Composite Absorbent Particles
a technology of absorbent particles and absorbent particles, which is applied in the field of composite absorbent particles, can solve the problems of severe malodor production, poor odor control qualities of clay, and inability to effectively control malodors, and achieves low density, low tracking, and strong clumping
Inactive Publication Date: 2008-08-07
THE CLOROX CO
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- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Benefits of technology
The composite particles achieve improved clumping strength, reduced odor production, and lower active ingredient requirements, encouraging cats to use the litter box more effectively and reducing production costs.
Problems solved by technology
However, the clump strength of clay litters described above is typically not strong enough to hold the clump shape upon scooping, and inevitably, pieces of the litter break off of the clump and remain in the litter box, allowing waste therein to create malodors.
Another problem inherent in typical litters is the inability to effectively control malodors.
Clay has very poor odor-controlling qualities, and inevitably waste build-up leads to severe malodor production.
However, the GAC is usually dry blended with the litter, making the litter undesirably dusty.
Activated carbon is very expensive, and the need for such high concentrations greatly increases production costs.
Method used
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Examples
Experimental program
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Effect test
example 1
[0103]Referring again to FIG. 1, a method for making particles 102 is generally performed using a pan agglomeration process in which clay particles of ≦200 mesh (≦74 microns), preferably ≦325 mesh (≦43 microns) particle size premixed with particles of active, are agglomerated in the presence of an aqueous solution to form particles in the size range of about 12×40 mesh (about 1650-250 microns). Alternatively, the particles are first formed with clay alone, then reintroduced into the pan or tumbler, and the active is added to the pan or tumbler, and a batch run is performed in the presence of water or a binder to adhere the active to the surface of the particles. Alternatively, the active can be sprayed onto the particles.
example 2
[0104]A method for making particles 104 is generally performed using the process described with relation to FIG. 2, except no core material is added.
example 3
[0105]A method for making particles 106 is generally performed using the process described with relation to FIG. 2, except that introduction of the absorbent granules and the active into the agglomerator are alternated to form layers of each.
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Abstract
Composite particles and methods for making the same. An absorbent material is formed into a particle. An optional performance-enhancing active is coupled to the absorbent material before, during, or after the particle-forming process, homogeneously and / or in layers. Additionally, the composite absorbent particle may include a core material. Preferred methods for creating the absorbent particles include a pan agglomeration process, a high shear agglomeration process, a low shear agglomeration process, a high pressure agglomeration process, a low pressure agglomeration process, a rotary drum agglomeration process, a mix muller process, a roll press compaction process, a pin mixer process, a batch tumble blending mixer process, an extrusion process, and a fluid bed process.
Description
RELATED APPLICATIONS[0001]This application is a continuation-in-part of U.S. patent application entitled “Composite Absorbent Particles” and having Ser. No. 10 / 618,401 filed Jul. 11, 2003, which is herein incorporated by reference. This application is also a continuation-in-part of U.S. patent application entitled “Absorbent Composition with Improved Odor Control” and having Ser. No. 10 / 773,585 filed Feb. 6, 2004 and which is also herein incorporated by reference.FIELD OF THE INVENTION[0002]The present invention relates to composite absorbent particles, and more particularly, this invention relates to a composite absorbent particle having improved clumping and odor-inhibiting properties.BACKGROUND OF THE INVENTION[0003]Clay has long been used as a liquid absorbent, and has found particular usefulness as an animal litter.[0004]Because of the growing number of domestic animals used as house pets, there is a need for litters so that animals may micturate, void or otherwise eliminate li...
Claims
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IPC IPC(8): A01K29/00A01K1/015
CPCA01K1/0152A01K1/0154A01K1/0155B01J20/3295B01J20/28016B01J20/28023B01J20/2803B01J20/28004B01J20/12B01J20/20B01J20/3204B01J20/324
Inventor FRITTER, CHARLESSHENOY, ANANTH N.
Owner THE CLOROX CO