Dust free powdery building material composition

C - Chemistry – Metallurgy – 04 – B

Patent

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Details

C04B 24/04 (2006.01) C04B 24/08 (2006.01) C04B 28/02 (2006.01) C04B 40/06 (2006.01)

Patent

CA 2758761

The invention relates to a pulverulent building material composition, preferably a factory dry mortar and in particular a tile adhesive, joint grout, knifing filler, sealing slurry, repair mortar, equalization mortar, basecoat adhesive, adhesive for composite thermal insulation systems (CTISs), mineral plaster or render, fine knifing filler or screed system, containing an ester of A) at least one compound selected from the group consisting of neopentyl glycol, 2-methyl-2-(hydroxymethyl)-1,3- propanediol and pentaerythritol with B) a carboxylic acid component.

L'invention porte sur une composition pulvérulente de matériau de construction, de préférence un mortier sec préfabriqué et, en particulier, une colle pour carrelage, un mastic de jointoiement, un bouche-pores, un badigeon d'étanchéité, un mortier de réparation, un mortier d'égalisation, une colle pour armatures, une colle pour systèmes composites d'isolation thermique (WDVS), un enduit minéral, un produit à spatuler fin et des systèmes de chape, contenant un ester A) de l'acide 2-éthylhexanoïque et B) d'un alcool ayant un point d'ébullition d'au moins 160°C. L'invention porte en outre sur la préparation de ces produits, ainsi que sur l'utilisation des esters selon l'invention dans des compositions pulvérulentes de matériau de construction pour diminuer la formation de poussières.

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