Process for manufacturing extruded alkyl sulfate particles

US8058222B2 · kind B2 · utility

Assignee

• The Procter & Gamble Company · US

Inventors

• Paul Anthony Gould · Grafton, GB
• Hao Hu · Tangxia, CN
• Machiel Jacob Nelemans · Woluwe-Saint-Lambert - Sint-Lambrechts-Woluwe, BE
• SiCong Hou · Beijing, CN

Key dates

• Filing date: Jul 16, 2009
• Grant date: Nov 15, 2011
• Expiry date: Jul 22, 2029

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C11D1/29
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Process for manufacturing particles, the process comprising the steps of: feeding a feed material comprising from 40 to 70% of alkyl sulfate surfactant(s) and from 12 to 30% of water to an extruder comprising an extrusion head, mechanically working and cooling the feed material within the extruder to form an extrudable mass, extruding the extrudable mass through the extrusion head to form strand(s), and forming particles from the strand(s), wherein the alkyl sulfate surfactant(s) comprise at least 50% of C6-C14 alkyl sulfate surfactant(s).