(meth)acrylate-functional dispersant

By designing polymers with (meth)acrylate functional groups and hydrophobic/hydrophilic side groups attached to the polymer chain, the stability and compatibility issues of pigment dispersion in paints, inks, and coatings were solved, achieving uniform dispersion and long-term stability of pigments over a wide temperature range and avoiding interference with other olefinic unsaturated substances.

CN115867585BActive Publication Date: 2026-06-16ARKEMA FRANCE SA
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
ARKEMA FRANCE SA
Filing Date
2021-07-23
Publication Date
2026-06-16

AI Technical Summary

⚠Technical Problem

Dispersants in existing paints, inks, and coatings are difficult to maintain uniform dispersion and long-term stability of pigment particles over a wide temperature range. In particular, they lack compatibility with different types of pigments and organic and aqueous media, and may interfere with the curing of other olefinic unsaturated substances.

⚗Method used

Polymers with (meth)acrylate functional groups and hydrophobic/hydrophilic side groups attached to the polymer chain are provided for the preparation of dispersants through alternating or repeating structural designs, ensuring uniform dispersion of pigments in inks and coatings, and compatibility with various pigment types and media, while avoiding interference with the curing of other olefinic unsaturated substances.

🎯Benefits of technology

It achieves uniform dispersion and long-term stability of pigment particles over a wide temperature range, improves the compatibility of dispersants with various pigments and media, avoids interference with other olefinic unsaturated substances, and meets the stability requirements of paints, inks and coatings.

✦ Generated by Eureka AI based on patent content.

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Abstract

The (meth)acrylate functional copolymers can be used as dispersants for solid particles in paints, inks, and coatings. The copolymers have (meth)acrylate functional groups positioned as pendant to the polymer chain. Also positioned as pendant to the polymer backbone are non-(meth)acrylate functional hydrophobic and / or hydrophilic side groups. The copolymers can be used as dispersants in dispersions of particulate solids in organic and aqueous media, such as for use in paints and printing inks.
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