Highly efficient process for manufacture of exfoliated graphene

US8246856B2 · kind B2 · utility

Assignee

• DOW GLOBAL TECHNOLOGIES LLC · US

Inventors

• Mary Anne Leugers · Midland, US
• Brian C. Nickless · Bay City, US
• Michael S. Paquette · Midland, US
• Robert C. Cieslinski · Midland, US
• Shu Tao Chen · Shanghai, CN

Key dates

• Filing date: Jul 28, 2008
• Grant date: Aug 21, 2012
• Expiry date: Jul 28, 2028

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C01B32/15
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

A process for preparing oxidized graphite that provides exfoliated graphene, preferably with high surface area. The process uses considerably less chlorate than previously known systems.