US4288340A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Granulated composition comprising a polymer phosphate and an alkali metal aluminum silicate, process of making and method of using same
Assignee: Joh A Benckiser GmbH
•
Filing: 1978-10-02
•
Granted: 1981-09-08
•
Expires: 1998-10-02
Abstract
Abstract A non-caking and freely flowing granulated composition of high abrasion-resistance which comprises a polymer phosphate and an ion-exchanging alkali metal aluminum silicate is disclosed. At least part of the polymer phosphate in said composition is a highly condensed phosphate, preferably of a phosphorous pentoxide-content between about 64% and about 69%. Said polymer phosphate may contain sodium tripolyphosphate in an amount between about 95% and 0% by weight and preferably between 80% and 60% by weight. Such a composition may also contain a water-soluble tenside which is liquid at room temperature. The process of producing such a granulated composition comprising a highly condensed phosphate and an alkali metal aluminum silicate, comprises granulation of the mixture of polymer phosphate and alkali metal aluminum silicate by spraying water or a tenside solution thereon. The resulting granulated composition is useful as additive to washing, rinsing, and cleaning-agents, as water-softening agents, as textile-washing agents, and the like.
Inventors
- 👤 Juergen Dankworth
- 👤 Helmut Hartenstein
- 👤 Ludwig Hertling
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:17
CPC Classifications
C; C11; C11D; C11D11/00; C02; C02F; C02F5/00; C02F5/08; C02F5/086; C11D3/00; C11D3/02; C11D3/04; C11D3/06; C11D3/12; C11D3/124; C11D3/1246; C11D3/128
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
100 words
A process of producing an agglomerated composition comprising granulating a pulverulent mixture comprising an ion-exchanging alkali metal aluminum silicate and a polymer phosphate comprising from 5 to 100 weight percent highly condensed polymer phosphates of the formula: Me.sup.I (n+2).sup.P n.sup.O (3n+1) wherein Me represents an alkali metal and n is an integer from 4 to about 50 and from 95 to 0 weight percent alkali tripolyphosphate, by spraying said mixture with water in a spray mixer or a rotary tubular mixer, the weight ratio of polymer phosphate to alkali metal aluminum silicate in said mixture being from 1:20 to 20:1.
Claim 2
Dependent Claim
100 words
A process of producing an agglomerated composition comprising granulating a pulverulent mixture comprising an ion-exchanging alkali metal aluminum silicate and a polymer phosphate comprising from 5 to 100 weight percent highly condensed polymer phosphates of the formula: Me.sup.I (n+2).sup.P n.sup.O (3n+1) wherein Me represents an alkali metal and n is an integer from 4 to about 50 and from 95 to 0 weight percent alkali tripolyphosphate, by spraying said mixture with water in a spray mixer or a rotary tubular mixer, the weight ratio of polymer phosphate to alkali metal aluminum silicate in said mixture being from 1:20 to 20:1.
Claim 3
Dependent Claim
48 words
The process of claim 1, wherein said pulverulent mixture further comprises an effective amount of at least one of the following additives: anionic surfactants, active oxygen-containing compounds, optical brighteners, alkali metal metasilicates, alkali metal disilicates, sodium carbonates, active chlorine-containing organic compounds, foam-inhibiting agents, corrosion-inhibiting agents and mixtures thereof.
Claim 4
Dependent Claim
25 words
The process of claim 2, wherein the weight ratio of polymer phosphate to alkali metal aluminum silicate in said mixture is from 1:2 to 2:1.
Claim 5
Dependent Claim
31 words
The process according to claim 1, wherein said polymer phosphate comprises from 20 to 100 weight percent of said highly condensed phosphate and from 80 to 0 weight percent alkali tripolyphosphate.
Claim 6
Dependent Claim
50 words
The process of claim 1, wherein the water sprayed upon the pulverulent mixture contains a water-soluble surfactant in an amount corresponding to from 1 to 2 weight percent of the combined alkali metal aluminum silicate and polymer phosphate content of the mixture, said surfactant being a liquid at room temperature.
Claim 7
Dependent Claim
18 words
A process according to claim 1, wherein said spray mixer or said rotary tubular mixer is horizontally positioned.
Claim 8
Dependent Claim
13 words
The process of claim 1, wherein the granulating device is a spray mixer.
Claim 9
Dependent Claim
20 words
The process of claim 1, wherein the polymer phosphate comprises a mixture of the highly condensed phosphate and alkali tripolyphosphate.
Claim 10
Dependent Claim
22 words
The process of claim 1, wherein at least part of the polymer phosphate is a phosphate which has been pretreated with water-vapor.
Claim 11
Dependent Claim
18 words
The process of claim 8, wherein at least part of the alkali tripolyphosphate is a partially hydrated tripolyphosphate.
Claim 12
Dependent Claim
25 words
The process of claim 8, wherein at least part of the alkali tripolyphosphate is a tripolyphosphate having a phase I content of at least 10%.
Claim 13
Dependent Claim
13 words
The process of claim 8, wherein the alkali tripolyphosphate is a spray-dried tripolyphosphate.
Claim 14
Dependent Claim
17 words
The process of claim 8, wherein the polymer phosphate is a mixture of various forms of phosphates.
References Cited (Backward Citations)
US2568110A
Cited
DE2543976A1
Cited
GB1503356A
Cited
US4113644A
Cited
US4096081A
Cited
DE2736903A1
Cited
US4171277A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-09-07 | 1985-03-09 | 1985-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-09-07 | 1989-03-09 | 1989-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-09-07 | 1993-03-09 | 1993-09-08 | $7700.00 | Window Closed / Lapsed |