Aqueous semi-synthetic metalworking fluid composition containing aminopropanediol

A semi-synthetic metalworking fluid using aminopropanediols addresses microbial degradation in MWFs, enhancing performance and safety by inhibiting microbial growth and maintaining pH, thus extending shelf life and reducing corrosion.

JP7869326B2Active Publication Date: 2026-06-02DOW GLOBAL TECHNOLOGIES LLC
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Patent Information

Application Number
JP2024552711
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Filing Date
2022-03-31
Publication Date
2026-06-02
Estimated Expiration
2042-03-31

AI Technical Summary

Technical Problem

Existing metalworking fluids (MWFs) suffer from microbial growth that degrades their performance over time, leading to issues such as souring, viscosity changes, and corrosion, and current biocides pose health and regulatory concerns.

Method used

A semi-synthetic metalworking fluid composition incorporating aminopropanediols as microbial growth control agents, combined with base oils, organic acids, emulsifiers, and other additives, to maintain pH and inhibit microbial growth effectively.

Benefits of technology

The composition provides improved cooling, lubricity, concentration stability, and extended shelf life while avoiding environmental and health hazards associated with traditional biocides.

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Abstract

The present invention describes an aqueous metalworking fluid comprising a base oil, an organic acid, optionally an emulsifier, an additive concentrate, water, and a microbial growth control agent comprising an aminopropanediol.
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Citation Information

Patent Citations

  • Coating material composition capable of forming lubricating membrane excellent in press workability and weldability, and lubricating surface treated steel sheet using the same composition

    JP2001019902A

  • Corrosion inhibiting composition

    JP2017510707A

  • Metalworking fluids

    JP2022024064A

  • Water-soluble metalworking oil composition

    WO2021182605A1