C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
C08L 91/06 (2006.01) C04B 28/14 (2006.01) C08K 5/01 (2006.01) C08L 29/04 (2006.01)
Patent
CA 2742932
Provided herein are an aqueous wax emulsion, comprising water; a paraffinic hydrocarbon; polyvinyl alcohol and a wax component comprising synthetic olefin wax. Such emulsions are also useful for and disclosed herein are settable gypsum compositions and water- resistant wallboard formed therefrom. Also included herein is a montan wax substitute for use in an aqueous montan-based wax emulsion having paraffinic hydrocarbon, a wax component, water and polyvinyl alcohol wherein the wax component includes the montan wax substitute in place of use of a montan wax in the wax component such that the montan wax substitute is about 1 part to about 100 percent of the wax component and includes a synthetic olefin wax.
L'invention concerne une émulsion de cire aqueuse qui comprend: de l'eau, un hydrocarbure paraffinique; un alcool polyvinylique et un composant de cire comprenant une cire oléfinique synthétique. Les émulsions décrites sont également utiles pour des compositions de gypse durcissables et des panneaux résistants à l'eau formés à partir de celles-ci. L'invention comprend aussi un susbstitut de cire de montan s'utilisant dans une émulsion aqueuse de cire de montan comportant un hydrocarbure paraffinique, un composant de cire, de l'eau et un alcool polyvinylique, le composant de cire comprenant le substitut de cire de montan au lieu d'une cire de montan dans le composant de cire, ledit substitut représentant environ 1 partie pour environ 100 pour cent du composant de cire et comprenant une cire oléfinique synthétique.
Burns John Hartley
Mahoney Dennis Michael
Gowling Lafleur Henderson Llp
Henry Company Llc
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