The Flexible Absorbent Binder (FAB), is a liquid coating that, once dry, forms a cross-linked, water absorbent hydrogel film on many substrates. The coating binds glass, metal, plastics, cellulose, and polypropylene, and may bind covalently to hydroxy-functional surfaces. The coating can also absorb moisture, bodily fluids, and other aqueous liquids; FAB may absorb many times its own weight in water, including salt water and potentially acidic solutions.
The final coating may be transparent, gas permeable, and lubricious when wet. Potential uses for FAB cover a wide range of applications, including wound care, packaging, textiles, pharmaceuticals, and construction. At higher coatweights, FAB forms hydrogels that can be used as lubricious coatings. FAB may be applied from an aqueous solution using conventional coating equipment.
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