Latex film compound with improved tear resistance

Details Latex film compound with improved tear resistance Latex film compound with improved tear resistance

C - Chemistry, Metallurgy

08

K

C08K 5/37 (2006.01) C08J 5/18 (2006.01) C08K 5/00 (2006.01) C08K 5/378 (2006.01)

Patent

CA 2353607

The invention relates to a method of enhancing the tear resistance, tensile strength, and the aging properties of a latex product by adding an antioxidant synergist with an antioxidant to a latex compound comprising of a polymer, a stabilizing system, a film surface conditioner and a curing system comprised of an activator, crosslinker and accelerator and to the latex products formed therefrom. Antioxidant synergists which can be used with the present invention include 2-mercaptobenzimidazole (MBI), 2-mercaptotoluimidazole (MTI), zinc 2-mercaptobenzimidazole (ZMBI) and zinc 2-mercaptotoluimidazole (ZMTI). The latex products formed may be gloves but can also include threads, balloons and other latex-related products.

L'invention concerne une méthode permettant d'améliorer la résistance aux déchirures, la résistance à la traction ainsi que les propriétés de vieillissement d'un produit en latex, cela en ajoutant un synergiste d'antioxydant et un antioxydant à un composé de latex constitué d'un polymère, d'un système de stabilisation, d'un agent de conditionnement de surface pelliculaire et un système de durcissement composé d'un activateur, d'un agent de réticulation et d'un accélérateur pour les produits formés à partir de ce latex. Les synergistes d'antioxydants pouvant être utilisés avec la présente invention comprennent le 2-mercaptobenzimidazole (MBI), le 2- mercaptotoluimidazole (MTI), le 2-mercaptobenzimidazole (MBIZ) de zinc et le 2- mercaptotoluimidazole (MTIZ) de zinc. Les produits de latex obtenus peuvent être des gants, mais également des fils, des ballons et d'autres articles dérivés du latex.

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