The present invention provides a translucent absorbent composite having a substrate with a light transmittance of at least about 60% and a flexible superabsorbent binder polymer composition applied to the substrate. The polymer composition may be prepared from the reaction product of a monomer solu
The present invention provides a translucent absorbent composite having a substrate with a light transmittance of at least about 60% and a flexible superabsorbent binder polymer composition applied to the substrate. The polymer composition may be prepared from the reaction product of a monomer solution including at least 15% by mass monoethylenically unsaturated monomer selected from carboxylic acid, carboxylic acid salts, sulphonic acid, sulphonic acid salts, phosphoric acid, or phosphoric acid salts; an acrylate or methacrylate ester that contains an alkoxysilane functionality; a copolymerizable hydrophilic glycol containing an ester monomer; an initiator system; and a neutralizing agent. The unsaturated monomer is neutralized to at least 25 mol % and the flexible superabsorbent binder polymer composition has a residual monoethylenically unsaturated monomer content of less than about 1000 ppm. The absorbent composite has a light transmittance of at least 45%. Also provided are absorbent articles containing the absorbent composite.
대표청구항▼
The invention claimed is: 1. A translucent absorbent article comprising a backing layer and an absorbent layer; wherein the absorbent layer is positioned adjacent the backing layer; wherein the absorbent layer comprises a substrate and a flexible superabsorbent binder polymer composition applied to
The invention claimed is: 1. A translucent absorbent article comprising a backing layer and an absorbent layer; wherein the absorbent layer is positioned adjacent the backing layer; wherein the absorbent layer comprises a substrate and a flexible superabsorbent binder polymer composition applied to the substrate; wherein the flexible superabsorbent binder polymer composition comprises the reaction product of: at least 15% by mass monoethylenically unsaturated monomer selected from carboxylic acid, carboxylic acid salts, sulphonic acid, sulphonic acid salts, phosphoric acid, and phosphoric acid salts; a plasticizer; an acrylate or methacrylate ester that contains an alkoxysilane functionality; a chain transfer agent; a transition metal salt; an initiator system; and a neutralizing agent; wherein the flexible superabsorbent binder polymer composition has a weight average molecular weight of from about 100,000 to about 650,000 g/mole; wherein the flexible superabsorbent binder polymer composition has a viscosity after 16 hours of less than about 10,000 cps; wherein the flexible superabsorbent binder polymer composition has a residual monoethylenically unsaturated monomer content of less than about 1000 ppm; wherein the absorbent layer has a light transmittance of at least 45% and the backing layer has a light transmittance of at least 60%; and wherein in the absorbent article has a minimum light transmittance of at least 45%. 2. The translucent absorbent article of claim 1, wherein the plasticizer is a polyethylene glycol. 3. The translucent absorbent article of claim 1, wherein the absorbent article has a perimeter region and a central region, the backing layer is present in both the perimeter region and the central region, and the absorbent layer is positioned on the backing layer and in the central region of the absorbent article. 4. The translucent absorbent article of claim 3, wherein the perimeter region of the absorbent article has a light transmittance of at least 60% and the central region of the absorbent article has a light transmittance of at least 45%. 5. The translucent absorbent article of claim 4, wherein the perimeter region of the absorbent article has a light transmittance of at least 80% and the central region of the absorbent article has a light transmittance of between about 55% and about 79%. 6. The translucent absorbent article of claim 1, further comprising a liner layer, wherein the liner layer is positioned in the absorbent article such that the absorbent layer is positioned between the liner layer and the backing layer, wherein the liner layer has a light transmittance of at least 60%. 7. The translucent absorbent article of claim 6, wherein the absorbent article has a perimeter region and a central region, the backing layer and the bodyside liner are each present in both the perimeter region and the central region, and the absorbent layer is positioned between the bodyside liner and the backing layer only in the central region of the absorbent article. 8. The translucent absorbent article of claim 1, wherein the absorbent layer has an overall thickness of between about 0.25 mm to about 5.0 mm. 9. The translucent absorbent article of claim 8, wherein the absorbent layer has an overall thickness of between about 0.25 mm to about 1.5 mm. 10. The translucent absorbent article of claim 1, further comprising a garment attachment adhesive applied to a side of the backing layer opposite the absorbent layer, wherein the garment attachment adhesive has a light transmittance of at least 60%. 11. The translucent absorbent article of claim 10, wherein the garment attachment adhesive has a light transmittance of at least 80%. 12. The translucent absorbent article of claim 10, further comprising a peel strip attached to the garment adhesive, wherein the peel strip has a light transmittance of at least 60%. 13. The translucent absorbent article of claim 12, wherein the peel strip has a light transmittance of at least 80%. 14. The translucent absorbent article of claim 1 further comprising flaps, wherein the flaps have a light transmittance of at least 45%. 15. The translucent absorbent article of claim 14 further comprising a body contacting surface, a surface opposed the body contacting surface, and longitudinal edges extending along an edge of the absorbent article, wherein the absorbent layer is positioned between the body contacting surface and the surface opposed the body contacting surface, and wherein the flaps extend from the longitudinal edges of the absorbent article.
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