Artificial snow and method of making the same

Details Artificial snow and method of making the same Artificial snow and method of making the same

C - Chemistry, Metallurgy

08

K

C08K 3/26 (2006.01) C08K 3/38 (2006.01) C08K 5/053 (2006.01) C08L 1/04 (2006.01) C08L 25/06 (2006.01) C08L 29/04 (2006.01) F25C 3/04 (2006.01) C08L 1/28 (2006.01)

Patent

CA 2301206

A moldable composition and method of making the same, the composition including a binding mixture and filler in the form of crystalline, irregular, approximately polygonally shaped particles. The binding mixture preferably includes polyvinyl-based binders such as polyvinyl alcohol, water, a cross-linking agent such as borax, and a humectant such as propylene glycol. Furthermore, a cellulose-based thickener may be added to the binding mixture, as may a pH-adjusting compound such as sodium carbonate. The crystalline particles preferably are ground styrene having a maximum dimension ranging from one-half to three millimeters.

L'invention concerne une composition pouvant être moulée, et un procédé de fabrication de cette composition. Cette dernière comprend un mélange liant et un agent de remplissage sous forme de particules cristallines, présentant une forme irrégulière polygonale. Ce mélange liant comprend, de préférence, des liants à base de polyvinyle, comme de l'alcool polyvinylique, de l'eau, un agent de réticulation tel que du borax, et un produit humectant comme du propylèneglycol. En outre, un épaississant à base de cellulose doit être ajouté au mélange liant, de même qu'un composé de réglage du pH tel que du carbonate de sodium. Les particules cristallines sont, de préférence, du styrène broyé présentant une dimension maximale comprise entre un demi et trois millimètres.

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