A roof element and a process for the production of a roof element are provided, which may have the steps of providing a polymer mixture; admixing an organosiloxane compound with the polymer mixture; a mixing of the polymer mixture, with the organosiloxane compound admixed, with an isocyanate compound to give a polyurethane material and introduction of the polyurethane material into a mold cavity of a foaming mold in a manner such that the polyurethane material reacts to completion and a molded section of the roof element is shaped in the mold cavity wherein the organosiloxane compound is accumulated at the surface of the molded section, wherein in a surface layer of thickness from 0.5 m to 20 m of the molded section, the organosiloxane compound is accumulated; and demolding of the roof element from the foaming mold.

Some variations provide a process for fabricating a ceramic structure, the process comprising: producing a plurality of preceramic polymer parts; chemically, physically, and/or thermally joining the preceramic polymer parts together, to generate a preceramic polymer structure; thermally treating the preceramic polymer structure, to generate a ceramic structure; and recovering the ceramic structure. The process may employ additive manufacturing, subtractive manufacturing, casting, or a combination thereof. A composite overwrap may be applied to the preceramic polymer structure prior to pyrolysis, and the composite overwrap also pyrolyzes to a ceramic composite and is a part of the final ceramic structure. The ceramic structure may be silicon oxycarbide, silicon carbide, silicon nitride, silicon oxynitride, silicon carbonitride, silicon boronitride, silicon boron carbonitride, or boron nitride, for example. The ceramic structure may have at least one dimension of 1 meter or greater, and may be a fully integrated ceramic object with no seams.

An embossing material that can be hardened and used for embossing lithography, comprised of a mixture of at least one polymerizable main component, and at least one secondary component. The invention also relates to a use of the embossing material for the primary forming of an embossing form.

A seat belt latch plate assembly includes a latch plate and a latch plate cover carried on the latch plate. That latch plate cover is made by means of a two-shot injection molding process and includes integral bumpers that are made from a soft, sound dissipating material and have an energy absorbing cross-sectional shape.

A thermosetting composition for injection molding comprising: (A) a compound represented by the following formula (A2) or (A3), and (B) a thermal polymerization initiator; wherein the composition further comprises no (G) titanium oxide or comprises (G) titanium oxide, when the composition comprises the component (G), the content of the component (G) is 5 parts by mass or less, based on a total of 100 parts by mass of components other than the component (B) and the component (C); and the composition comprises no polybutadiene di(meth)acrylate:

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A method produces a polysilane by reacting at least two silane monomers and at least one alkali metal. The silane monomers have the following structural units: at least one aryl group, at least one alkyl group, at least one alkenyl group, and at least three halogen atoms. Wherein at least three of the halogen atoms are bonded to a silicon atom of one of the silane monomers, and the reaction step takes place in an ether-containing solvent, particularly preferably dioxane. The obtained polysilane has a high molecular mass and, at 100 C., a viscosity of 1,500 to 3,000 Pa.Math.s. The polysilane is very suitable for being processed to form silicon carbide fibers and fiber composites.

A seat belt latch plate assembly includes a latch plate and a latch plate cover carried on the latch plate. That latch plate cover is made by means of a two-shot injection molding process and includes integral bumpers that are made from a soft, sound dissipating material and have an energy absorbing cross-sectional shape.

A laminated molded article includes a molded product formed from a resin composition and a metal thin-film layer. The composition contains a polyphenylene ether resin (A) and an amorphous -olefin copolymer (B). The resin (A) includes 95 to 99.95 mass % of a polyphenylene ether (i) and 0.05 to 5 mass % of a compound (ii) being at least one compound selected from the group consisting of: an organophosphorus compound having, in molecules thereof, a chemical structure represented by formula (I) or (II) (R in formula (II) is a trivalent saturated hydrocarbon group having a carbon number of 1 to 8 or a trivalent aromatic hydrocarbon group having a carbon number of 6 to 12); and a phosphonic acid, phosphonic acid ester, phosphinic acid, phosphinic acid ester, monocarboxylic acid, sulfonic acid, sulfinic acid, or carbonate other than the organophosphorus compound, relative to 100 mass %, in total, of components (i) and (ii).

##STR00001##

An embossing material that can be hardened and used for embossing lithography, comprised of a mixture of at least one polymerizable main component, and at least one secondary component. The invention also relates to a use of the embossing material for the primary forming of an embossing form.

A method produces a polysilane by reacting at least two silane monomers and at least one alkali metal. The silane monomers have the following structural units: at least one aryl group, at least one alkyl group, at least one alkenyl group, and at least three halogen atoms. Wherein at least three of the halogen atoms are bonded to a silicon atom of one of the silane monomers, and the reaction step takes place in an ether-containing solvent, particularly preferably dioxane. The obtained polysilane has a high molecular mass and, at 100 C., a viscosity of 1,500 to 3,000 Pa.Math.s. The polysilane is very suitable for being processed to form silicon carbide fibers and fiber composites.