Abstract:
The invention relates to improved metal oxide nanoparticles, particularly zinc oxides, that are modified with silanes. The particles thus obtained are suitable for improved UV protection of polymers.
Abstract:
The present invention relates to a process for producing metal oxide nanofibres using a sol-gel precursor. The nanofibres produced by the process according to the invention are distinguished by an increased metal oxide content compared to the prior art.
Abstract:
Thermoplastic molding compositions, comprising A) from 10 to 99.999% by weight of a polyimide B) from 0.001 to 20% by weight of iron powder with a particle size of at most 10 mum (d50 value), which is obtainable via thermal decomposition of pentacarbonyliron, C) from 0 to 70% by weight of further additives, where the total of the percentages by weight of components A) to C) is 100%.
Abstract:
The novel polyamide fibers comprising stainable particles contain 80 to 99.95% by weight polyamide, 0.05 to 20% by weight stainable particles, and 0 to 19.95% by weight additives, wherein the sum of the weight percentages is 100%.
Abstract:
A layered structure comprising in this order: (A) a silicon carbide layer, (B) at least one stratum (b1) located at least one major surface of the silicon carbide layer (A), (b2) chemically bonded to the bulk of the silicon carbide layer (A) by silicon-oxygen and/or silicon-carbon bonds, (b3) covering the at least one major surface of the silicon carbide layer (A) partially or completely, and (b4) having a higher polarity than a pure silicon carbide surface as exemplified by a contact angle with water which is lower than the contact angle of water with a pure silicon carbide surface; and (C) at least one dielectric layer, which covers the stratum or the strata (B) partially or completely and is selected from inorganic and inorganic-organic hybrid dielectric layers; a process for its manufacture and its use.
Abstract:
In the thermoelectric module composed of p- and n-conductive thermoelectric material legs which are connected to one another alternately via electrically conductive contacts, at least some of the electrically conductive contacts on the cold and/or the warm side of the thermoelectric module are formed between, or embedded into, the thermoelectric material legs composed of porous metallic materials.