Animal litter, process for preparing animal litter and method of removal of animal waste

• US 9,232,767 B2
• Filed: 02/20/2013
• Issued: 01/12/2016
• Est. Priority Date: 02/20/2012
• Status: Active Grant

• Current Assignee: Kent Pet Group, Inc. (The Kent Corp.)
• Original Assignee: Kent Pet Group, Inc. (The Kent Corp.)
• Inventors: Wang, Lin, Wiesner, Thomas A.
• Primary Examiner(s): NGUYEN, TRINH T
• Application Number:
  US13/772,029
• Publication Number:
  US 20130213312A1
• Time in Patent Office: 1,056 Days
• Field of Search: 119/171, 119/172, 119/173, 424/76.6
• US Class Current: 1/1
• CPC Class Codes: A01K 1/011 with means for removing excrement A01K1/0114 and A01K1/0117 take precedence
• CPC Class Codes: A01K 1/0154 comprising inorganic material
• CPC Class Codes: A01K 1/0155 comprising organic material

Abstract

An animal litter, process for preparing the animal litter and a method for removal of animal waste using the animal litter are provided. The animal litter generally includes corn cob, a lubricant, and a cohesiveness agent. The animal litter is in the form of discrete plural particles which tend to agglomerate when wetted.

Claims

1. An animal litter comprising:

a sorbent comprising at least about 35 weight % ground corn cob;

a lubricant; and

a cohesiveness agent,

the animal litter being in the form of discrete plural particles which tend to agglomerate when wetted, the cohesiveness agent being present in an amount effective to enhance the intraparticle cohesion of the particles,

wherein the ground corn cob contributes to the agglomeration of the litter and is in the form of a finely ground corn cob configured to pass through a 1/16 inch screen, and

wherein no more than about 5% of the ground corn cob is larger than U.S. standard #30 mesh screen size, at least 50% of the ground corn cob is smaller than U.S. standard #40 mesh screen size, and at least 20% of the ground corn cob is smaller than U.S. standard #80 mesh screen size.

2. The animal litter of claim 1 wherein the lubricant is selected from the group consisting of corn germ, virgin corn germ, fats, oils and mixtures thereof.

3. The animal litter of claim 1 wherein the cohesiveness agent is corn starch.

4. The animal litter of claim 1 further comprising a mold inhibitor selected from the group consisting of citric acid, potassium sorbate and mixtures thereof.

5. The animal litter of claim 1 further comprising at least about 10 weight % pine sawdust.

11. The animal litter of claim 1, further including at least 2% of a puffed odor-absorbing carbon based material.

6. A process for preparing an animal litter, the method comprising:

providing a mixture of a sorbent comprising at least about 35 weight % ground corn cob, a lubricant and a cohesiveness agent; and

compacting the mixture of into discrete plural compacted particles which tend to agglomerate when wetted,

wherein the ground corn cob contributes to the agglomeration of the litter and is in the form of a finely ground corn cob configured to pass through a 1/16 inch screen, and

wherein no more than about 5% of the ground corn cob is larger than U.S. standard #30 mesh screen size, at least 50% of the ground corn cob is smaller than U.S. standard #40 mesh screen size, and at least 20% of the ground corn cob is smaller than U.S. standard #80 mesh screen size.

7. The process of claim 6 wherein the lubricant is selected from the group consisting of corn germ, virgin corn germ, fats, oils and mixtures thereof.

8. The process of claim 6 wherein the cohesiveness agent is corn starch.

9. The process of claim 6 wherein the mixture further comprises a mold inhibitor selected from the group consisting of citric acid, potassium sorbate and mixtures thereof.

10. The process of claim 6 wherein the mixture further comprises at least about 10 weight % pine sawdust.

12. A process according to claim 6, said mixture further including at least 2% of a puffed odor-absorbing carbon based material.