Large diameter slag wool, composition and method of making same

US9796635B1 · kind B1 · utility

Assignee

• USG INTERIORS, LLC · US

Inventors

• Wenqi Luan · Hawthorn Woods, US
• Martin W. Brown · Gurnee, US
• Tanya Keller · Red Wing, US
• Mike Hill · Red Wing, US
• Scott A. Bogen · Chicago, US
• Carlos Figi · River Falls, US
• William A. Frank · Lake Villa, US

Key dates

• Filing date: Jun 22, 2016
• Grant date: Oct 24, 2017
• Expiry date: Jun 22, 2036

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02P40/57
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

The disclosure provides a slag wool composition including about 60 to about 80 wt. % blast furnace slag and about 20 to about 40 wt. % basalt, based on the total weight of the inorganic raw materials, wherein the composition has an A/B ratio in a range of about 1.20 to about 1.70. The disclosure further provides a slag wool produced using the slag wool composition of the disclosure, wherein the slag wool has a fiber diameter in a range of about 4.0 microns to about 10.0 microns. The disclosure further provides a method for the manufacture of slag wool.