the first cover layer (32) and/or the second cover layer (34) comprise a filler, in particular graphite and/or carbon.
- Nonstick coating or method according to claim 19, wherein the weight portion of the filler is less than or equal to 10 %, preferably less than or equal to 5 %.
- Nonstick coating or method according to any one of the preceding claims, wherein the at least one primer layer (20) and/or the at least one cover layer (30) is or are free of PTFE, preferably free of fluorine.
- Nonstick coating or method according to any one of the preceding claims, wherein the cover layer (30), the first cover layer (32) and/or the second cover layer (34) are contour-preserving, in particular during the application and the subsequent treatment.
- Nonstick coating or method according to any one of the preceding claims, wherein the substrate (10) is a plastic substrate, in particular a temperature-sensitive plastic substrate, an elastic substrate or a substrate having an elastic surface layer.
- Tool for applying adhesives or adhesive labels, in particular for the food sector, including a nonstick coating according to any one of claims 10 to 16 or 18 to 23.
- Providing a starting mixture for producing a primer layer (20, 22, 24) for a nonstick coating, wherein the starting mixture comprises:inclosures (28) with a grain size in the range from 5 to 50 µm having a weight portion of the inclosures in the range from 25 - 60 %, preferably in the range from 25 - 50 %, anda resin former and a hardener, in particular with one, two or more components based on silicone, silicate and/or epoxy, with a weight portion of resin former and hardener together in the range from 20 to 80 %, preferably in the range from 30 to 65 % or 30 to 55 %,wherein the weight portions are calculated without solvent.
- Providing a starting mixture according to claim 25, wherein the inclosures comprise one or more of the following grain and/or powder materials: ceramic, metal, glass or silicate.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200510037338 DE102005037338A1 (en) | 2005-08-04 | 2005-08-04 | Producing a nonstick coating on a substrate comprises applying a primer coat having inclusions, applying a top coat and heat-treating the top coat |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1752227A1 EP1752227A1 (en) | 2007-02-14 |
EP1752227B1 true EP1752227B1 (en) | 2014-10-29 |
Family
ID=37488058
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20060015766 Active EP1752227B1 (en) | 2005-08-04 | 2006-07-28 | Antistick-coating, method of production and antistick-coated substrate materials |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP1752227B1 (en) |
DE (1) | DE102005037338A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102010029116B4 (en) | 2010-05-19 | 2021-10-14 | Bayerische Motoren Werke Aktiengesellschaft | Method and mold for making an adhesive sample |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103937318B (en) | 2006-11-03 | 2016-01-20 | 德克·里克特 | non-stick coating |
DE102008048848A1 (en) | 2008-09-25 | 2009-02-19 | Heidelberger Druckmaschinen Ag | Element used in a machine processing printed material comprises a support with a first layer having a structure surface and a second layer with particles and fibers |
DE202009008205U1 (en) | 2009-06-09 | 2010-02-11 | Eftec Aftermarket Gmbh | Use of a waxy composition as a coating of surfaces to improve its cleanability |
DE102009049137A1 (en) * | 2009-10-12 | 2011-04-14 | Rhenotherm Kunststoffbeschichtungs Gmbh | coating System |
DE102009050658A1 (en) | 2009-10-26 | 2011-04-28 | Heidelberger Druckmaschinen Ag | Printing substrate contacting element e.g. paper guiding cylinder jacket, for use in e.g. post press machine, has layer arranged on another layer and exhibiting surface, where former layer exhibits particles, fibers and casings |
DE102009052398B4 (en) | 2009-11-10 | 2013-05-16 | Acs Coating Systems Gmbh | Coating for a substrate and method for its production |
DE102011010718B4 (en) | 2010-03-12 | 2022-07-07 | Heidelberger Druckmaschinen Ag | Process for producing a structured surface that contacts the printing material |
DE102012004278B4 (en) | 2011-03-31 | 2022-07-07 | Few Chemicals Gmbh | Coating composition for abrasion-resistant and anti-adhesive surface coatings, use thereof and coated surface |
DE102011018343A1 (en) | 2011-04-20 | 2012-10-25 | Heidelberger Druckmaschinen Ag | Substrate contacting, structured surface with a substrate and at least one layer |
