Non-dispersible Granular Substrate Using Molasses-Lime Binder
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Solution Overview
Problem
Existing animal litter granules soften when exposed to moisture, making them difficult to remove from litter boxes due to their dispersibility in water and lack of solid structure.
Innovation Solution
A granular substrate composed of a mixture of inert mineral components, a binder formed from the reaction between cane molasses and hydrated lime, and optionally a lightweight additive, which remains solid when moistened and non-dispersible in water, achieved through co-pelletization and controlled moisture content.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If animal litter granules are made from conventional materials, then they can be easily formed and processed, but they soften when exposed to moisture and become difficult to remove
Solution Approach 1:
The patent uses a composite binder system combining hydrated lime and cane molasses with inert mineral components to create granules that maintain solid structure when moistened. The composite material approach allows the granules to achieve both ease of manufacture through co-pelletization and reliability in maintaining solid structure when exposed to moisture, resolving the technical contradiction between these two features.
2Reliability
If granules are made dispersible in water, then they can be easily processed and handled, but they cannot form firm clumps when moistened
Solution Approach 1:
The patent converts the typically harmful effect of water dispersibility into a beneficial property by using the binder reaction between hydrated lime and cane molasses to create controlled water interaction. The granules are non-dispersible in water, which allows them to form firm, solid clumps when moistened that can be easily removed as a unit from the litter box, resolving the contradiction between clump formation and ease of removal.
3Reliability
If granules use a simple binder system, then manufacturing is easier, but the granules soften when exposed to moisture
Solution Approach 1:
The patent changes the chemical parameters of the binder system by using the reaction between hydrated lime and cane molasses to form a binder that provides resistance to softening when exposed to moisture. This parameter change in the binder composition achieves the desired reliability while maintaining relatively simple manufacturing through co-pelletization, resolving the technical contradiction between resistance to softening and binder composition complexity.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The granules maintain solid structure and non-dispersibility in water, ensuring effective litter performance with high resistance to attrition and long-term storage stability, allowing for easy removal and handling.
Implementation Method 1
a binder (formed of a reaction between cane molasses and hydrated lime)
Implementation Method 2
drying the granules to a moisture content of 4% to 10% (preferably 6% to 8%), and storing the granules at a temperature of 50° F. to 140° F. (in a manner which retains the 4% to 10%, preferably 6% to 8%, moisture content)
Data Source
AI summary
A non-dispersible granular substrate remains solid when exposed to moisture is formed of a plurality of granules, each granule being a mixture including an inert mineral component, a binder formed of a reaction between cane molasses and hydrated lime, and optionally a light weight additive. A method of making a non-granular substrate includes forming a batch mixture including an inert mineral component, hydrated lime, cane molasses, water and optionally a light weight additive, and co-pelletizing the batch mixture to form a plurality of granules. The granular substrate can be used, for example, as animal bedding (e.g. cat litter).