Biodegradable Cat Litter Granules Using Cassava Bran and Sodium Bicarbonate

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Solution Overview

Problem

Current solutions for managing cat urine and waste do not effectively address odor retention and clogging issues in sewage systems, and existing products may not be biodegradable or safe for disposal.

Innovation Solution

Biodegradable hygienic granules composed of 99% cassava bran and 1% sodium bicarbonate, produced through an extrusion process, offering high liquid absorption and odor mitigation properties, ensuring safe disposal without clogging.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Quantity of substance

If conventional cat litter products are used, then liquid absorption is achieved, but odor retention and sewage clogging issues occur

Engineering Contradiction:

Improveliquid absorptionVSAvoidodor retention and sewage clogging

Core Design Contradiction:

Quantity of substanceVSObject-generated harmful factors

Solution Approach 1:

The patent changes the chemical composition parameters by using cassava bran (97-99%) combined with specific additives (sodium bicarbonate 0.1-1%, bentonite 0.1-3%, and/or zeolite 0.1-3%), transforming conventional cat litter into a biodegradable product that absorbs liquid while preventing odor and clogging through natural decomposition

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The patent creates a composite material combining cassava bran with functional additives (sodium bicarbonate for odor control, bentonite/zeolite for enhanced absorption), achieving multiple functions: liquid absorption, odor mitigation, and biodegradability that prevents sewage system harm

Inventive Principle:

Principle #40Composite materials

2Quantity of substance

If non-biodegradable materials are used for high absorption, then liquid retention is improved, but environmental safety and disposal issues worsen

Engineering Contradiction:

Improveliquid retentionVSAvoidenvironmental safety and disposal

Core Design Contradiction:

Quantity of substanceVSReliability

Solution Approach 1:

The patent changes the material parameter from synthetic non-biodegradable substances to natural cassava bran with controlled composition (97-99%), maintaining high liquid retention capability while ensuring environmental safety through complete biodegradability and non-toxicity

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The patent employs a disposable, biodegradable cat litter product made from cassava bran that performs its absorption function effectively then decomposes naturally, eliminating long-term environmental persistence issues associated with conventional synthetic litters

Inventive Principle:

Principle #27Cheap short-living objects (Disposable)

3Reliability

If biodegradable materials are used, then environmental safety is improved, but liquid absorption capacity may be reduced

Engineering Contradiction:

Improveenvironmental safetyVSAvoidliquid absorption capacity

Core Design Contradiction:

ReliabilityVSQuantity of substance

Solution Approach 1:

The patent compensates for the potentially lower absorption of pure cassava bran by incorporating small amounts of high-performance absorbent additives (bentonite 0.1-3% and/or zeolite 0.1-3%), creating a composite that maintains biodegradability while enhancing liquid absorption capacity to levels comparable with or exceeding conventional litters

Inventive Principle:

Principle #40Composite materials

4Reliability

If natural materials like cassava bran are used, then biodegradability and non-toxicity are improved, but manufacturing precision and consistency may be challenged

Engineering Contradiction:

Improvebiodegradability and non-toxicityVSAvoidgranulometry consistency

Core Design Contradiction:

ReliabilityVSManufacturing precision

Solution Approach 1:

The patent controls manufacturing parameters including granulometry (0.6-2.0 mm particle size), moisture content (10% ±1%), and composition ratios (cassava bran 97-99%, additives 0.1-3%) to ensure consistent product performance while maintaining natural biodegradable materials

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The patent performs preliminary processing of cassava bran through drying and toasting before extrusion, and uses extrusion technology to pre-form the granules with controlled size and density, ensuring manufacturing consistency and product uniformity before final packaging

Inventive Principle:

Principle #10Preliminary action

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 provide excellent liquid absorption, form a firm clump, and are non-toxic, allowing safe flushing and preventing sewage clogging, while effectively managing cat urine odor and waste disposal.

Implementation Method 1

The granules provide excellent liquid absorption, form a firm clump

Methodology Applied

Scientific EffectAbsorption: Absorption (physical)

Implementation Method 2

The biodegradable hygienic granules... have high liquid absorption properties

Methodology Applied

Scientific EffectCapillary action: Capillary Action

Implementation Method 3

The product is natural and has excellent absorption properties, which help in the disposal of the waste... sodium bicarbonate... in order to retain the odor produced by urine

Methodology Applied

Scientific EffectChemical neutralization: Chemical Bonding

Data Source

PatentUS11622530B2Biodegradable hygienic granules for cats and the production process thereof

Publication Date: 2023.04.11 YUCAN CORP

AI summary

There is disclosed biodegradable hygienic granules, with high liquid absorption properties for use in the retention of urine and domestic cat waste. The present disclosure also relates to the manufacture process of the granules.