Hot melt wetness indicator

Details Hot melt wetness indicator Hot melt wetness indicator

C - Chemistry, Metallurgy

09

J

117/171, 400/182

C09J 123/08 (2006.01) A61F 13/42 (2006.01) A61L 15/34 (2006.01) A61L 15/56 (2006.01) A61L 15/58 (2006.01) C08L 23/08 (2006.01) C09J 131/04 (2006.01) C09J 139/06 (2006.01) C09J 191/06 (2006.01)

Patent

CA 1332640

Abstract of the Disclosure A wetness indicating hot-melt adhesive which changes color in response to the presence of moisture is disclosed, which contains 20 to 70 wt. 4 of polymer, about 28 to 10 wt. % of which is water sensitive polymer; 25 to 60% of organic acid which is selected from a high acid fatty acid, or rosin acid, or a combination thereof; 0 to 40% of water soluble wax; 0 to 60 wt. % of glycerlo monostearate; 0 to 55 wt. % of hydrogenated castor oil; 0 to 15 wt. % of polyalkylene wax; 0 to 60 wt. % of com- patible plasticizer; and a wetness indicating agent which changes the color of the composition in response to moisture therein. The time of response of the color change can be controlled from about one second to a somewhat larger value as desired.

602051

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