Encapsulated particle

US9085495B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Raymond A. Neff · Bloomfield Hills, US
• Alexander Gershanovich · Beverly Hills, US
• Donald C. Mente · Grosse Ile Township, US
• Rajesh Kumar · Marlborough, US

Key dates

• Filing date: May 4, 2012
• Grant date: Jul 21, 2015
• Expiry date: May 4, 2032

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C05G5/38
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

An encapsulated particle including a core particle, a base layer, and an outer layer is provided. The base layer is disposed about the core particle and comprises polycarbodiimide. The outer layer is disposed about the base layer and comprises wax. A method of forming the encapsulated particle including the steps of reacting an isocyanate in the presence of a catalyst to form the polycarbodiimide, encapsulating the core particle with the polycarbodiimide to form the base layer, and encapsulating the base layer with the wax to form the outer layer is also provided.