Thin Organic Solvent Resistant Glove Layered Composite Design

Solution Overview

Problem

Existing gloves lack comprehensive chemical resistance, particularly against organic solvents, and are often thick, inflexible, and expensive, making them inadequate for laboratory work.

Innovation Solution

Development of thin, layered polymeric gloves with a combination of polyisobutylene and nitrile-butadiene layers, providing chemical resistance to organic solvents and maintaining flexibility and comfort.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If glove thickness is increased to provide chemical resistance, then chemical resistance is improved, but flexibility and dexterity deteriorate

Engineering Contradiction:

Improvechemical resistanceVSAvoidflexibility and dexterity

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

The glove is divided into multiple functional layers: an inner layer (natural rubber latex or synthetic polyisoprene) providing comfort and skin contact, and an outer layer (nitrile-butadiene rubber) providing chemical resistance. This segmentation allows each layer to optimize for its specific function, achieving chemical protection without sacrificing flexibility.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The glove uses composite material construction combining different polymers: the inner layer uses elastomeric materials (natural rubber latex or synthetic polyisoprene) for flexibility and comfort, while the outer layer uses nitrile-butadiene rubber for chemical resistance. This composite structure achieves both chemical protection and flexibility that single-material gloves cannot provide.

Inventive Principle:

Principle #40Composite materials

2Reliability

If glove thickness is increased to provide chemical resistance, then chemical resistance is improved, but glove cost increases

Engineering Contradiction:

Improvechemical resistanceVSAvoidcost

Core Design Contradiction:

ReliabilityVSEase of manufacture

Solution Approach 1:

The glove is divided into multiple functional layers: an inner layer (natural rubber latex or synthetic polyisoprene) providing comfort and skin contact, and an outer layer (nitrile-butadiene rubber) providing chemical resistance. This segmentation allows each layer to optimize for its specific function, achieving chemical protection without sacrificing flexibility.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The glove uses composite material construction combining different polymers: the inner layer uses elastomeric materials (natural rubber latex or synthetic polyisoprene) for flexibility and comfort, while the outer layer uses nitrile-butadiene rubber for chemical resistance. This composite structure achieves both chemical protection and flexibility that single-material gloves cannot provide.

Inventive Principle:

Principle #40Composite materials

3Reliability

If glove thickness is increased to provide chemical resistance, then chemical resistance is improved, but comfort and extended wearability deteriorate

Engineering Contradiction:

Improvechemical resistanceVSAvoidcomfort and extended wearability

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

The glove is divided into multiple functional layers: an inner layer (natural rubber latex or synthetic polyisoprene) providing comfort and skin contact, and an outer layer (nitrile-butadiene rubber) providing chemical resistance. This segmentation allows each layer to optimize for its specific function, achieving chemical protection without sacrificing flexibility.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The glove uses composite material construction combining different polymers: the inner layer uses elastomeric materials (natural rubber latex or synthetic polyisoprene) for flexibility and comfort, while the outer layer uses nitrile-butadiene rubber for chemical resistance. This composite structure achieves both chemical protection and flexibility that single-material gloves cannot provide.

Inventive Principle:

Principle #40Composite materials

Data Source

PatentUS12310440B2Thin organic solvent resistant glove

Publication Date: 2025.05.27 ANSELL LTD

AI summary

A thin organic solvent resistant glove is disclosed including: a first polymeric layer in a shape of a glove including at least one of a blend of a polyisobutylene material and a nitrile-butadiene material, or a nitrile-butadiene material; a second polymeric layer in a shape of a glove including at least one of a polyisobutylene material or a blend of a polyisobutylene material and a nitrile-butadiene material, disposed on the first polymeric layer, and a third polymeric layer in a shape of a glove including a nitrile-butadiene material or an acrylic polymer material disposed on the second polymeric layer.