Abstract:
The invention relates to a powder substantially consisting of boron nitride aggregates. Said powder has an overall chemical composition of 40 to 45 wt.% boron, 53 to 57 wt.% nitrogen, less than 400 ppm calcium, less than 5 wt.% other elements in total, and more than 90 wt.% boron nitride, limits included, and, in weight percent and on the basis of all the crystallized phases, mean circularity greater than or equal to 0.90, a median pore size less than or equal to 0.5 µm, and open porosity less than or equal to 55%.
Abstract:
The invention relates to an insulating tape for insulating stator coils in electric machines, in particular the tape accelerator in the tape adhesive of the insulating tape, which insulating tape is used for a wrapping tape insulation system. Previously known tape accelerators based on N-ethylpiperazine are replaced here by imidazole and/or pyrazole compounds. Furthermore, additional exemplary embodiments of the invention allow a broadening of the scope of the imidazole and/or pyrazole compounds newly discovered for this technology as gelling and/or curing agents into general usage in epoxy resins based on bisphenol A and/or bisphenol F diglycidyl ether, in particular the phthalic anhydride free species thereof.
Abstract:
A liquid polymerizable composition including an amide or a thioamide derivative monomer with mineral nanoparticles homogeneously dispersed therein, as well as its use for the preparation of a transparent polymeric material having a high refractive index and its use in the optical field.
Abstract:
A composition for fused filament fabrication may include polylactic acid resin and talc. The composition may range from 50% by weight to 99% by weight polylactic acid resin, and from 7% by weight to 40% by weight talc. The composition may be configured as filaments or pellets adapted to be used in a fused filament fabrication process. A method for generating a resin-based structure may include providing a resin source that may include polylactic acid resin and talc. The resin source may include from 50% by weight to 99% by weight polylactic acid resin, and from 7% by weight to 40% by weight talc. The method may also include heating the resin source to a temperature greater than the melting temperature for semi-crystalline resins or significantly greater than glass transition temperature for amorphous resins, and depositing the heated resin source in a layered manner to form the resin-based structure.
Abstract:
A carbon fiber composite material 60 of the present invention includes: cell structures 300 with an elastomer 30 surrounded by a first carbon nanofiber 80 and an interface phase 30a thereof; cell structure assemblies 400 as assemblies of more than one of the cell structures 300; and tie structures 500 that join the cell structure assemblies 400 to each other. The tie structures 500 are formed by one or more first carbon nanofibers 80, one or more second carbon nanofibers 90, and the elastomer interface phase 30a surrounding the one or more first carbon nanofibers 80 and the one or more second carbon nanofibers 90.
Abstract:
The present invention relates to a conductive composition containing a conductive metal powder and an epoxy resin component in which the conductive metal powder contains a metal flake and the epoxy resin component contains a polyfunctional epoxy resin having three or more epoxy groups.
Abstract:
The invention provides a tire comprising a rubber composition comprising at least a diene elastomer; between 20 and 160 phr of a liquid plasticizer; less than 20 phr of a reinforcing filler; and from 600 to 1500 phr of metal particles having a density of between 4 and 20 g/cm3 and a BET surface area of between 0.1 and 4.5 m2 /g.
Abstract:
A high-refractive adhesive film includes: a thermosetting resin matrix; and high refractive particles dispersed in the thermosetting resin matrix. The refraction index of the high-refractive particles is higher than that of the thermosetting resin matrix.