Abstract:
L'invention concerne la préparation de N(dichlorophosphoryl)trichlorophosphazène. Ce procédé comporte un traitement au moyen de SO₂ du milieu résultant de la réaction PCl₅ et de NH₄Cl suivi du passage du milieu réactionnel dans un évaporateur en couche mince avant distillation du P₂NOCl₅ brut contenu dans ledit milieu. Cette technique permet l'élimination et la condensation ultérieure de SO₂, POCl₃ et SOCl₂ dans des conditions douces de pression et température.
Abstract:
L'invention concerne la préparation de N(dichlorophosphoryl) trichlorophosphazène à partir de pentachlorure de phosphore et de chlorure d'ammonium. Selon ce procédé, le produit de formule P₃NCl₁₂ présent dans le milieu réactionnel est traité par SO₂ alors que le milieu est maintenu à une température au plus égale à environ 30°C. Ce procédé conduit à l'obtention d'un phosphazène incolore ou très faiblement coloré.
Abstract:
Thin film batteries (TFB) are fabricated by a process which eliminates and/or minimizes the use of shadow masks. A selective laser ablation process, where the laser patterning process removes a layer or stack of layers while leaving layer(s) below intact, is used to meet certain or all of the patterning requirements. For die patterning from the substrate side, where the laser beam passes through the substrate before reaching the deposited layers, a die patterning assistance layer, such as an amorphous silicon layer or a microcrystalline silicon layer, may be used to achieve thermal stress mismatch induced laser ablation, which greatly reduces the laser energy required to remove material.
Abstract:
Die Erfindung betrifft aktive, hydroxyl- und haiogenhaltige polymere Phosphornitride, deren Halogenatome und Hydroxylgruppen an Phosphor gebunden sind, wobei die Phosphornitride etwa 35 bis 54 Gew.-% Phosphor, etwa 35 bis 47 Gew.-% Stickstoff, etwa 1 bis 20 Gew.-% Sauerstoff und etwa 0,1 bis 8 Gew.-% Chlor enthalten.
Abstract:
The invention relates to a method of producing an ethylenically unsaturated carboxylic acid or ester, preferably an α, β ethylenically unsaturated carboxylic acid or ester. The method includes contacting formaldehyde or a suitable source thereof with a carboxylic acid or ester in the presence of a catalyst and optionally in the presence of an alcohol. The catalyst comprises a nitrided metal oxide having at least two types of metal cations, M1 and M2, wherein M1 is selected from the metals of group 2, 3, 4, 13 (called also IIIA) or 14 (called also IVA) of the periodic table and M2 is selected from the metals of groups 5 or 15 (called also VA) of the periodic table. The invention extends to a catalyst system.
Abstract:
The invention concerns a fluorination method for obtaining fluorinated compounds. The method consists in reacting with an ionic fluoride of a monovalent cation a compound of formula (I), wherein: M represents H, an alkaline metal, a quaternary phosphonium group or a quaternary ammonium group; Y represents SO2, and m is 1, or Y is PO and m is 2; Z represents CR2, N or P; R1 represents a carbonaceous and/or electron-attracting group which has a Hammet parameter σ¿P? higher than 0.4; R?2¿ represents a carbonaceous and/or electron-attracting group; X represents a halogen other than a fluorine. The fluorinated compounds obtained are useful in particular as electrolyte in lithium batteries.
Abstract:
Die Erfindung betrifft neue anorganische mikroporöse Festkörper mit einer Gerüststruktur aus über ihre Ecken verknüpften AX₄-Tetraedern in dem mindestens 10% der X-atome Stickstoff sind, sowie Verfahren zur Herstellung dieser Festkörper