摘要:
A process to produce a silane coating includes charging one or several silanes, which are not or only minimally pre-condensed, 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. The approach is advantageous insofar as 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:
The invention relates to a method for the production of a highly abrasion-resistant vehicle paint, vehicle paint, and the use thereof.In order to create a vehicle paint having extremely high scratch and chemical resistance, particularly for use in multi-layer coating for OEM series coating (particularly as a clear coat or base cast), the invention proposes a method for the production of a highly abrasion-resistant vehicle paint, comprising the following steps: a. Providing at least one organic monomer, oligomer, prepolymer, or organosilane having one or more organic functional groups, or mixtures thereof; b. Saturating the functional groups described in a. by reacting them with silanes having organic side chains that contain one or more corresponding functional groups, the resultant silane having at least six SiOR groups and a molecular weight exceeding 300; c. Absorbing the resultant macro-molecular silanes in solvent, preferably protic or aprotic solvent, or mixtures thereof; d. Adding reaction partners, particularly acids, Lewis acids, bases or Lewis bases; e. Applying the vehicle paint obtained in this manner onto a substrate, and f. Curing the coating material.
摘要:
The invention relates to a method for producing a coating material as well as the use of the coating material.In order to provide a method for producing a novel coating material with which scratchproof coatings can be fabricated and which may also be used as coating powder, it is proposed within the scope of the invention that one or more organic molecules, oligomers or polymers comprising at least one functional group react with one or more silanes comprising at least one functional organic group on an organic side chain to form a covalent bond between the organic molecule, oligomer or polymer and the silane, thus resulting in a high-molecular-weight silane which can be cured directly by means of a catalyst.Surprisingly, it has been found that by reacting organically functionalized silanes, e.g. silanes that have an NCO— functional group (and are, at the most, slightly pre-crosslinked), with suitable reaction partners, a novel class of compounds can be produced which, in the form of coating powders, high-solids binders or 100 percent resins, may be used as coating material.
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 coating for permanent hydrophilization of surfaces and its use are provided. The coating is made of nano-scale particles having hydrophilic side chains, which can be sintered. The coating may be made of 10 to 90% inorganic structures, 5 to 70% hydrophilic side chains, and 0 to 50% organic side chains having functional groups.
摘要:
A coating for permanent hydrophilization of surfaces and its use are provided. The coating is made of nano-scale particles having hydrophilic side chains, which can be sintered. The coating may be made of 10 to 90% inorganic structures, 5 to 70% hydrophilic side chains, and 0 to 50% organic side chains having functional groups.