Stable aqueous suspension of water-insoluble, calcium-binding aluminosilicates and organic suspending agents

US4179393A · kind A · utility

Assignee

• Henkel Kommanditgesellschaft auf Aktien (Henkel KGAA) · DE

Inventors

• Hans Andree · Leichlingen, DE
• Dieter Jung · Daaden, DE
• Martin Bischoff · Gelsenkirchen, DE
• Jens Conrad · Hilden, DE
• Josef Huppertz · Hilden, DE
• Gunter Jakobi
• Peter Krings
• Dieter Kuhling · Monheim, DE
• Herbert Reuter · Hilden, DE
• Wolfgang Rupilius · Düsseldorf, DE
• Horst Rutzen
• Harald Schnegelberger · Leichlingen, DE

Key dates

• Filing date: Feb 2, 1977
• Grant date: Dec 18, 1979
• Expiry date: Feb 2, 1997

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S516/07
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Stable, pumpable, aqueous suspensions of water-insoluble, calcium-binding aluminosilicates suitable as stock suspensions comprising (A) from 20% to 55% by weight of at least one finely-divided, water-insoluble silicate compound having a calcium-binding power of at least 50 mg CaO/gm of anhydrous active substance and having the formula, combined water not shown EQU (M.sub.2/n O).sub.x . Me.sub.2 O.sub.3 . (SiO.sub.2).sub.y where M is a cation of the valence n, exchangeable with calcium, x is a number of from 0.7 to 1.5, Me is aluminum or boron, and y is a number from 0.8 to 6, (B) from 0.2% to 5% by weight of at least one organic dispersing agent as follows: PA0 (1) lower alkylene oxide or glycide adducts of an N-higher alkyl/alkenyl-alkylenediamine, PA0 (2) lower alkylene oxide or glycide adducts of the reaction product of .epsilon.-caprolactam with an N-mono- or di-higher alkyl/alkenyl-alkylenediamine, PA0 (3) ethylene or propylene oxide adducts of long chain vicinal aminoalkanols, PA0 (4) the reaction product of ethylene glycol and a higher epoxyalkane and ethylene oxide adducts thereof.