Pet litter having an activated carbon layer and methods of making the litter
US11234410B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 16, 2018 |
| Grant date | Feb 1, 2022 |
| Priority date | — |
| Expiry date | Jul 28, 2040 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J20/3293
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method of making absorbent granules can include mixing activated carbon with a liquid and a binder to form a slurry; applying the slurry to particles of absorbent core material to at least partially coat the particles of the core material with a first distinct layer containing the activated carbon; and applying a clumping agent to the first distinct layer to at least partially coat the first distinct layer with a second distinct layer containing the clumping agent. The absorbent granules can be used as a deodorizer and/or a pet litter, and each of the absorbent granules can include an absorbent core, a first distinct layer containing activated carbon, and a second distinct layer containing a clumping agent such that the first distinct layer is between an outer surface of the absorbent core and an inner surface of the second distinct layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.