摘要:
The invention relates to a silane coating material and a process to produce silane coating.To produce a silane coating material according to the preamble, in which the above-mentioned drawbacks are avoided, according to the invention a process to produce a silane coating is proposed where one or several silanes, which are not or only minimally pre-condensed, are charged with a reactant and the thus created coating material is applied onto a substrate and then hardened.Surprisingly it has been shown that, through the reaction involving higher-molecular and only slightly pre-cross-linked silanes with a suitable reactant, a new class of coating materials can be created. According to the current state of the art, silanes are processed in sol-gel processes, where pre-condensated species are assumed. The approach according to the invention is advantageous insofar as the restrictions with respect to pot time no longer exist and, in addition, better features of the coating material are obtained, especially a high scratch-resistance.
摘要:
A composition for producing a protective coat against scaling on metallic surfaces. The composition includes, as binders, hydrolysates/condensates of at least one silane or a silicone resin binder and also, further, at least one metallic filler.
摘要:
Domestic appliances are provided with a catalytic deodorizing coating, prepared by applying a coating material containing a polycondensate of at least one hydrolysable organosilane, optionally one or more compounds of glass-forming elements, and particles of one or more catalytically active transition metal oxides, and then heat-treating the applied coating material.
摘要:
The invention relates to powder-coated substrates bearing on a powder-coated surface a scratch-resistant and abrasion-resistant topcoat of a coating material which comprises: a) condensates based on hydrolyzable silanes containing at least one non-hydrolyzable substituent, the hydrolyzable silanes having an epoxide group on at least one non-hydrolyzable substituent; b) a curing catalyst selected from Lewis bases and alkoxides of titanium, zirconium or aluminium; c) nanoscale particulate inorganic solids having a particle size in the range from 1 to 100 nm; and d) at least one organic monomer, oligomer or polymer containing at least one epoxide group.
摘要:
The present invention provides a coating composition which comprises at least one silicon compound (A) which has at least one radical which is bonded directly to Si, is not able to be separated hydrolytically and contains an epoxy group, a particulate material (B) which is selected from among oxides, oxide hydrates, nitrides and carbides of Si, Al and B and of transition metals and has a particle size within the range 1 to 100 nm, an Si, Ti, Zr, B, Sn or V compound (C) and at least one hydrolysable Ti, Zr or Al compound (D), which comprises the following ratio 1.0 mol of the silicon compound (A), 0.27 to 0.49 mol of the particulate material (B), 0.36 to 0.90 mol of the compound (C) and 0.14 to 0.22 mol of the compound (D).