Layered silicates and water-resistant articles made therefrom

US5049237A · kind A · utility

Assignee

• ARMSTRONG WORLD INDUSTRIES, INC. · US

Inventors

• Walter J. Bohrn · Lancaster, US
• Richard A. Brubaker · Willow Street, US
• Shelly N. Garman · Lancaster, US
• Lewis K. Hosfeld · Mountville, US
• Kenneth K. Ko · New Garden Township, US
• Thomas M. Tymon · Lancaster, US

Key dates

• Filing date: Oct 30, 1989
• Grant date: Sep 17, 1991
• Expiry date: Oct 30, 2009

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T442/699
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

Disclosed are flocced mineral materials which may be utilized to prepare high temperature resistant, water resistant articles. These materials are prepared by utilizing, as a starting material, a gellable layered swelled silicate that has an average charge per structural unit that ranges from about -0.4 to -1 and which contains interstitial cations which promote swelling with a source of at least one species of multiamine derived cations.