Dust suppressing aggregate

US9353020B2 · 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: May 31, 2016
• Expiry date: Jul 19, 2032

Classification

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

Abstract

A dust suppressing aggregate includes a core particle and a dust suppressing agent. The dust suppressing agent comprises polycarbodiimide and is disposed about the core particle for suppressing dusting of the core particle. A method of forming the dust suppressing aggregate includes the steps of reacting isocyanates in the presence of a catalyst to form the polycarbodiimide and encapsulating the core particle with the polycarbodiimide to form the dust suppressing agent. A system for producing the dust suppressing aggregate includes the core particle, the isocyanates, and the catalyst.