Casting mass, in particular for the production of kitchen...

C - Chemistry – Metallurgy – 08 – K

Patent

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Details

C08K 3/00 (2006.01) C08L 33/12 (2006.01) E03C 1/18 (2006.01)

Patent

CA 2554134

According to the invention, a casting mass, in particular, for the production of kitchen sinks, moulded sanitaryware, or kitchen worktops may be produced, which permits a reduction in the reject quota as a result of defects, whereby a moulding mass is used, comprising a syrup based on an acrylate monomer and an inorganic filler material, at a proportion of 45 to 85 wt. % of the casting mass, characterised in that the content of the filler material comprises a first and a second filler fraction, whereby the first filler fraction is made from filler particles with unrefracted particle shape and the second filler fraction is made up of filler particles with a higher specific density than the first filler fraction and the weight proportion of the first filler fraction is greater than the weight proportion of the second filler fraction.

L'objectif de cette invention est de produire une masse de coulée, en particulier pour la fabrication d'éviers de cuisine, d'éléments sanitaires moulés et de plans de travail de cuisine, réduisant le taux de rebut associé à des défauts lors de la fabrication. A cet effet, la masse de coulée utilisée contient un sirop à base de monomère d'acrylate et une matière de charge inorganique en proportion de 45 à 85 % en poids de ladite masse de coulée. Cette masse de coulée se caractérise en ce que la proportion de matière de charge comporte une première et une seconde fraction de charge, la première fraction de charge étant constituée de particules de charge à structure granuleuse non brisée et la seconde fraction de charge étant constituée de particules de charge présentant une densité spécifique supérieure à celle de la première fraction de charge, et la proportion en poids de la première fraction de charge est supérieure à la proportion en poids de la seconde fraction de charge.

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