Dry additive for plasters (Machine-translation by Google Translate, not legally binding)

Improved dry additive for plaster characterized by the fact that it is composed of a base of polycarboxylic acid, more specifically citric acid, to which is added colloidal silicon dioxide in a proportion of between 0.8% and 1.2% of the weight referred to acid, where the proposed additive is present...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: MONEO PECO, Luis, GARCIA DIEZ, José Joaquin, GIMENO BLANES, Francisco Javier, FLORES YEPES, José Antonio, PASTOR PEREZ, Joaquín Julián, BERNA SERNA, Juan Manuel
Format: Patent
Sprache:eng ; spa
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Beschreibung
Zusammenfassung:Improved dry additive for plaster characterized by the fact that it is composed of a base of polycarboxylic acid, more specifically citric acid, to which is added colloidal silicon dioxide in a proportion of between 0.8% and 1.2% of the weight referred to acid, where the proposed additive is presented as a dry powder, the amount by weight of additive to add to dry gypsum for use comprises from 0.06 grams to 2 grams for each 1000 grams of dry gypsum, so that the mixture with the gypsum whose properties are to be improved is carried out before mixing with water, and the additive can be incorporated in the dry mass of gypsum during its manufacture. (Machine-translation by Google Translate, not legally binding) Aditivo seco mejorado para yeso caracterizado por el hecho de que se compone de una base de ácido policarboxílico, más concretamente ácido cítrico, a la cual se le añade dióxido de silicio coloidal en proporción de entre un 0,8% y 1,2% del peso referido al ácido, donde el aditivo propuesto está presentado en forma de polvo seco, la cantidad en peso de aditivo para añadir al yeso seco para su utilización comprende desde los 0,06 gramos hasta los 2 gramos para cada 1000 gramos de yeso seco, de manera que la mezcla con el yeso cuyas propiedades se pretenden mejorar se realiza antes de la mezcla con agua, pudiendo incorporar el aditivo en la masa seca de yeso durante su fabricación.