Viscosity-modifiers for aqueous-based functional products containing mixed metal hydroxides

US5015409A · kind A · utility

Assignee

• THE DOW CHEMICAL COMPANY · US

Inventors

• Arthur E. Read, Jr. · Lake Jackson, US
• John L. Burba, III · Angleton, US
• Peter A. Doty · Midland, US
• Clarence R. Crabb · Midland, US

Key dates

• Filing date: Mar 11, 1988
• Grant date: May 14, 1991
• Expiry date: Mar 11, 2008

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C10N2050/01
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

Aqueous-based functional products or corrosive products such as cleansers, household products, commercial products, and personal care products are thickened or viscosity-modified by the addition of at least a small, but effective, amount of at least one crystalline mixed metal hydroxide conforming substantially to the formula EQU Li.sub.m D.sub.d T(OH).sub.(m+2d+3+n.a) A.sub.a.sup.n.xH.sub.2 O where m is zero to one, D is a divalent metal, d is from zero to 4, T is a trivalent metal, A represents at least one anion or negative-valence radial of valence n, where n is 1 or more, (m+2d+3+n.a) is equal to or greater than 3, (m+d) is greater than zero, and xH.sub.2 O represents excess waters of hydration.