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CA1062984A
Expired / Lapsed
CA
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Stable aqueous suspension of water-insoluble, calcium-binding aluminosilicates and organic suspending agents
Assignee: Henkel AG and Co KGaA
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Filing: 1975-10-08
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Granted: 1979-09-25
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Expires: 1995-10-08
Abstract
Abstract ABSTRACT OF THE DISCLOSURE Aqueous suspensions of water-insoluble, calcium-binding aluminosilicates with an improved stability against settling com-prising at least 20% 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 (M2/n0)x . Me203 . (Sio2)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, and at least 0.5% by weight of an organ-ic dispersing agent as follows: 1) an organic, macromolecular polymer with carboxyl and/or hydroxyl groups, 2) an organic phosphonic acid with at least one additional phosphonic or carboxylic acid group, 3) an alkyl acid phosphate having 3 to 20 carbon atoms in the alkyl 4) a nonionic surface-active compound with a turbidity point in aqueous butoxyethoxyethanol according to DIN 53917 of below 90°C 5) a surface-active sulfonate, and the remainder an aqueous liquor. The said suspensions are pumpable and suitable as stock solution in the preparation of washing agent compositions, . - A -
Inventors
- 👤 Dieter Kuhling
- 👤 Herbert Reuter
- 👤 Peter Krings
- 👤 Josef Huppertz
Bibliographic Details
Application Number
—
Jurisdiction
CA
Data Source
google_patents
Last Synchronized
2026-11-01 14:55
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/02; C11D3/12; C11D3/124; C11D3/1246; C11D3/128; C11D3/1286; Y; Y10; Y10S; Y10S516/00; Y10S516/922
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
243 words
An aqueous suspension having a pH of between 7 and 12 of water-insoluble, calcium-binding aluminosilicates with an improved stability against settling consisting es-sentially of (A) from 20% to 50% by weight on the anhydrous basis of at least one crystalline finely-divided, water-in-soluble 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 (m2/nO)x . Me2O3 . (SiO2)y where M is a cation of the valence n, exchangeable with cal-cium, selected from the group consisting of sodium, lithium, potassium, ammonium,magnesium, cation of water-soluble primary, secondary or tertiary alkylamines or alkylolamines with not more than 2 carbon atoms per alkyl or not more than 3 carbon atoms per alkylol, 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, and (B) from 0.5% by weight of at least one organic dispersing agent selected from the group consisting of the free acids and alkali-metal salts of (1) an organic phosphonic acid having at least one further acid group selected from the group consisting of phosphonic acid and carboxyl, (2) an alkyl acid phosphate emulsifier having from 3 to 20 carbon atoms in the alkyl, and (3) a nonionic surface-active compound having a turbidity point of a 1% solution in water of below room temperature, in water, said aqueous suspension being capable of being pumped after 24 hours of standing.
Claim 2
Dependent Claim
243 words
An aqueous suspension having a pH of between 7 and 12 of water-insoluble, calcium-binding aluminosilicates with an improved stability against settling consisting es-sentially of (A) from 20% to 50% by weight on the anhydrous basis of at least one crystalline finely-divided, water-in-soluble 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 (m2/nO)x . Me2O3 . (SiO2)y where M is a cation of the valence n, exchangeable with cal-cium, selected from the group consisting of sodium, lithium, potassium, ammonium,magnesium, cation of water-soluble primary, secondary or tertiary alkylamines or alkylolamines with not more than 2 carbon atoms per alkyl or not more than 3 carbon atoms per alkylol, 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, and (B) from 0.5% by weight of at least one organic dispersing agent selected from the group consisting of the free acids and alkali-metal salts of (1) an organic phosphonic acid having at least one further acid group selected from the group consisting of phosphonic acid and carboxyl, (2) an alkyl acid phosphate emulsifier having from 3 to 20 carbon atoms in the alkyl, and (3) a nonionic surface-active compound having a turbidity point of a 1% solution in water of below room temperature, in water, said aqueous suspension being capable of being pumped after 24 hours of standing.
