C - Chemistry – Metallurgy – 04 – B
Patent
C - Chemistry, Metallurgy
04
B
C04B 26/02 (2006.01) C04B 24/26 (2006.01) C04B 24/42 (2006.01) C04B 26/04 (2006.01) E04F 13/04 (2006.01)
Patent
CA 2418308
The invention relates to a jointing compound or plaster for construction elements, particularly paper--faced plasterboards. This plaster comprises, in percentages by weight with respect to the total weight of plaster: - 50 to 85% of a mineral filler; - 1 to 20% of an organic binder dispersible in an aqueous phase; - 1 to 15% of a silicate-based agent other than the mineral filler; - 0.2 to 5% of a hydrophobic agent which is a silicone derivative; - 0.05 to 5% of polyvinyl alcohol; and - water to make up to 100%. The subject of the invention is also a method of producing a work such as a partition, a wall covering or a ceiling.
L'invention concerne un enduit de jointoiement pour des éléments de construction, en particulier des plaques de plâtre à parement en papier. Cet enduit comprend, en pourcentages massiques rapportés à la masse totale d'enduit: 50 à 85 % d'une charge minérale; 1 à 20 % d'un liant organique dispersable en phase aqueuse; 1 à 15 % d'un agent silicaté autre que la charge minérale; 0,2 à 5 % d'un agent hydrophobe qui est un dérivé siliconé; 0,05 à 5 % d'alcool polyvinylique; de l'eau pour arriver à 100 %. L'invention a aussi pour objet un procédé de réalisation d'un ouvrage tel qu'une cloison, un habillage mural ou un plafond.
Bonetto Christian
Bourne-Chastel Pascal
Petit Alain
Lafarge Platres
Norton Rose Or S.e.n.c.r.l. S.r.l./llp
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