Hybrid wax compositions for use in compression molded wax...

C - Chemistry – Metallurgy – 08 – L

Patent

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C08L 91/06 (2006.01) B29C 43/00 (2006.01) C11C 5/00 (2006.01) F23D 3/16 (2006.01) C11B 11/00 (2006.01)

Patent

CA 2690811

A hybrid wax compositions that are suitable for use in manufacturing wax articles (e.g., candles) by compression molding. The combination of a hydrogenated natural oil- based wax and a paraffin wax having a select distribution of hydrocarbon chain lengths provides the hybrid wax compositions with improved properties, such as improved compressive strength and improved de-molding characteristics, for example, as evidenced by reduced scarring and/or flashing. The hybrid wax compositions comprise: (a) a wax comprising a hydrogenated natural oil; and (b) a paraffin wax, wherein the paraffin wax comprises less than about 50% by weight of the hybrid wax composition, and wherein about 52% or greater of hydrocarbons in the paraffin wax have carbon chain lengths ranging from C25 to C29.

La présente invention concerne des compositions en cire hybride qui peuvent être utilisées dans la fabrication d'articles en cire (par exemple des bougies) par presse à compression. La combinaison d'une cire à base d'huile naturelle hydrogénée et d'une paraffine à distribution choisie de longueur de chaîne hydrocarbonée donne des compositions de cire hybrides dont les propriétés sont meilleures, comme par exemple une résistance à la compression améliorée ainsi que des caractéristiques de démoulage elles aussi améliorées comme démontré car une cicatrisation et/ou un flashing réduits. Les compositions de cire hybrides comprennent : (a) une cire comprenant une huile naturelle hydrogénée et (b) une paraffine qui comprend moins de 50% de son poids en paraffine et dans laquelle au moins 52% des hydrocarbones de la paraffine ont des longueurs de chaînes hydrocarbonées variant de C25 à C29.

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