Poly(Acrylic Acid) From Bio-Based Acrylic Acid And Its Derivatives
AssigneeThe Procter & Gamble Company
InventorsJane Ellen Godlewski, Janette Villalobos, Dimitris Ioannis Collias, Axel Meyer, Peter Dziezok, Juan Estaban Velasquez
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Abstract
Bio-based glacial acrylic acid, produced from hydroxypropionic acid, hydroxypropionic acid derivatives, or mixtures thereof and having impurities of hydroxypropionic acid, hydroxypropionic acid derivatives, or mixtures thereof, is polymerized to poly(acrylic acid) or superabsorbent polymer using the same processes as petroleum-derived glacial acrylic acid.
Claims54
A superabsorbent polymer composition produced from an acrylic composition, wherein said acrylic composition comprises an acrylic acid composition, wherein said acrylic acid composition consists of acrylic acid, acrylic acid derivatives, or mixtures thereof, wherein said acrylic acid composition comprises at least about 98 wt % acrylic acid, acrylic acid derivatives, or mixtures thereof, and wherein a portion of the remaining impurities in said acrylic acid composition is hydroxypropionic acid, hydroxypropionic acid derivatives, or mixtures thereof.
A poly(acrylic acid) composition produced from an acrylic composition, wherein said acrylic composition comprises an acrylic acid composition, wherein said acrylic acid composition consists of acrylic acid, acrylic acid derivatives, or mixtures thereof, wherein said acrylic acid composition comprises at least about 98 wt % acrylic acid, acrylic acid derivatives, or mixtures thereof, and wherein a portion of the remaining impurities in said acrylic acid composition is hydroxypropionic acid, hydroxypropionic acid derivatives, or mixtures thereof.
Dependencies are inferred from the claim text.