Poly(acrylic acid) from bio-based acrylic acid and its derivatives

US10344108B2 · kind B2 · utility

Assignee

• The Procter & Gamble Company · US

Inventors

• Jane Ellen Godlewski · Loveland, US
• Janette Villalobos Lingoes · Cincinnati, US
• Dimitris Ioannis Collias · Mason, US
• Axel Meyer · Frankfurt am Main, DE
• Peter Dziezok · Hochheim, DE
• Juan Esteban Velasquez · Cincinnati, US

Key dates

• Filing date: Sep 18, 2017
• Grant date: Jul 9, 2019
• Expiry date: Nov 28, 2037

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/31855
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

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.