Abstract:
Die vorliegende Erfindung betrifft ein Verfahren zur Beschichtung von Kunststoffsubstraten mit einem wässrigen Beschichtungsmittel (A) enthaltend mindestens ein organisches Polymer als Bindemittel, wobei das Beschichtungsmittel auf mindestens eine Oberfläche (O) des Kunststoffsubstrats appliziert wird und anschließend gehärtet wird, dadurch gekennzeichnet, dass (i) vor der Applikation des Beschichtungsmittels (A) eine Carben-bildende Verbindung (C) der Formel (I) mit R 1 = −(CX 2 )nX, wobei X = F oder Cl und n = 0 oder 1 ist, R 2 = (a) mit R 3 , R 4 unabhängig voneinander = −H, −(CH 2 ) m Y, wobei Y = OH, CO 2 H, NH 2 oder Br und m = 0 bis 4 ist, wobei R 3 = R 4 = −H ausgeschlossen ist, direkt auf die Oberfläche (O) appliziert wird sowie zur Carbenbildung aktiviert wird und/oder (ii) das Beschichtungsmittel (A) die Carben-bildende Verbindung (C) enthält und diese nach der Applikation des Beschichtungsmittels (A) zur Carbenbildung aktiviert wird. Die Erfindung betrifft auch mittels des Verfahrens hergestellte Beschichtungen sowie beschichtete Kunststoffsubstrate.
Abstract:
The invention relates generally to a process (100) comprising as process steps: a)providing a substrate having a substrate surface; b) providing a first composition, comprising: i) Sn Cl2, and ii) water; c)providing a second composition, comprising: i) sulfuric acid, and ii) a reducing agent; d) providing a third composition, obtainable by mixing: i) AgNO3, ii) nitric acid, iii) water, and iv) NH3; e) contacting the substrate surface with the first composition under obtaining an activated substrate surface; f) contacting the activated substrate surface with the second composition and the third composition, wherein the activated substrate surface has a temperature in a range from about 10 to about 50°C. The invention further relates to a composite obtainable by the above process; to a composite comprising an Ag-comprising layer; to a composition comprising AgNO3; and to a use of composition comprising AgNO3 for forming conducting paths.
Abstract:
The present invention relates to a multilayer film, to a back sheet for a photovoltaic module, to a method for manufacturing same, and to a photovoltaic module. The multilayer film of the present invention is prepared by forming a resin layer on a base material, wherein the resin layer includes a fluorine-based polymer and a polymer having oxazoline groups. Thus, the resin layer including the fluorine-based polymer can have superior durability and weather resistance, and also have strong interfacial adhesion with the base material. In the process for manufacturing the multilayer film, a drying process can be performed at a relatively low temperature, thereby reducing manufacturing costs, improving productivity, and preventing deterioration in quality by thermal deformation and thermal shocks. The multilayer film of the present invention can be used effectively, for example, as a back sheet for various types of photovoltaic modules.
Abstract:
Die Erfindung betrifft die Funktionalisierung von Polymeroberflächen, wobei diese durch eine mechanische Einarbeitung von funktionalisierten und/oder polymergeschützten Festkörperteilchen herbeigeführt wird. Mit Hilfe einer mechanischen Einwirkung auf ein mit funktionalisierten Festkörperteilchen benetztes Polymersubstrat kann eine stabile, homogene und dichte Funktionalisierung des Substrates herbeigeführt werden. Mit der beschriebenen Verfahrensweise wird eine Vereinfachung der Funktionalisierungsprozedur erreicht.
Abstract:
The invention relates to a process for coating a material surface comprising the steps of: (a) reacting the material surface with a compound of formula (1), wherein the variables are as defined in the claims; (b) reacting the so modified surface with a functional polymerization initiator having a functional group that is co-reactive to L2 or L2'; and (c) applying one or more different ethylenically unsaturated hydrophilic monomers or macromonomers to the bulk material surface obtainable according to step (b) and polymerizing said macromonomers, thereby providing a preferably hydrophilic surface coating onto the material surface. Composite materials obtainable according to the process of the invention have desirable characteristics regarding adherence to the substrate, durability, hydropholicity, wettability, biocompatibility and permeability and are thus useful for the manufacture of biomedical articles such as ophthalmic devices.
