Deodorizing material

• US 4,891,215 A
• Filed: 03/21/1988
• Issued: 01/02/1990
• Est. Priority Date: 12/19/1985
• Status: Expired due to Term

• Current Assignee: Kitakamiseishi Kabushiki Kaisha
• Original Assignee: Kitakamiseishi Kabushiki Kaisha
• Inventors: Kato, Taro
• Primary Examiner(s): Robinson, Douglas W.
• Application Number:
  US07/171,384
• Time in Patent Office: 652 Days
• Field of Search: 424/76.1, 424/76.5, 424/76.7, 424/76.9, 424/147
• US Class Current: 424/76.5
• CPC Class Codes: A01K 1/0152 Litter
• CPC Class Codes: A01K 1/0155 comprising organic material
• CPC Class Codes: A61L 15/18 containing inorganic materials
• CPC Class Codes: A61L 9/01 Deodorant compositions compositions released by contact with a liquid A61L9/05
• CPC Class Codes: A61L 9/04 using substances evaporated in the air without heating

Abstract

A deodorizing material used for deodorization with respect to human and animal excreta by mixing at least one iron(II) or iron(III) compound selected from the group comprising ferrous sulfate, ferric sulfate, ferrous chloride, ferric chloride, ferrous nitrate, and ferric nitrate, in a cellulosic material and a cellulosic formed material.

Claims

1. A method for manufacturing deodorizing materials comprising cellulosic substances containing iron salts, comprising the steps of:

(a) spraying an aqueous ferrous sulfate solution on a cellulosic substance; and

(b) drying the sprayed cellulosic substances at a temperature of approximately 105°

C. for a period of time sufficient to form an oxidizing Fe+++/cellulosic substance complex.

2. A method in accordance with claim 1 wherein said sprayed cellulosic substances are dried until such time as a moisture content of between 15 and 20% is achieved.

3. A method of manufacturing a deodorizing material comprising the steps of:

(a) impregnating a material containing cellulose fibers with a solution of ferrous salts taken from the group consisting of sulfates, chlorides and nitrates; and

(b) drying the impregnated cellulose fibers at a temperature of approximately 105°

C. until the moisture content of the impregnated cellulose fibers is between 15 and 20% to evaporate the solution and form an oxidizing Fe+++/cellulose fibers complex.

4. The method of claim 3 wherein said ferrous salts are in an aqueous solution.

5. The method of claim 3 wherein said ferrous salts are sulfates.

6. The method of claim 3 wherein the cellulosic fibers include at least one of wood fibers and cotton fibers.

7. The method of claim 3 wherein the cellulosic fibers are in the form of at least one of a sheet material and particulate material.

8. A deodorizing material comprising an Fe+++/cellulose complex prepared by:

(a) preparing a solution of iron salts selected from the group consisting of ferrous sulfates, ferrous chlorides, and ferrous nitrates;

(b) impregnating a cellulosic or cellulosic formed material with said solution; and

(c) drying said material for a period of time and at a temperature of approximately 105°

C. to form an oxidizing Fe+++/cellulose complex.

9. A deodorizing material according to claim 8 in which said cellulosic material includes at least one of wood pulp fibers, natural cotton fibers, or regenerated fibers.

10. A deodorizing material according to claim 8 in which said cellulosic formed material is in the form of at least one of a sheet, paper, powder, block, cotton, or cloth.

11. A deodorizing material in accordance with claim 8 in which said solution is an aqueous ferrous sulfate solution.

12. A deodorizing material according to claim 8 in which said material is dried to have a moisture content of 15 to 20%.