Absorbent materials having modified surface characteristics and methods for making the same
AssigneeThe Procter & Gamble Company
InventorsLin Wang, Yumiko Hayashi, Ebrahim Rezai
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Abstract
An absorbent material that comprises a water-insoluble, water-swellable absorbent polymer. The absorbent material comprises a reactive polyether chemically bonded to the absorbent polymer whereby the contact angle of blood on a surface of the absorbent material attains from about 0 degree to about 40 degree. Because of the improved wettability with liquids, the absorbent material can provide higher absorbent characteristics with liquids, in particular with blood.
Claims13
An absorbent material having modified surface characteristics, comprising:
- a water-insoluble, water-swellable polymer;
- and
- a reactive hydrophilic compound chemically bonded to said water-insoluble, water-swellable polymer;
- wherein the contact angle of blood on a surface of said absorbent material is from about 0 degree to about 40 degree.
An absorbent material having modified surface characteristics, comprising:
- a water-insoluble, water-swellable polymer;
- a positive-charge supplying compound bonded to said water-insoluble, water-swellable polymer;
- and
- a non-ionic hydrophilic compound bonded to said water-insoluble, water-swellable polymer,
- wherein the contact angle of blood on a surface of said absorbent material is from about 0 to about 40 degree.
Dependencies are inferred from the claim text.