Hot melt wetness indicator
AssigneeNational Starch and Chemical Investment Holding Corporation
InventorGary Raykovitz
Life of this patent
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Abstract
A wetness indicating hot melt adhesive composition comprising: a) a graft copolymer of i. about 40-80% by weight of vinyl monomer; and ii. about 20-60% by weight of water-soluble polyalkylene oxide polymer having a molecular weight of about 3,000-20,000 and a polymerized ethylene oxide content of at least 50% by weight; and b) an effective amount of a wetness indicating agent.
Claims11
A disposable absorbent article comprising a moisture absorbent substrate, and a water resistant covering for said absorbent substrate, at least one portion of the inner surface of the water resistant covering coated with a wetness indicating hot melt adhesive composition consisting essentially of:
- a) a graft copolymer of
- i. about 40-80% by weight of vinyl monomer selected from the group consisting of vinyl acetate, methyl acrylate, ethyl acrylate and mixtures thereof;
- and
- ii. about 20-60% by weight of water soluble polyalkylene oxide polymer having a weight average molecular weight of about 3,000-20,000 and a polymerized ethylene oxide content of at least 50% by weight;
- b) an effective amount of a wetness indicating agent;
- and
- c) 0-90% by weight of a compatible tackifying resin.
Dependencies are inferred from the claim text.