CA1083004A
Expired / Lapsed
CA
⏱️ 0.0 years remaining
Detergent tablet
Assignee: Colgate Palmolive Co
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Filing: 1977-11-29
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Granted: 1980-08-05
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Expires: 1997-11-29
Abstract
Abstract DETERGENT TABLET Abstract of the Disclosure A process for producing detergent tablets from free flow- ing spray dried base builder beads comprising inorganic detergent builders, The builder beads comprise alkali metal phosphate, alkali metal silicate and water. The alkali metal phosphate, component includes a hydrated and an anhydrous portion. Relatively large amounts of liquid or liquifiable detergent ingredients such as surface active agents etc. can be applied to the base beads after spray drying, without destroying their free flowing properties. The base beads are suitable for compression into coherent tablets. The resulting tablets are of improved detergency, physical integrity and solubility.
Inventors
- 👤 David P. Joshi
Bibliographic Details
Application Number
—
Jurisdiction
CA
Data Source
google_patents
Last Synchronized
2026-11-08 15:50
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/02; C11D3/04; C11D3/06; C11D1/00; C11D1/66; C11D1/72; C11D17/00; C11D17/0047; C11D17/0065; C11D17/0073; C11D3/08
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
151 words
THE EMBODIMENTS OF THE INVENTION IN WHICH AN EXCLUSIVE PROPERTY OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS: 1. Method for producing cleaning tablets comprising hydrating a first quantity of anhydrous phosphate builder salt in the presence of a second quantity of alkali metal silicate to form a hydrated aqueous slurry; adding a third quantity of anhydrous phosphate builder salt to said hydrated slurry to form a crutcher mix; spray drying said crutcher mix to form a particulate material, the weight ratio of said first quantity to said second quantity being from about 1.5 to about 5, the weight ratio of said first quantity to said third quantity being from about 0.3 to about 0.7, combining said par- ticulate material with from about 2 to about 40 percent by weight of a liquid or liquifiable organic surface active agent to form detergent beads, and compressing said material to form coherent tablets.
Claim 2
Dependent Claim
23 words
The method of claim 1 further including the steps of heating said hydrated slurry to a temperature from about 170.degree. to about 200.degree.F.
Claim 3
Dependent Claim
15 words
The method of claim 1 further including the addition of water to said hydrated slurry.
Claim 4
Dependent Claim
44 words
The method of claim 1 wherein said hydrating step is performed at a temperature suitable for hydrating said first quantity of phosphate builder salt and said slurry is raised to a temperature that would inhibit hydration of said third quantity of phosphate builder salt.
Claim 5
Dependent Claim
20 words
The method of claim 1 wherein the weight ratio of said first quantity to said third quantity is about 0.5.
Claim 6
Dependent Claim
18 words
The method of claim 1 wherein said crutcher mix contains from about 40 to about 55 percent solids.
Claim 7
Dependent Claim
39 words
The method of claim 1 wherein said spray drying takes place in a countercurrent spray tower at a spray pressure from about 200 psig to about 1000 psig and an inlet air temperature from about 500.degree.F to about 700.degree.F.
Claim 8
Dependent Claim
41 words
The method of claim 1 including the addition of up to 10 percent by weight based on the crutcher solids, of builder salts chosen from the group consisting of carbonates, citrates and silicates having detergent build- ing properties or combinations thereof.
Claim 9
Dependent Claim
21 words
The method of claim 1 further including the step of mixing and particulate material and organic material with a disintegrating aide.
Claim 10
Dependent Claim
31 words
The method of claim 1 wherein said compressing step is performed in a tableting press with the application of from about 3/4 to about 1 ton per square inch of pressure.
Claim 11
Dependent Claim
66 words
A cleaning tablet comprising; a base bead and from about 12 to about 30 percent by weight of a nonionic polyethoxylated synthetic organic detergent; said base bead comprising from about 45 to about 85 percent by weight of a phosphate builder salt, from about 5 to about 15 percent by weight of alkali metal silicate; and from about 5 to about 15 percent by weight water.
Claim 12
Dependent Claim
38 words
The cleaning tablet of claim 11 wherein said phosphate builder salt comprises a hydrated portion and an anhydrous portion, and the weight ratio of said hydrated portion to said anhydrous portion is from about 0.3 to about 0.7.
Claim 13
Dependent Claim
47 words
The granular detergent of claim 11 wherein said nonionic synthetic detergent is chosen from the group consisting of ethoxylated aliphatic al- cohols having a carbon chain of from about 8 to about 22 carbon atoms and from about 5 to about 30 ethylene oxide units per mole.
Claim 14
Dependent Claim
14 words
The granular detergent of claim 11 wherein said phosphate builder salt includes sodium tripolyphosphate.
Claim 15
Dependent Claim
14 words
The granular detergent of claim 11 wherein said alkali metal silicate includes sodium silicate.
Claim 16
Dependent Claim
18 words
A granular detergent according to claim 11 having a specific gravity from about 0.5 to about 0.7. 21
Claim 17
Dependent Claim
16 words
A granular detergent according to claim 11 having a flowability of at least about 75. 22
References Cited (Backward Citations)
No citation records indexed.
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