摘要:
L'invention concerne un nouveau système d'atténuation du bruit et notamment un stratifié atténuant le bruit, plus simple, plus léger et plus efficace, composé de cinq couches spécifiques de matériau. Le stratifié comprend une chemise de conduit, une barrière d'humidité, une barrière anti-feu, un matériau d'atténuation acoustique ainsi qu'une feuille de support solide. On peut facilement introduire le stratifié dans diverses parties d'un compartiment de moteur à réaction afin d'atténuer le bruit produit par le moteur à réaction. On utilise des rivets creux afin de conduire l'énergie acoustique au stratifié atténuant le bruit. Ce nouveau moyen destiné à conduire l'énergie acoustique au stratifié du compartiment du moteur à réaction permet d'obtenir uns sytème anti-gel amélioré, un fonctionnement plus efficace des moteurs à réaction ainsi qu'une meilleure dissipation de l'énergie acoustique.
摘要:
A self-priming pressure-sensitive adhesive bonding tape is provided having a layer of a primary pressure-sensitive adhesive metarial coated onto one or more surfaces with a film of a secondary pressure-sensitive adhesive material. Both the primary and secondary pressure-sensitive adhesives are modified by the addition of adhesion promoters to enhance the wetting characteristics of the tape. The film thickness of the secondary pressure-sensitive adhesive is such that the film has discontinuities which enable at least a portion of the primary pressure-sensitive adhesive layer to be directly exposed to the substrate. Bonding is accomplished with the participation of both the primary and secondary pressure-sensitive adhesives.
摘要:
The liner provided metallic shell having an outer-facing surface and an inner-facing surface, said inner-facing surface including a cured enamel coating thereon comprising a solids mixture of an epoxy resin, a phenolic resin, carboxypolyolefin resin and polyester resin; and a shaped thermoplastic elastomer member adhered to said enamel inner surface.
摘要:
A thin film piezoelectric device has an epitaxial metal thin film (4) on a silicon substrate (2) and a PZT thin film (5) on the metal thin film, the PZT thin film (5) having a Ti/(Ti+Zr) atomic ratio between 0.65 and 0.90. Preferably the metal film (4) comprises at Pt group metal and is formed on an oriented faceted buffer layer (3) comprising zirconium oxide and/or rare earth oxide. A film bulk acoustic resonator having an extremely broad band is realized.
摘要:
A coated metal reinforcement element for polymeric or elastomeric materials comprises a coating of: a polymer or prepolymer compatible with and co-polymerizable, co-vulcanizable or cross-linkable with said polymeric or elastomeric material to be reinforced, and bearing functional groups; either covalently bonding to the metal surface of said reinforcement element; or forming covalent bonds with the outward directed first functional groups of a mono- or multimolecular layer of a bifunctional adhesion promotor intercalated between said metal and said coating and bound to said metal by its second functional groups. A method for the coating includes a one step and a two step procedure.
摘要:
La présente invention se rapporte à des pigments minéraux de teinte jaune vif clair à orangé, à base de bismuth, très solides, répondant à la formule générale suivante :
Bi V(1-n) Xn O(4-3n)
dans laquelle X est un halogène ou un mélange d'halogènes et n peut varier de 0 à 1. L'invention concerne également le procédé de fabrication de tels pigments.
摘要翻译:颜料基于赋予黄色着色的钒酸铋和包含橙色组分的卤代铋的混合物。 矿物颜料符合式BiV(1-n)XnO(4-3)n(I); X =卤素或卤素混合物; 并且n =大于0且小于1.独立权利要求也包括在制备颜料及其应用中。
摘要:
A thin film piezoelectric device has an epitaxial metal thin film (4) on a silicon substrate (2) and a PZT thin film (5) on the metal thin film, the PZT thin film (5) having a Ti/(Ti+Zr) atomic ratio between 0.65 and 0.90. A film bulk acoustic resonator having an extremely broad band is realized.