US4675127A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for preparing particulate detergent compositions
Assignee: Henkel AG and Co KGaA
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Filing: 1985-09-26
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Granted: 1987-06-23
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Expires: 2005-09-26
Abstract
Abstract Particulate detergent compositions are prepared by (a) forming an aqueous crutcher slurry having a total solids content of from about 40 to about 80 weight percent on a total weight basis and comprising a surfactant ingredient, al least about 0.1 weight percent (surfactant weight basis) of which is a glycoside surfactant; a builder ingredient; water; and, optionally, a filler ingredient and (b) thereafter drying said aqueous crutcher slurry. In an especially preferred embodiment, the glycoside surfactant is employed as an additive in a relatively small but effective amount (i.e., corresponding to less than about 2 weight percent on a dry solids weight basis) to provide reduced viscosity and/or enhanced homogeneity to the crutcher slurry compositions of interest.
Inventors
- 👤 Hunter L. Kickle
- 👤 Allen D. Urfer
- 👤 Arno Cahn
- 👤 Nelson F. Borys
- 👤 Gilles M. L. Verboom
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 00:03
CPC Classifications
C; C11; C11D; C11D1/00; C11D1/66; C11D1/662; C11D11/00; C11D11/0082
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
149 words
A process for the preparation of a particulate detergent composition which comprises the steps of: A. forming an aqueous crutcher slurry comprising, per 100 parts of total crutcher slurry weight: 1. from about 40 to about 80 parts by weight of solid ingredients, said solid ingredients comprising: a. from about 2 to about 60 parts by weight of a surfactant ingredient at least about 0.1 weight percent of which is a glycoside surfactant, said glycoside surfactant constituting less than about 2 weight percent of said solid ingredients on a total dry solids weight basis; b. from about 5 to about 70 parts by weight of a builder ingredient; and c. from 0 to about 40 parts by weight of a water soluble filler ingredient; and 2. from about 20 to about 60 parts by weight of water; and B. drying said crutcher slurry to form said particulate detergent composition.
Claim 2
Dependent Claim
149 words
A process for the preparation of a particulate detergent composition which comprises the steps of: A. forming an aqueous crutcher slurry comprising, per 100 parts of total crutcher slurry weight: 1. from about 40 to about 80 parts by weight of solid ingredients, said solid ingredients comprising: a. from about 2 to about 60 parts by weight of a surfactant ingredient at least about 0.1 weight percent of which is a glycoside surfactant, said glycoside surfactant constituting less than about 2 weight percent of said solid ingredients on a total dry solids weight basis; b. from about 5 to about 70 parts by weight of a builder ingredient; and c. from 0 to about 40 parts by weight of a water soluble filler ingredient; and 2. from about 20 to about 60 parts by weight of water; and B. drying said crutcher slurry to form said particulate detergent composition.
Claim 3
Dependent Claim
29 words
The process of claim 1 wherein the glycoside surfactant is employed in an amount ranging from about 1 to about 50 weight percent on a surfactant ingredient weight basis.
Claim 4
Dependent Claim
27 words
The process of claim 2 wherein the surfactant ingredient comprises, on a total surfactant ingredient weight basis, at least about 50 weight percent of an anionic surfactant.
Claim 5
Dependent Claim
38 words
The process of claim 3 wherein the glycoside surfactant is employed in an amount sufficient to measurably reduce the crutcher slurry viscosity relative to that viscosity which it would have had in the absence of said glycoside surfactant.
Claim 6
Dependent Claim
28 words
The process of claim 4 wherein the total solids content of said crutcher slurry is from about 50 to about 80 weight percent on a total weight basis.
Claim 7
Dependent Claim
29 words
The process of claim 2 wherein the surfactant ingredient comprises, on a total surfactant ingredient weight basis, at least about 50 weight percent of an alkoxylated alcohol nonionic surfactant.
Claim 8
Dependent Claim
38 words
The process of claim 6 wherein the glycoside surfactant is employed in an amount sufficient to substantially improve the homogeneity of the crutcher slurry relative to what it would have been in the absence of said glycoside surfactant.
Claim 9
Dependent Claim
28 words
The process of claim 7 wherein the total solids content of said crutcher slurry is from about 50 to about 80 weight percent on a total weight basis.
Claim 10
Dependent Claim
42 words
The process of claim 7 wherein the alkoxylated alcohol nonionic surfactant is an ethoxylated C 8 -C 22 straight or branched chain alcohol comprising an average of from about 2 to about 20 ethylene oxide groups per molecule of said nonionic surfactant.
Claim 11
Dependent Claim
37 words
The process of claim 9 wherein the alkoxylated alcohol non-ionic surfactant is an ethoxylated C 12-18 fatty alcohol comprising an average of from about 5 to about 15 ethylene oxide groups per molecule of said nonionic surfactant.
Claim 12
Dependent Claim
97 words
The process of claim 1 wherein the glycoside surfactant corresponds to the formula: RO--R.sup.1 O--.sub.y (Z).sub.x A wherein R is a monovalent organic radical containing from about 6 to about 30 carbon atoms; R 1 is a divalent hydrocarbon radical containing from about 2 to about 4 carbon atoms; O is an oxygen atom; y is a number having an average value of from 0 to 12; Z is a moiety derived from a reducing saccharide containing 5 or 6 carbon atoms; and x is a number having an average value of from 1 to about 10.
Claim 13
Dependent Claim
54 words
The process of claim 11 wherein, in the glycoside surfactant of the Formula A, R is a monovalent organic radical containing from about 8 to about 18 carbon atoms; y is zero; Z is glucose or a moiety derived therefrom; X is a number having an average value of from 11/2 to about 4.
Claim 14
Dependent Claim
40 words
The process of claim 12 wherein the predominant surfactant ingredient is an anionic surfactant and wherein the glycoside surfactant is employed in an amount ranging from about 2 to about 25 weight percent on a total surfactant ingredient weight basis.
Claim 15
Dependent Claim
15 words
The process of claim 13 wherein the anionic surfactant is a linear alkyl benzene sulfonate.
Claim 16
Dependent Claim
76 words
The process of claim 1 wherein the crutcher slurry comprises: a. from about 4 to about 25 parts by weight of the surfactant ingredient, about 1 to about 50 weight percent of which is the glycoside surfactant; b. from about 12 to about 28 parts by weight of the builder ingredient; from 0 to about 32 parts by weight of said filler ingredient; and d. from about 25 to about 50 parts by weight of water.
Claim 17
Dependent Claim
12 words
The process of claim 15 wherein the filler ingredient is sodium sulfate.
Claim 18
Dependent Claim
14 words
The process of claim 1 wherein the drying step is accomplished by spray drying.
Claim 19
Dependent Claim
17 words
The process of claim 17 wherein the particulate detergent composition produced is powdery or granular in character.
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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) | 1990-06-22 | 1990-12-22 | 1991-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-06-22 | 1994-12-22 | 1995-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-06-22 | 1998-12-22 | 1999-06-23 | $7700.00 | Window Closed / Lapsed |