Adhesive applicator crayon

C - Chemistry – Metallurgy – 09 – J

Patent

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Details

C09J 139/06 (2006.01) C08K 5/09 (2006.01) C08L 39/06 (2006.01) C09J 11/00 (2006.01)

Patent

CA 2256705

Adhesive compositions exhibiting fast cure time in solid form, e.g. in the form of an applicator crayon or glue stick. The adhesive exhibiting polymer of the composition is based on a mixture of critical amounts of high molecular weight polyvinylpyrrolidone polymer, with a lower molecular weight polyvinylpyrrolidone polymer, with water, an organic solvent, and a salt of a long-chain fatty acid, e.g. sodium stearate. Color indicators and other optional ingredients, e.g. mildewcide, can be included.

L'invention concerne des compositions adhésives faisant preuve d'un temps de durcissement rapide sous forme solide, telles qu'un crayon applicateur ou bâtonnet de colle. Le polymère de cette composition présente des propriétés adhésives et est fabriqué à partir d'un mélange de quantités critiques de polymère polyvinylpyrrolidone à poids moléculaire élevé avec un polymère polyvinylpyrrrolidone à faible poids moléculaire, avec de l'eau, un solvant organique et un sel d'un acide gras à longue chaîne, tel que le stéarate de sodium. On peut y inclure des indicateurs colorés et d'autres ingrédients éventuels, tels que des agents anticryptogamiques.

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