Abstract: The invention relates to an uncured thermal and/or sound insulation product, based on mineral wool, advantageously on glass wool, that is in the form of a ply comprising a mineral wool layer sized by at least one binder, said sized layer having: a surface density, or basis weight, of less than or equal to 350 g/m2, preferably less than or equal to 300 g/m2, or less than or equal to 250 g/m2, and, optionally, greater than or equal to 200 g/m2, a micronaire of at most 3 under 5 grams, preferably of at most 15 l/min, better still of at most 12 l/min, and of at least 9 l/min, and the ply having a thickness of greater than 10 mm, or greater than or equal to 15 mm, or even greater than or equal to 25 mm. The invention makes it possible to propose a thermal and/or sound insulation product that is lighter while retaining satisfactory thermal and/or sound insulation properties and a good mechanical strength.

Abstract: A method of making a board or mat, includes forming a liquid slurry with solids including inorganic fibers and cellulose fibers, forming a web from the slurry on at least one foraminous element, extracting water from the web, and drying the web to make a product, wherein the pH of the liquid slurry including the inorganic fibers and cellulose fibers is in the pH range of 2-6 and wherein the cellulose fibers have a Schopper-Riegler index of ?50 according to ISO 5267.

Abstract: The purpose of the present invention is to provide an inorganic fiber laminate having improved uniformity of surface density, as well as provide a vacuum insulation material using the same, and a manufacturing method for the same. The present invention relates to an inorganic fiber laminate (10) at least including a first inorganic fiber mat (1) that has a high-surface-density section (1a) and a low-surface-density section (1b), and a second inorganic fiber mat (2) that has a high-surface-density section (2a) and a low-surface-density section (2a), wherein the high-surface-density section (1a, 2a) of the first inorganic fiber mat (1) and/or the second inorganic fiber mat (2) are/is laminated on the low-surface-density section (1b) of the first inorganic fiber mat (1), and the high-surface-density section (1a, 2a) of the first inorganic fiber mat (1) and/or the second inorganic fiber mat are/is laminated on the low-surface-density section (2b) of the second inorganic fiber mat (2).

Abstract: The purpose of the present invention is to provide an inorganic fiber laminate having improved uniformity of surface density, as well as provide a vacuum insulation material using the same, and a manufacturing method for the same. The present invention relates to an inorganic fiber laminate (10) at least including a first inorganic fiber mat (1) that has a high-surface-density section (1a) and a low-surface-density section (1b), and a second inorganic fiber mat (2) that has a high-surface-density section (2a) and a low-surface-density section (2a), wherein the high-surface-density section (1a, 2a) of the first inorganic fiber mat (1) and/or the second inorganic fiber mat (2) are/is laminated on the low-surface-density section (1b) of the first inorganic fiber mat (1), and the high-surface-density section (1a, 2a) of the first inorganic fiber mat (1) and/or the second inorganic fiber mat are/is laminated on the low-surface-density section (2b) of the second inorganic fiber mat (2).

Abstract: The invention relates to an uncured thermal and/or sound insulation product, based on mineral wool, advantageously on glass wool, that is in the form of a ply comprising a mineral wool layer sized by at least one binder, said sized layer having: a surface density, or basis weight, of less than or equal to 350 g/m2, preferably less than or equal to 300 g/m2, or less than or equal to 250 g/m2, and, optionally, greater than or equal to 200 g/m2, a micronaire of at most 3 under 5 grams, preferably of at most 15 l/min, better still of at most 12 l/min, and of at least 9 l/min, and the ply having a thickness of greater than 10 mm, or greater than or equal to 15 mm, or even greater than or equal to 25 mm. The invention makes it possible to propose a thermal and/or sound insulation product that is lighter while retaining satisfactory thermal and/or sound insulation properties and a good mechanical strength.

Abstract: The invention relates to a method for manufacturing vacuum insulation panels with a fiber core, comprising the steps of: providing a core blank of fibers, compressing the core blank to a predetermined final thickness for forming the core, evacuating a foil sleeve enclosing the core up to a pressure of ?1 mbar, and sealing the foil sleeve. The method according to the invention is characterized by the fact that, in the compression step, the core blank is arranged between two cover elements and is mechanically compressed therebetween, that the core is kept under compression pressure until the foil sleeve is sealed, and that the compression step is performed at the place of manufacture at room temperature without thermal impact. Thus, a method for manufacturing vacuum insulation panels with a fiber core can be improved such that it can be performed with reduced energy requirement and yet the insulating effect of the vacuum insulation panels does not suffer therefrom.

Abstract: The invention relates to a method for manufacturing vacuum insulation panels with a fiber core, comprising the steps of: providing a core blank of fibers, compressing the core blank to a predetermined final thickness for forming the core, evacuating a foil sleeve enclosing the core up to a pressure of ?1 mbar, and sealing the foil sleeve. The method according to the invention is characterized by the fact that, in the compression step, the core blank is arranged between two cover elements and is mechanically compressed therebetween, that the core is kept under compression pressure until the foil sleeve is sealed, and that the compression step is performed at the place of manufacture at room temperature without thermal impact. Thus, a method for manufacturing vacuum insulation panels with a fiber core can be improved such that it can be performed with reduced energy requirement and yet the insulating effect of the vacuum insulation panels does not suffer therefrom.

Abstract: A device for manufacturing inorganic fibers by internal centrifugal spinning including: a centrifugal spinner configured to form inorganic fibers by fiberizing from molten inorganic material and at least one ring configured to spray water onto the inorganic fibers being formed. The device makes it possible to manufacture dry inorganic fibers thereby making energy savings.