Dry construction composition wet-sprayable by means of a screw pump and containing a binder and a biosourced filler, and preparation and uses of such a composition

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United States of America Patent

PATENT NO 11845696
APP PUB NO 20180312440A1
SERIAL NO

15772198

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Abstract

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A dry construction composition is easily wet-sprayable by means of a screw pump, thus forming, after hardening, a durably mechanically resistant insulating material (λ<0.1 W·m−1·K−1). The composition contains: —A— at least one binder, itself including: —A1— at least one main binder containing lime and/or at least one alumina source and/or at least one calcium sulfate source, preferably at least one alumina source, —A2— at least one water-retaining agent, and —A3— preferably at least one surfactant; and —B— at least one biosourced filler, preferably of plant origin. The ratio B/A (liters/kg) is between 2 and 9. The composition is intended to be mixed with water in a water/binder ratio —A— of no lower than 0.8. Also disclosed is a wet composition, the preparation thereof, to the binder —A— taken in isolation, and to a method of spraying the composition onto a horizontal or vertical substrate or by molding.

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Patent Owner(s)

Patent OwnerAddress
PAREXGROUP SA92440 ISSY LES MOULINEAUX

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Cappellari, Marco Saint Quentin Fallavier, FR 3 9
Daubresse, Anne Saint Quentin Fallavier, FR 5 11
Desroses, Lisa Saint Quentin Fallavier, FR 2 6

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