Polyurethane Foam Abrasive Particles for Surface-Safe Cleaning

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Solution Overview

Problem

Current scouring compositions face a trade-off between effective cleaning performance and surface safety, often causing damage due to the use of hard abrasive particles, and are perceived as outdated by consumers.

Innovation Solution

A liquid cleaning composition featuring polyurethane foam particles formed from diisocyanate monomers and polyols, which provides effective cleaning at low abrasive levels, ensuring both good cleaning performance and surface safety.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If hard abrasive particles are used in scouring compositions, then cleaning performance is improved, but surface damage increases

Engineering Contradiction:
Improvecleaning performanceVSAvoidsurface damage
Core Design Contradiction:
ProductivityVSObject-affected harmful factors

Solution Approach 1:

The patent changes the material parameters of abrasive particles by using polyurethane foam particles instead of traditional hard particles like silica or carbonate. These foam particles have controlled hardness, porosity, and size distribution that provide effective cleaning while reducing surface damage. The foam structure allows the particles to deform slightly during cleaning, reducing impact damage to surfaces.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The patent employs composite material structure by combining polyurethane foam particles with liquid cleaning agents and suspending aids. The composite nature of the cleaning composition allows the foam particles to work synergistically with the liquid components, providing both mechanical abrasion and chemical cleaning effects while maintaining surface safety through the controlled properties of the foam material.

Inventive Principle:
Principle #40Composite materials

2Productivity

If high levels of abrasive particles are used to achieve good cleaning performance, then cleaning effectiveness is improved, but formulation cost and process complexity increase

Engineering Contradiction:
Improvecleaning effectivenessVSAvoidformulation complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent optimizes the concentration parameter of abrasive particles by demonstrating that polyurethane foam particles provide effective cleaning at lower concentrations compared to traditional hard particles. The controlled porosity and size distribution of the foam particles enhance their cleaning efficiency per unit mass, reducing the overall formulation complexity and cost while maintaining cleaning effectiveness.

Inventive Principle:
Principle #35Parameter changes

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 composition effectively cleans a variety of surfaces, including hard and soft tissues, while minimizing surface damage and maintaining a pleasant user experience, offering an improved aesthetic and safety profile compared to traditional scouring agents.

Implementation Method 1

liquid scouring composition comprising suitable particles for cleaning and/or cleansing

Methodology Applied
Scientific EffectAbrasion: Abrasion

Data Source

PatentUS8629095B2Liquid cleaning and/or cleansing composition comprising polyurethane foam abrasive particles
Publication Date: 2014.01.14 PROCTER & GAMBLE CO
  • US8629095B2 patent drawing
  • US8629095B2 patent drawing

AI summary

The present invention relates to a liquid, cleaning and/or cleansing composition comprising abrasive cleaning particles.