C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
C08L 33/10 (2006.01) C04B 26/06 (2006.01) C04B 40/00 (2006.01) C09D 7/00 (2006.01) G01N 31/22 (2006.01) G01N 33/38 (2006.01)
Patent
CA 2373109
A ready to use patch repair product is disclosed that includes a color change indicator therein. After the product has dried the color changes to signal that, if desired, the worker can perform other operations such as painting, sanding, etc on the surface. In one aspect of the invention, a substantially ammonia and ammonium salt free latex polymer is used as the resin binder component. This provides enhanced color stability in the stored product.
La présente invention concerne un produit de rapiéçage prêt à l'emploi comprenant un indicateur à changement de couleur. Après séchage du produit, la couleur change afin de signaler que l'opérateur peut, s'il le souhaite, entreprendre d'autres opérations telles que peinture, sablage, et d'autres opérations du même type sur la surface. Dans une réalisation de l'invention, on utilise un polymère de latex sans ammoniaque et sans sel d'ammonium comme composant liant de la résine. Ceci permet d'obtenir une stabilité de couleur améliorée dans le produit stocké.
Dap Products Inc.
Gowling Lafleur Henderson Llp
LandOfFree
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