DE102011078430A1 (en) | 2011-06-30 | 2013-01-03 | Bayerische Motoren Werke Aktiengesellschaft | Mold tool for production of fiber composite components, has nonstick layer on surface that has anti-adhesive material that forms matrix and embedded reinforcing fibers |
FR3004972B1 (en) * | 2013-04-26 | 2018-01-05 | Liebherr-Aerospace Toulouse Sas | PROCESS FOR MANUFACTURING A WORKPIECE WITH A LUBRICATING SURFACE COATING, PIECE PROVIDED WITH SUCH COATING AND TURBOMACHINE |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2110768B2 (en) * | 1971-03-06 | 1974-01-24 | Farbwerke Hoechst Ag, Vormals Meister Lucius & Bruening, 6000 Frankfurt | Primer dispersion for the production of coatings from fluorocarbon polymers |
EP0084771A3 (en) * | 1982-01-22 | 1984-02-22 | Allied Corporation | Method of making a powdered primer coating composition |
US5250356A (en) * | 1992-08-28 | 1993-10-05 | E. I. Du Pont De Nemours And Company | Cookware coating system |
IT1302094B1 (en) | 1998-03-06 | 2000-07-20 | Kemi S R L | METHOD TO CONFER ANTI-PACKAGING PROPERTIES TO A GRANULES POLYERIC MATERIAL AND ANTI-PACKAGING COMPOSITIONS USED IN |
DK199801087A (en) * | 1998-08-28 | 2000-02-29 | Pyrolux Production A S | Method of coating cookware |
US6291054B1 (en) * | 1999-02-19 | 2001-09-18 | E. I. Du Pont De Nemours And Company | Abrasion resistant coatings |
EP1048751B1 (en) * | 1999-04-29 | 2004-10-27 | Hort Coating Center | Method for adhering a hard coating to a substrate and coated substrate |
DE19920180A1 (en) | 1999-05-03 | 2000-11-09 | Heinrich Berndes Haushaltstech | Coating material for production of non-stick coatings, especially on cooking utensils such as pots and pans, comprises material which is applied as dry powder and then sintered to form coating |
DE19963670C2 (en) * | 1999-12-29 | 2003-03-06 | Rhenotherm Kunststoffbeschicht | Process for producing a non-stick coating, non-stick coating and use of a non-stick coating |
DE10047124A1 (en) * | 2000-03-20 | 2001-10-18 | Induflex Sondermaschb | Surface, process for its manufacture and object with the surface |
DE10016485A1 (en) * | 2000-04-01 | 2001-10-11 | Dmc2 Degussa Metals Catalysts | Glass, ceramic and metal substrates with a self-cleaning surface, process for their production and their use |
DE10018671C2 (en) * | 2000-04-14 | 2002-09-26 | Nanogate Technologies Gmbh | Process for producing a hydrophobic surface of objects made of silicate ceramic materials and object with a hydrophobic surface |
EP1334737A3 (en) | 2000-05-29 | 2004-05-12 | Reto Dr. Lerf | Anti-adhesive coating and uses thereof |
DE10028296A1 (en) * | 2000-06-07 | 2001-12-13 | Leifheit Ag | Kitchen and household appliances |
DE10118345A1 (en) * | 2001-04-12 | 2002-10-17 | Creavis Tech & Innovation Gmbh | Properties of structure formers for self-cleaning surfaces and the production of the same |
DE20212324U1 (en) | 2002-08-09 | 2002-12-19 | Schott Glas | Easy to clean device |
DE10306582A1 (en) * | 2003-02-17 | 2004-08-26 | BSH Bosch und Siemens Hausgeräte GmbH | Surface coating for a cooker or oven comprises a vitreous enamel layer with embedded crystal zones that provide both coarse and fine surface roughness |
-
2005
- 2005-08-04 DE DE200510037338 patent/DE102005037338A1/en not_active Withdrawn
-
2006
- 2006-07-28 EP EP20060015766 patent/EP1752227B1/en active Active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102010029116B4 (en) | 2010-05-19 | 2021-10-14 | Bayerische Motoren Werke Aktiengesellschaft | Method and mold for making an adhesive sample |
Also Published As
Publication number | Publication date |
---|---|
EP1752227A1 (en) | 2007-02-14 |
DE102005037338A1 (en) | 2007-02-08 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP1752227B1 (en) | Antistick-coating, method of production and antistick-coated substrate materials | |
EP1361261B1 (en) | Seal | |
DE60003043T2 (en) | MANUFACTURE AND ASSEMBLY OF STRUCTURES | |
WO2006081801A1 (en) | Article with anti-adhesion coating and method for production thereof | |
DE69906945T2 (en) | MULTI-LAYER HEAT-FIXING ROLLERS FROM A FLEXIBLE SUBSTRATE WITH A FLUOROPOLYMER COATING AND PRODUCTION METHOD | |
DE102005009552A1 (en) | Anti-friction coating article and method of making a coating | |
EP0394518A1 (en) | Maintenance-free sliding bearings and a method for it's production | |
EP0031880A2 (en) | Method for producing a reinforced product | |
DE102005032070A1 (en) | Surface treatment process for a magnesium-based material | |
DE102018208427B4 (en) | Process for manufacturing a component, the component itself and its use | |
