Latent acrylic adhesive

EP4750853A1Pending Publication Date: 2026-06-03HUNTSMAN ADVANCED MATERIALS AMERICAS LLC
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Patent Information

Authority / Receiving Office
EP · EP
Patent Type
Applications
Current Assignee / Owner
HUNTSMAN ADVANCED MATERIALS AMERICAS LLC
Filing Date
2024-07-17
Publication Date
2026-06-03

AI Technical Summary

Technical Problem

Current acrylic adhesive compositions lack sufficient storage stability, emit odor, are too viscous, or cure too slowly at room temperature, making them unsuitable for industrial production cycles, especially in aerospace and automotive applications.

Method used

A one-component adhesive composition comprising a free radically polymerizable component, an impact modifier, an adhesion promoter, a toughener, a cure accelerant, an encapsulated free radical forming compound, and optionally a thixotropic modifier, which provides excellent latency, corrosion resistance, and strong adhesion while reducing odor and maintaining stability until activated by an external stimulus.

Benefits of technology

The adhesive composition exhibits improved storage stability, reduced odor, and fast reactivity at room temperature, maintaining high adhesive strength across a wide temperature range and resistance to various environmental exposures.

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Abstract

The present disclosure generally relates to a one-component adhesive composition including a free radically polymerizable component, an impact modifier, an adhesion promoter, a toughener, a cure accelerant, an encapsulated free radical forming compound and optionally a thixotropic modifier and its use in bonding substrates to one another.
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