The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 31, 2020
Filed:
May. 25, 2012
Bernard Yrieix, Moret sur Loing, FR;
Benoit Morel, Buthiers, FR;
Genevieve Foray, Seyssuel, FR;
Agnes Bogner, Lyons, FR;
Bertrand Van DE Moortele, Lyons, FR;
Bernard Yrieix, Moret sur Loing, FR;
Benoit Morel, Buthiers, FR;
Genevieve Foray, Seyssuel, FR;
Agnes Bogner, Lyons, FR;
Bertrand van de Moortele, Lyons, FR;
Electricite de France, Paris, FR;
Abstract
The present invention relates to a solid thermally insulating material, essentially free of phyllosilicates, comprising (a) from 70 to 98% by volume of hydrophobic silica aerogel particles having an intrinsic density between 110 and 210 kg/m, (b) from 0.3 to 12% by volume of an organic binder formed by at least one organic polymer (b1) and at least one surfactant (b2), or by an amphiphilic organic polymer (b3), these volume fractions being determined by image analysis on thin sections of the solid material and being given relative to the total volume of the material, the aerogel particles having a particle size distribution that has at least two maxima, with a first maximum corresponding to an equivalent diameter (d) of less than 200 μm, preferably between 25 μm and 150 μm, and a second maximum corresponding to an equivalent diameter (D) between 400 μm and 10 mm, preferably between 500 μm and 5 mm. It also relates to a thermally insulating product containing at least one layer of this material.