DE2540811A1 (en) | METHOD OF MANUFACTURING A SLIDING LAYER COMPOSITE SLIDING BEARING OR STRAP | |
EP0523761B1 (en) | Process for coating cooking utensiles and coated utensiles | |
DE69917826T2 (en) | Ceramic substrate and its polishing process | |
EP0518049B1 (en) | Method and applying wear-resistant hard coatings to metallic substrates | |
DE102016123562B4 (en) | Process for treating a composite wrist pin and surface treated composite wrist pins | |
DE3042606A1 (en) | COVERED METAL OBJECTS AND METHOD FOR THEIR PRODUCTION | |
DE102015116916A1 (en) | Coating, coating system and coating process | |
DE4441124A1 (en) | Process for producing a non-stick, moisture-proof plastic cover on a base | |
EP1148083B1 (en) | Sheetlike preform and process for preparing same | |
EP1138654B1 (en) | Process for Making a carbon fibre reinforced ceramic element with a hard ceramic and pore-free coating | |
DE3232726A1 (en) | METHOD FOR PRODUCING MULTI-LAYERED SURFACES | |
DE2546458C3 (en) | Powder coating process | |
DE102022121273A1 (en) | Powder mixture for Teflon-free non-stick coating | |
DE4241022A1 (en) | ||
WO2012028448A1 (en) | Process for applying a bonding layer to a metallic substrate |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR |
|
AX | Request for extension of the european patent |
Extension state: AL BA HR MK YU |
|
17P | Request for examination filed |
Effective date: 20070713 |
|
17Q | First examination report despatched |
Effective date: 20070810 |
|
AKX | Designation fees paid |
Designated state(s): DE ES FR GB IT |
|
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: IMPREGLON BESCHICHTUNGEN GMBH |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R079 Ref document number: 502006014036 Country of ref document: DE Free format text: PREVIOUS MAIN CLASS: B05D0005080000 Ipc: B05D0005020000 |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
RIC1 | Information provided on ipc code assigned before grant |
Ipc: B05D 5/02 20060101AFI20140226BHEP Ipc: B05D 7/00 20060101ALI20140226BHEP Ipc: B05D 5/08 20060101ALI20140226BHEP Ipc: B41N 7/00 20060101ALI20140226BHEP |
|
INTG | Intention to grant announced |
Effective date: 20140318 |
|
GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
INTG | Intention to grant announced |
Effective date: 20140826 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): DE ES FR GB IT |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D Free format text: NOT ENGLISH |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R096 Ref document number: 502006014036 Country of ref document: DE Effective date: 20141211 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: ES Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20141029 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R097 Ref document number: 502006014036 Country of ref document: DE |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20141029 |
|
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
26N | No opposition filed |
Effective date: 20150730 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: PLFP Year of fee payment: 11 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: PLFP Year of fee payment: 12 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: PLFP Year of fee payment: 13 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R082 Ref document number: 502006014036 Country of ref document: DE Representative=s name: KAHLER KAECK MOLLEKOPF PARTNERSCHAFT VON PATEN, DE Ref country code: DE Ref legal event code: R081 Ref document number: 502006014036 Country of ref document: DE Owner name: AALBERTS SURFACE TECHNOLOGIES GMBH, DE Free format text: FORMER OWNER: IMPREGLON BESCHICHTUNGEN GMBH, 86899 LANDSBERG, DE Ref country code: DE Ref legal event code: R081 Ref document number: 502006014036 Country of ref document: DE Owner name: AALBERTS SURFACE TREATMENT GMBH, DE Free format text: FORMER OWNER: IMPREGLON BESCHICHTUNGEN GMBH, 86899 LANDSBERG, DE |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R081 Ref document number: 502006014036 Country of ref document: DE Owner name: AALBERTS SURFACE TECHNOLOGIES GMBH, DE Free format text: FORMER OWNER: AALBERTS SURFACE TREATMENT GMBH, 86899 LANDSBERG, DE |
|
P01 | Opt-out of the competence of the unified patent court (upc) registered |
Effective date: 20230530 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 20230710 Year of fee payment: 18 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20230710 Year of fee payment: 18 Ref country code: DE Payment date: 20230711 Year of fee payment: 18 |