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.
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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