Two phase absorbent composites
AssigneeKimberly-Clark Worldwide, Inc.
InventorsFeng Chen, Jian Qin
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Abstract
Described herein are absorbent composites containing a superabsorbent material and a fibril filler substantially distributed throughout the superabsorbent material. Also described herein are methods of producing absorbent composites containing a superabsorbent material and a fibril filler substantially distributed throughout the superabsorbent material. Compositions and methods described herein are useful in a variety of absorbent products.
Claims15
An absorbent composite comprising:
- a superabsorbent material;
- and
- a fibril filler substantially distributed throughout the superabsorbent material, wherein the fibril filler has a diameter in the range of from about 1 nm to about 75 nm, wherein the fibril filler is in a form comprising nanotubes;
- wherein the superabsorbent material consists of
- polyacrylic acid (PAA);
- wherein the fibril filler has an elastic modulus greater than the elastic modulus of the superabsorbent material.
A method of producing an absorbent composite, the method comprising:
- forming a mixture comprising:
- a polymerizable monomer of a superabsorbent material, wherein the polymerizable monomer is acrylic acids;
- a fibril filler, wherein the fibril filler has a diameter in the range of from about 1 nm to about 75 nm, wherein the fibril filler is in a form comprising nanotubes;
- water;
- optionally a neutralization agent;
- optionally an initiator, and
- optionally a crosslinker;
- and
- polymerizing the polymerizable monomer of a superabsorbent material in the mixture to produce an absorbent composite comprising a superabsorbent material and the fibril filler;
- wherein the fibril filler is substantially distributed throughout the superabsorbent material in the absorbent composite;
- and
- wherein the superabsorbent material consists of polyacrylic acid (PAA)
- wherein the fibril filler has an elastic modulus greater than the elastic modulus of the superabsorbent material.
A consumer product comprising an absorbent composite comprising a superabsorbent material and a fibril filler substantially distributed throughout the superabsorbent material, wherein the superabsorbent material consists of
- polyacrylic acid (PAA),
- wherein the fibril filler has an elastic modulus greater than the elastic modulus of the superabsorbent material, and
- wherein the fibril filler has a diameter in the range of from about 1 nm to about 75 nm,
- wherein the fibril filler is in a form comprising nanotubes.
Dependencies are inferred from the claim text.