Coating composition comprising solids having reversible stress-induced fluidity

US5418271A · kind A · utility

Assignee

• THE DOW CHEMICAL COMPANY · US

Inventors

• John L. Burba, III · Angleton, US
• Peter A. Doty · Midland, US
• Christopher P. Christenson · Lake Jackson, US
• Susan K. Falcone · Clute, US
• Andrea Hazlitt · Lake Jackson, US
• Thomas M. Knobel · Hackensack, US
• Wilfred C. Meyer · Midland, US
• Arthur E. Read, Jr. · Lake Jackson, US
• Edgar F. Hoy · Kingwood, US
• Avis Lloyd McCrary · Conroe, US
• Ha Q. Pham · Lake Jackson, US
• Stanley F. Simpson · Lake Jackson, US
• Steve A. Sims · Angleton, US
• Betty J. Smith · Brazoria, US

Key dates

• Filing date: Oct 11, 1991
• Grant date: May 23, 1995
• Expiry date: Oct 11, 2011

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S526/932
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Coating formulations which behave as elastic solids having reversible stress-induced fluidity are prepared by creating a fluid having distributed therein effective amounts of ionic charge sites and countercharge sites. For instance, elastic solids having reversible stress-induced fluidity are prepared by combining liquid formulations with a dispersion of 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.multidot.a) (A.sup.n).sub.a .multidot.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 radical of valence n and a is the amount of A, where n is 1 or more, (m+2d+3+n.multidot.a) is equal to or greater than 3, (m+d) is greater than zero, and xH.sub.2 O represents excess waters of hydration, if any. The coating formulations include, for example, paints, resin coatings, adhesives, de-icers, curable coatings, dryable coatings, and hardenable coatings.