Claim 3
Dependent Claim
36 words
The aqueous suspension of claim 1 wherein said cry-stalline silicate compound has the following interference lines in the x-ray diffraction diagrams as d-values in .ANG. obtained with Ca-Ka radiation: 4.1; 3.6B; 3.38; 3,26; 2.96; 2.73; 2.60.
Claim 4
Dependent Claim
34 words
The aqueous suspension of claim 1 wherein said crystalline silicate compound has the following interference lines in the x-ray diffraction diagrams as d-values in .ANG. obtained with Ca-Ka radiation: 4.4; 3.8; 2.88; 2.79; 2.66.
Claim 5
Dependent Claim
26 words
The aqueous suspension of claim 1 wherein said silicate compound has a calcium-binding power of from 100 mg to 200 mg CaO/gm of anhydrous active substance.
Claim 6
Dependent Claim
26 words
The aqueous suspension of claim 1 wherein said silicate compound is present in an amount of from 20% to 42% by weight on the anhydrous basis.
Claim 7
Dependent Claim
26 words
The aqueous suspension of claim 1 wherein said silicate compound is present in an amount of from 30% to 38% by weight on the anhydrous basis.
Claim 8
Dependent Claim
57 words
The aqueous suspension of claim 1 wherein said component B is an organic phosphonic acid having at lease one further acid group selected from the group consisting of lower alkane polyphosphonic acids, amino-lower alkane poly-phosphonic acids, hydroxy-lower alkane polyphosphonic acids, phosphono-lower alkane carboxylic acids, amino substituted phosphono-lower alkane carboxylic acids and hydroxy sub-stituted phosphono-lower alkane carboxylic acids.
Claim 9
Dependent Claim
26 words
The aqueous suspension of claim 1 wherein said component B is an alkyl acid phosphate emulsifier having from 3 to 20 carbon atoms in the alkyl.
Claim 10
Dependent Claim
29 words
The aqueous suspension of claim 1 wherein said component B is a nonionic surface-active compound having a turbidity point of a 1% solution in water of below room temperature.
Claim 11
Dependent Claim
37 words
The aqueous suspension of claim 9 wherein said nonionic surface-active compound is the ethoxylation product of 1 mol of an alkanol having from 16 to 18 carbon atoms with from 1 to 8 mols of ethylene oxide.
Claim 12
Dependent Claim
75 words
The aqueous suspension of claim 9 wherein said nonionic surface-active compound is selected from the group consisting of aliphatic carboxylic acid esters with alcohols having water-solubilizing groups, aliphatic carboxylic acid amides having water-solubilizing groups in the amide part, with 10 to 20 carbon atoms in the carboxylic acid moiety, the alkoxylation products of alkanols or alkenols containing 10 to 20 carbon atoms and the alkoxylation products of fatty amines containing 16 to 18 carbon atoms.
Claim 13
Dependent Claim
18 words
The aqueous suspension of claim l having a vis-cosity measured at 250°C of between 1,000 and 15,000 cps.
Claim 14
Dependent Claim
44 words
The aqueous suspensions of claim 1 having a further content up to 6% by weight of compounds further im-proving stabilization selected from the group consisting of saturated fatty acids having 10 to 20 carbon atoms and fatty amines having 10 to 20 carbon atoms.
Claim 15
Dependent Claim
18 words
The aqueous suspensions of claim 1 having a fur-ther content up to 0.5% by weight of anti-foaming agents.
Claim 16
Dependent Claim
40 words
The aqueous suspensions of claim l having a fur-ther content of inorganic salts or hydroxides from the pre-cipitation process for obtaining said aluminosilicates, selected from the group consisting of MOH, M2C03, MHC03 and M2SO4 where M has the above-assigned values.
Claim 17
Dependent Claim
65 words
In the process for the preparation of a powdery, trickleable washing and cleansing agent composition which comprises spray-drying an aqueous slurry of the individual constituents of a washing and cleansing agent composition including builders, and surface-active compounds and recover-ing said powdery, trickleable washing and cleansing agent composition, the improvement consisting of employing the aqueous suspension of claim 1 in the preparation of said aqueous slurry.
References Cited (Backward Citations)
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