Abstract:
A method using irradiation with optical light having a wavelength of 160 to 500 nanometers without higher wavelength with coiling of the surface during the irradiation to modify the surface (12A, 104A, 202A, 304A, 402A, 502A) of a substrate (12, 104, 202, 304, 402, 502) is described. The light is filtered or the lamp (24, 106, 212, 306, 510) is restricted to the limited range to avoid the effects of the higher spectra. The light can be pulsed or continuous. The method is significantly enhanced by the presence of water (14, 124, 204, 306, 410, 508) on the surface, preferably also in the presence of ozone in the water. The treated surfaces are more paintable and bondable.
Abstract:
A method of modifying at least part of the surface of a polymer or polymer matrix composite material including: (i) oxidising at least part of the surface of the polymer or polymer matrix material, and (ii) subsequently treating the oxidised surface with an organofunctional coupling agent and/or chelating agent, simultaneously with a static and/or a high frequency alternating physical field.
Abstract:
The vessel is produced by forming a specific oxide layer on the surface of a vessel, and providing thereon a coating layer of a copolymer resin of vinylidene chloride, vinyl chloride and (meth)acrylate. This coated vessel shows excellent gas barrier properties and has excellent delamination resistance particularly at low temperatures in a wet state.
Abstract:
The present invention provides a method for coating a surface of a 3-dimensional substrate having a non-planar surface geometry, in particular a substrate comprising at least one lumen or cavity, with a highly liquid-repellent and/or microorganism-repellent nanofilament coating comprising at least the following steps: a) contacting the substrate surface or a part thereof, in particular including the inner surface of any lumen or cavity thereof, for a predetermined period of time with an activating agent to generate oxygen-comprising functional groups, or to provide an absorbed water film or adsorbed water drops on said surface. b) contacting the substrate surface obtained after step a) for a predetermined period of time with a siliconizing agent to form a coating of liquid-repellent and/or microorganism-repellent silicone nanofilaments on said substrate surface or a part thereof, wherein the siliconizing agent comprises at least one substituted silane compound capable to react with oxygen-comprising groups or preabsorbed water film or water drops on said substrate surface and also to undergo a polysiloxane reaction with water to form covalently bonded silicone nanofilaments on said substrate surface or part thereof. In some preferred embodiments, the activation agent in step a) is selected from various oxidizing agents, in particular reagents including hydrogen peroxide and a catalyst capable to provide hydroxyl radicals in a Fenton's reaction, or from water film or water drops providing agents, in particular a mixture of a C1-C7 alkanol and water, or a humid gas, such, as air, nitrogen or oxygen, having a relative humidity of more than 60%. A further aspect of the invention relates to a 3-dimensional substrate having a non-planar surface geometry, in particular a substrate comprising at least one lumen or cavity having a high aspect ratio, with a highly liquid-repellent and/or microorganism-repellent coating comprising silicone nanofilaments, in particular on the inner surface of said lumen or cavity or at least a part thereof, which is obtainable by the method as described above.
Abstract:
A coated substrate includes: a substrate; an electrically conductive multilayer stack on the substrate; and a coating on the electrically conductive multilayer stack. A thickness of the coating is 5 to 10 mils and the coating includes a conductive, anti-static tiecoat on the electrically conductive multilayer stack; and a conductive, anti-static topcoat on the conductive, anti-static tiecoat. The conductive, anti-static tiecoat and the conductive, anti- static topcoat are formed from a coating composition including a hydrophobic first aliphatic polyisocyanate, a second aliphatic polyisocyanate including a hydrophilic portion, a polyester polyol, a hydrophilic polyol, and a fluorinated polyol compound is disclosed.