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AssigneeThe Procter & Gamble Company
InventorsMattias Schmidt, Axel Meyer, Renae Dianna Fossum, Jean-Philippe Marie Autran, Ulrich Riegel, Thomas Daniel, Stefan Bruhns, Mark Elliott, Karl Haeberle
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The present invention relates to an absorbent structure suitable in, or being an adult or infant diaper or feminine hygiene article, comprising a water-absorbing material comprising water-absorbing particles that comprise a film coating, comprising an elastic film-forming polymer and a coalescing agent. The invention also relates to an absorbent structure comprising a water absorbent material obtainable by a process of: a) spray-coating water-absorbing polymeric particles with an elastic film-forming polymer in a fluidized bed reactor at a temperature in the range from 0° C. to 150° C. and b) heat-treatment of the coated polymeric particles at a temperature above 50° C., wherein in step a) and/or b) a coalescing agent is added.
An absorbent structure for use in an adult or infant diapers or feminine hygiene articles, the absorbent structure comprising a water-absorbing material, the water-absorbing material comprising super absorbent polymer particles coated with a film coating, the film coating comprising an elastic film-forming polyurethane and a coalescing agent, the coalescing agent being miscible to at least 10 wt. % with water at 25 C and 1 bar ambient pressure, the water-absorbing material having a CCRC and CRC of not less than 25 g/g, and/or a CS-SFC of at least 350×10−7 cm3 s/g, wherein the film coating is applied in an amount of 0.01% to 25% by weight based on the weight of the water-absorbing material and the coalescing agent is present in an amount of not more than 10% by weight based on the weight of the film coating.
Dependencies are inferred from the claim text.