Thermoplastic adhesive composition and method for producing such thermoplastic adhesive composition

JP2026101606APending Publication Date: 2026-06-22THE SWATCH GRP RES & DEVELONMENT LTD

Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
THE SWATCH GRP RES & DEVELONMENT LTD
Filing Date
2025-10-21
Publication Date
2026-06-22

AI Technical Summary

Technical Problem

Existing adhesives lack high adhesive strength, on-demand release properties, and efficient recycling capabilities, with supramolecular polymers being too weak and epoxy-based adhesives being difficult to adjust and recycle.

Method used

A thermoplastic adhesive composition comprising linear oligomers and polymers formed by co-oligomerization or copolymerization of monomers with specific ratios of glycidyl and amine groups, allowing for high adhesive strength and on-demand release through heat or solvent interaction.

Benefits of technology

The adhesive composition provides strong, adjustable bonding with easy removal and recycling, suitable for applications requiring flexibility and durability, such as in the watch industry.

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Abstract

The present invention provides an adhesive composition that offers high adhesive strength and on-demand release (DoD) properties, as well as a method for producing the same. [Solution] A thermoplastic adhesive composition is provided, comprising a linear oligomer and / or linear polymer obtained by co-oligomerization and / or copolymerization of a mixture comprising at least one monomer containing two terminal glycidyl groups and at least one monomer containing two secondary amine groups or one primary amine group, wherein the ratio of the number of terminal glycidyl groups to the number of amine groups in the mixture is 1:1.1 to 1:2.75.
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