Material such as film, fiber, woven and nonwoven fabric with adsorbancy

This invention describes a way to make a material that can soak up unwanted substances, even when they are present in very small amounts in air or liquids. The specific method involves creating a coating by mixing an iron-based chemical (ferric hydroxide) with a type of plastic (polyethylenimine) in water, then applying this mixture to a surface and drying it to create the absorbent material. This material can then be used in various forms like films or fabrics to clean air or fluids.

Why it matters: Filed in 2017, this adsorbent for low-concentration pollutants, particularly sulfur compounds, could be more relevant now due to increasingly stringent environmental regulations and a greater focus on indoor air quality. The need for effective removal of trace contaminants to meet tighter health or odor thresholds has likely grown.

Status: Not in forceListed as no longer active. The specific reason is not in the record we hold.
How hard to build: ModerateChemical mixing, coating, drying process

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