C - Chemistry – Metallurgy – 04 – B
Patent
C - Chemistry, Metallurgy
04
B
C04B 28/14 (2006.01) C04B 14/18 (2006.01) C04B 24/08 (2006.01) C04B 24/26 (2006.01) C04B 24/34 (2006.01) C04B 24/42 (2006.01) E04F 13/04 (2006.01)
Patent
CA 2504923
The present invention relates to a joint compound composition for building elements, particularly paper-faced plasterboards. This composition comprises: a) 50 to 60% of calcium sulphate hemihydrate; b) 5 to 15% of an organic binder in powder form; and c) 0.05 to 0.2% of a water repellent. The invention also relates to a method producing a structure, such as a partition, a wall trim or a ceiling. According to this method: - building elements are juxtaposed; - the joint compound composition according to the invention is mixed with water so as to obtain a joint compound; - the space between the building elements is filled by means of the joint compound obtained above, without using a tape; and - the joint compound is left to harden.
La présente invention concerne une composition pour enduit de jointoiement pour des éléments de construction, en particulier des plaques de plâtre à parement en papier. Cette composition comprend a) 50 à 60 % de sulfate de calcium semi-hydrate ; b) 5 à 15 % d'un liant organique sous forme de poudre ; et c) 0,05 à 0,2 % d'un hydrofugeant. L'invention concerne également un procédé de réalisation d'un ouvrage tel qu'une cloison, un habillage mural ou un plafond Selon ce procédé on juxtapose des éléments de construction ; on gâche la composition pour enduit selon l'invention avec de l'eau, de façon à obtenir un enduit ; on remplit l'espace entre les éléments de construction au moyen de l'enduit obtenu précédemment, sans utiliser de bande ; et on laisse l'enduit durcir.
Bonetto Christian
Domenech Marc
Petit Alain
Lafarge Platres
Norton Rose Or S.e.n.c.r.l. S.r.l./llp
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