Preparation method of functional polyacrylic acid alkyl ester latex and ASA resin

By controlling the crosslinking structure of functional polyalkyl acrylate latex, the problem of rubber particle disintegration during multiple processing of ASA resin was solved, achieving high impact performance and shape retention of ASA resin.

CN119569954BActive Publication Date: 2026-07-10WANHUA CHEM GRP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
WANHUA CHEM GRP CO LTD
Filing Date
2024-12-02
Publication Date
2026-07-10

AI Technical Summary

Technical Problem

Existing ASA resins are prone to rubber particle disintegration during multiple processing steps, leading to a decline in mechanical properties and making it difficult to maintain excellent impact resistance and shape stability.

Method used

A functional polyalkyl acrylate latex preparation method was adopted. By controlling the internal low cross-linking and the external high cross-linking structure design, ASA resin was prepared, which enhanced the shape retention ability of rubber particles under high shear environment and prevented disintegration.

Benefits of technology

This technology enables ASA resin to maintain excellent impact resistance and mechanical properties even after multiple processing steps, and significantly improves the shape stability of rubber particles.

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Abstract

The application provides a preparation method of functional polyalkyl acrylate latex and an ASA resin. By controlling the difference in the cross-linking degree of the double layers of the functional polyalkyl acrylate latex, the prepared rubber has excellent shape retention, and further, the ASA resin prepared from the functional polyalkyl acrylate latex prepared by the application has excellent impact resistance and excellent impact resistance retention after multiple processing.
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