US4184975A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pourable agglomerated aluminosilicate builder compositions for washing and cleansing agents
Assignee: Henkel AG and Co KGaA
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Filing: 1977-12-14
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Granted: 1980-01-22
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Expires: 1997-12-14
Abstract
Abstract A pourable agglomerated aluminosilicate builder composition comprising (A) from 20% to 70% by weight of at least one finely-divided, synthetically-produced, water-insoluble aluminosilicate compound containing at least some combined water and having a calcium binding power of at least 50 mg CaO/gm of anhydrous active substance and the formula on the anhydrous basis (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 from 0.7 to 1.5, Me is aluminum or boron, and y is a number from 0.8 to 6, and (B) from 30% to 80% by weight of at least two water-soluble alkali metal salts containing water of crystallization selected from the group consisting of tripolyphosphates, pyrophosphates, orthophosphates, sulfates, carbonates, metasilicates and borates; as well as the process of production of the same.
Inventors
- 👤 Peter Krings
- 👤 Josef Huppertz
- 👤 Herbert Reuter
- 👤 Dieter Kuhling
- 👤 Milan J. Schwuger
- 👤 Heinz Smolka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:43
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/02; C11D3/12; C11D3/124; C11D3/1246; C11D3/128
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
229 words
A process for the production of a pourable agglomerated aluminosilicate builder composition which consists essentially of intimately mixing from 50 to 75 parts by weight of at least one moist, finely-divided synthetically-produced, water-insoluble aluminosilicate compound having a water content of from 30% to 60% by weight, a calcium binding power of from 100 to 200 mg CaO/gm of anhydrous active substance when measured at 22° C. by the Calcium Binding Power Test Method set out in the specification, a particle size of from 0.1 to 30μ, and the formula on the anhydrous basis (M.sub.2 O).sub.x.Me.sub.2 O.sub.3.(SiO.sub.2).sub.y where M is a cation selected from the group consisting of sodium and potassium, x is a number from 0.7 to 1.1, Me is a member selected from the group consisting of aluminum and boron, and y is a number from 1.3 to 3.3, with from 25 to 50 parts by weight of at least two substantially-anhydrous, finely-powdered alkali metal salts capable of binding water as water of crystallization or hydration selected from the group consisting of tripolyphosphates, pyrophosphates, sulfates, carbonates, and metasilicates, at least one of said salts being alkali metal tripolyphosphate, wherein each of said at least two water-soluble alkali metal salts is present in an amount, on the anhydrous basis, of 10% by weight of the weight of said water-soluble alkali metal salts, and recovering said agglomerated aluminosilicate builder composition.
Claim 2
Dependent Claim
229 words
A process for the production of a pourable agglomerated aluminosilicate builder composition which consists essentially of intimately mixing from 50 to 75 parts by weight of at least one moist, finely-divided synthetically-produced, water-insoluble aluminosilicate compound having a water content of from 30% to 60% by weight, a calcium binding power of from 100 to 200 mg CaO/gm of anhydrous active substance when measured at 22° C. by the Calcium Binding Power Test Method set out in the specification, a particle size of from 0.1 to 30μ, and the formula on the anhydrous basis (M.sub.2 O).sub.x.Me.sub.2 O.sub.3.(SiO.sub.2).sub.y where M is a cation selected from the group consisting of sodium and potassium, x is a number from 0.7 to 1.1, Me is a member selected from the group consisting of aluminum and boron, and y is a number from 1.3 to 3.3, with from 25 to 50 parts by weight of at least two substantially-anhydrous, finely-powdered alkali metal salts capable of binding water as water of crystallization or hydration selected from the group consisting of tripolyphosphates, pyrophosphates, sulfates, carbonates, and metasilicates, at least one of said salts being alkali metal tripolyphosphate, wherein each of said at least two water-soluble alkali metal salts is present in an amount, on the anhydrous basis, of 10% by weight of the weight of said water-soluble alkali metal salts, and recovering said agglomerated aluminosilicate builder composition.
Claim 3
Dependent Claim
20 words
The process of claim 1 wherein said water content of said moist aluminosilicate is from 35% to 50% by weight.
Claim 4
Dependent Claim
26 words
The process of claim 1 wherein said alkali metal salts are calcined sodium salts with a bulk density of from 300 to 1000 gm per liter.
Claim 5
Dependent Claim
26 words
The process of claim 1 wherein a dry stream of air is brought into contact with the ingredients during and subsequent to said intimate mixing step.
Claim 6
Dependent Claim
36 words
The process of claim 1 wherein said moist aluminosilicate compound has an average particle size of less than 30μ and at least 80% of said particles have an average particle size of from 10 to 0.01μ.
Claim 7
Dependent Claim
20 words
The process of claim 5 wherein 80% of said particles have an average particle size of from 8 to 0.1μ.
Claim 8
Dependent Claim
15 words
The process of claim 1 wherein said aluminosilicate compound has the formula 0.7-1.1Na.sub.2 O.Al.sub.2 O.sub.3.1.3-3.3SiO.sub.2.
Claim 9
Dependent Claim
12 words
The agglomerated aluminosilicate builder composition produced by the process of claim 1.
Claim 10
Dependent Claim
19 words
The agglomerated aluminosilicate builder composition of claim 8 wherein M is sodium and the alkali metal salt is sodium.
Claim 11
Dependent Claim
12 words
The agglomerated aluminosilicate builder composition produced by the process of claim 7.
Claim 12
Dependent Claim
35 words
The process of claim 6 wherein each of said alkali metal salts in said mixture is present in an amount, on the anhydrous basis, of at least 20% by weight of the mixture of salts.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-01-21 | 1983-07-23 | 1984-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-01-21 | 1987-07-23 | 1988-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-01-21 | 1991-07-23 | 1992-01-22 | $7700.00 | Window Closed / Lapsed |