Abrasive Articles With Plasticizer Bond

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Solution Overview

Problem

The industry demands improved bonded abrasive articles for machining applications, particularly for grinding and shaping glass materials, as existing technologies lack optimal performance and efficiency.

Innovation Solution

The development of abrasive articles comprising an organic bond material with abrasive particles and a plasticizer, where the abrasive particles include materials like silicon carbide and alumina, and the plasticizer is selected from compounds such as methyl benzoate and methyl anthranilate, enhancing the abrasive's performance and crosslinking density.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional organic bond materials are used in abrasive articles, then the articles can be manufactured with standard processes, but the crosslinking density is insufficient and toxicity is higher

Engineering Contradiction:
Improvecrosslinking densityVSAvoidtoxicity
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent changes the chemical parameters of the organic bond material by incorporating specific plasticizers (such as phthalates, adipates, or sebacates) in controlled amounts (0.1-10 wt%). This parameter change modifies the molecular structure and crosslinking behavior of the bond material, achieving higher crosslinking density while reducing toxicity through selective plasticizer choice and concentration control.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The patent creates a composite organic bond material system combining abrasive particles (silicon carbide, alumina, or diamond), organic bond material (resin or rubber), and plasticizers. This composite approach allows the plasticizer to enhance crosslinking density and modify toxicity characteristics while maintaining the structural integrity and abrasive functionality of the overall material system.

Inventive Principle:
Principle #40Composite materials

2Reliability

If the organic bond material composition is modified to improve performance, then crosslinking density increases, but the manufacturing process complexity increases

Engineering Contradiction:
Improveperformance characteristicsVSAvoidmanufacturing process complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent incorporates plasticizers into the organic bond material composition during the initial mixing and forming stages, before the curing process. This preliminary action ensures uniform distribution of the plasticizer throughout the bond material matrix, simplifying the manufacturing process by eliminating the need for subsequent plasticizer addition or complex multi-step processing while achieving the desired crosslinking density and performance characteristics.

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 abrasive articles exhibit improved performance characteristics, including increased crosslinking density and reduced toxicity, leading to enhanced machining efficiency and durability compared to conventional abrasive articles.

Implementation Method 1

a plasticizer within an organic bond material... enhanced the abrasive's performance and crosslinking density

Methodology Applied
Scientific EffectCrosslinking: Chemical Bonding

Data Source

PatentEP3481589B1Abrasive articles
Publication Date: 2023.08.30 SAINT GOBAIN ABRASIVES INC
  • EP3481589B1 patent drawingFigure 1

AI summary

An abrasive article may include an organic bond material, abrasive particles contained within the organic bond material and a plasticizer contained within the organic bond material. The plasticizer may include at least one of an aromatic phenyl group, a heteroaromatic furyl group, or a saturated aliphatic hydrocarbon. The plasticizer may further include a polar group.