Casting material

Details Casting material Casting material

C - Chemistry, Metallurgy

08

K

C08K 3/36 (2006.01) C04B 14/06 (2006.01) C04B 20/04 (2006.01) C04B 26/02 (2006.01) C08F 2/44 (2006.01) C09D 5/34 (2006.01) C09D 7/12 (2006.01)

Patent

CA 2205589

In a casting composition comprising a curable syrup which contains a liquid monomer and polymer components optionally dissolved therein, and an inorganic filler which includes a quartz sand product, in order to simplify the production of white molded articles, it is proposed that a product, the individual grain of which consists in the core essentially of quartz and at the surface essentially of .alpha.-cristobalite (low- temperature modification) be selected as quartz sand product.

L'invention concerne une matière utilisée en fonderie, constituée d'une liqueur durcissable contenant un monomère liquide et, éventuellement, des composants polymères dissous dans ledit monomère, ainsi qu'une matière de remplissage inorganique contenant un produit de sable de quartz. Afin de simplifier la production d'articles moulés blancs, il est proposé que le produit de sable de quartz utilisé soit un produit dont chaque grain possède un noyau constitué essentiellement de quartz et une couche extérieure constituée essentiellement de cristobalite alpha (modification à basse température).

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