Thermally Conductive Curable Composition

Patent No. EP3924412 (titled "Thermally Conductive Curable Composition") was filed by Sika Technology on Feb 12, 2020. The application was issued on Dec 10, 2025.

Patent Summary

This moisture-curable composition is used to adhesively bond, coat, or seal substrates, where at least one substrate is a battery or electronic device. The composition comprises 0.6 to 15.0 wt.% of at least one organic polymer (P) containing reactive silane groups, 70 to 95 wt.% of at least one filler (F), and at least one dispersion additive (D). It may optionally include a curing catalyst and up to 10 wt.% of a plasticizer (PL). Filler F is selected from aluminium oxide, aluminium hydroxide, boron nitride, aluminium nitride, zinc oxide, silver, copper, aluminium, chalk, aluminosilicate, graphite, or mixtures thereof, provided chalk does not exceed 25 wt.% of the total filler content. The composition is designed for high thermal conductivity without interfering with e-coat processes.

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Patent Oppositions (2)

Patent oppositions filed by competitors challenge the validity of a granted patent. These oppositions are typically based on claims of prior art, lack of novelty, or non-obviousness. They are a key part of the process for determining a patent's strength and enforceability.

CompanyOpposition DateRepresentative
BOSTIKSep 10, 2026ARKEMA PATENT
HENKELSep 10, 2026ALARCON

Dossier Documents

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  • Date

    Description

EP3924412

SIKA TECHNOLOGY
Application Number
EP20704027A
Filing Date
Feb 12, 2020
Status
Granted And Under Opposition
Nov 7, 2025
Publication Date
Dec 10, 2025