Abstract:
The invention concerns a method for preparing the surface of an organic substrate (1) designed to receive a coating (4), in particular metallic or ceramic. The invention is characterised in that it comprises a step which consists in controlled cracking (3a, 3b, 3c, 3d, 3e, 3f) of said substrate (1) surface (1a) by heat treatment (2), so as to enhance the mechanical bond of the coating (4).
Abstract:
A process and device are disclosed for coating elongated or slightly curved metallic substrates with a preferably powdery, plastic-based coating agent. An effective, energy saving coating process that avoids the danger of dust explosion has the following steps: (a) the substrate to be coated is fixed; (b) the substrate to be coated and/or the coating device are moved in a working direction; (c) the substrate to be coated is heated in a localised area by means of a gas flame up to a temperature from 80 DEG C to 900 DEG C; (d) at a defined distance behind the gas flame, the working area located between the gas flame and the following area, in which the coating agent is applied, is sealed by a partition and by a blocking layer made of a non-flammable, gaseous medium and formed between the partition and the surface of the substrate to be coated in order to prevent powder-loaded air from igniting; (e) the coating agent is applied on the hot metallic surface of the substrate to be coated in a manner known per se; and (f) when the coating process is finished, the coated substrate is released. This process is the first that allows metallic substrates to be coated by localised heating of the substrate by means of a gas flame.
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:
PROBLEM TO BE SOLVED: To provide a release film excellent in adhesiveness of a silicone release layer and a plastic film substrate, and a method of producing the same at a low cost and high productivity. SOLUTION: The release film contains a plastic film substrate, the surface modifying layer formed on one side or both surfaces of the plastic film substrate by radiating flame of fuel gas containing an organic silicon compound on the one side or the both sides of the plastic film substrate, and the silicone release layer composed of a curable material of the curable silicone composition, and the silicone release layer is provided on the surface modifying layer. The method of producing the release film comprises that the surface modifying layer is formed on the one side or the both sides by radiating the flame of the fuel gas containing the organic silicone compound on the one side or the both sides of the plastic film substrate, and the silicone release layer composed of the curable material of the curable silicone composition is formed on the surface modifying layer by applying and curing the curable silicone composition. COPYRIGHT: (C)2009,JPO&INPIT
Abstract in simplified Chinese:本发明系有关于一种用以于无机或有机之基材上制备强附着型涂料之方法,其中,于第一步骤a)低温等离子、电晕放电或火焰系于无机或有机之基材上作用,于第二步骤b)一或多种之所定义之光起始剂或所定义之光起始剂与含有至少一乙烯不饱和基之单体之混合物,或前述物质之溶液、悬浮液或乳化液被涂敷(较佳系于正常压力)至无机或有机之基材,于第三步骤c)使用适合方法,此等前述物质被干燥及/或以电磁波照射,及选择性地,于第四步骤,d)于经如此预处理之基材上涂敷进一步之涂料。