Saint-Gobain Recherche

The present invention relates to a premix composition, for preparation of finishing compound, the premix composition comprising:- a binder,- preferably an additive,- a polysaccharide,- a clay, and- waterwherein the mass ratio of clay to polysaccharide is at least 0.9, preferably at least 1.The present invention also relates to a method for manufacturing the premix composition according to the invention and to a finishing compound comprising the premix composition according to the invention and at least one filler.

The invention relates to a gypsum board (10) comprising a first cover sheet (11), a second cover sheet (12) and a body (13) arranged in between, the body (13) comprising:- at least three longitudinal dense areas (141, 142, 143), made of a first gypsum-based material (14), two of which being arranged along each of the two longitudinal edges of the gypsum board, and- at least two longitudinal low density areas (151, 152), made of a second gypsum-based material (15), each longitudinal low density areas being arranged between two longitudinal dense areas,wherein the first gypsum-based material (14) has a density greater than the density of the second gypsum-based material (15).The invention also relates to a partition wall comprising a gypsum board according to the invention and to a method for manufacturing a gypsum board according to the invention.

Fire-resistant partition drywall (10) comprising a sub-structure, panels mounted on the sub-structure and a window (12), the window (12) being received in a housing formed by panels, the sub-structure comprising a window frame covered with panels, so as to obtain a panelled window frame.Method for making the fire-resistant partition drywall.

The present invention relates to a kit for forming a foamed waterproofing coating, to a foamed waterproofing coating formed from such kit, and to a coated substrate comprising such foamed waterproofing coating. It also relates to a process for waterproofing a substrate using such kit.

The present invention relates to a bituminous membrane comprising a milled mineral wool waste. It also relates to a method for manufacturing such bituminous membrane, and to method for soundproofing and/or waterproofing a substrate using such bituminous membrane.

Composition de verre pour fibre d'isolation comprenant, en pourcentages massiques: SiO<2> : entre 62,0% et 65,0%, Na<2>O: entre 14,0 et 15,5%, CaO: entre 6,0 et 9,0%, MgO : entre 1,5 et 4,0%, B<2>O<3> : entre 5,5 et 7,5%, Al<2>O<3> : entre 1,5 et 2,5%, K<2>O : entre 0 et 2,0%, autre (s) oxyde (s) : entre 0 et 5,0 % poids en cumulé, de préférence entre 0 et 2,0% en cumulé, dans lequel le ratio Na<2>O/B<2>O<3> est compris entre 1,90 et 2,80. Fibres d'isolation obtenues à partir de ladite composition et procédé de fabrication de telles fibres.

The present invention relates to a method for manufacturing a cement board from a cementitious paste comprising, based on the total dry matter, from 15 to 90 wt% of a reactive binder and from 10 to 80 wt% of fillers, and from 1 to 15 wt% of particles of cementitious hydrates material having a particle size from 500 to 2500 µm. The invention also relates to cement boards obtained by such process.

The present invention relates to a polycrystalline solid electrolyte material of the formula (I) M_3-z(Me^k+)_fX_3-z+k*f having at least one of its dimensions that is lower or equal to 100 µm, and having at least another dimension that is greater than or equal to 1 mm. The invention further concerns an electrolyte tape comprising said polycrystalline solid electrolyte material. Finally, the invention pertains to their preparation process comprising the steps of: disposing a compound of formula (I) or an ammonium complex thereof on a substantially planar surface, heating the compound of formula (I) or the ammonium complex thereof at a temperature ranging from 290 °C to 550 °C, and concomitantly or sequentially to the heating step, applying to the compound of formula (I) a pressure that is orthogonal to the substantially planar surface, said pressure ranging from 1.5 MPa to 30 MPa.

L'invention concerne une composition de matières premières adaptée pour être fondue et fibrée par centrifugation externe pour l'obtention d'une laine minérale.

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