IP Verse

Aqueous Solution Containing Combination Of Complexing Agents

Patent No. EP3224338 (titled "Aqueous Solution Containing Combination Of Complexing Agents") was filed by Basf on Nov 20, 2015. The application was issued on Apr 17, 2019.

Patent Summary

An aqueous formulation comprises a combined content of 40% to 60% of complexing agents (A) and (B), with a weight ratio of (A) to (B) between 10:1 and 1:10. Agent (A) is alkali metal-partially neutralized methylglycine diacetic acid (MGDA), and agent (B) is alkali metal-partially neutralized glutamic acid diacetic acid (GLDA). Optional components include (C) polyamines with N atoms partially or fully substituted with $\text{CH}_2\text{COOH}$ groups and partially or fully neutralized with alkali metal cations, and (D) at least one alkali metal salt of a mono- or dicarboxylic acid. The formulation provides high concentration and stability between 0°C and 50°C, optimizing viscosity and preventing precipitation during transport in pipes or containers.

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CompanyOpposition DateRepresentative
NOURYON CHEMICALSJan 17, 2020KUTZENBERGER WOLFF & PARTNER

Dossier Documents

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  • Date

    Description

EP3224338

BASF
Application Number
EP15798402A
Filing Date
Nov 20, 2015
Status
Revoked
Jul 31, 2024
Publication Date
Apr 17, 2019
External Links
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