Thermally conductive silicone composition

A thermally conductive composition with a unique blend of silicon carbide, alumina, and zinc oxide fillers addresses the challenge of high thermal conductivity and applicability in electronic devices, ensuring efficient heat dissipation and easy application.

TW202631898APending Publication Date: 2026-08-01DOW SILICONES CORP
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Patent Information

Application Number
TW114136746
Authority / Receiving Office
TW · TW
Patent Type
Applications
Current Assignee / Owner
Priority Date
2024-10-10
Filing Date
2025-09-24
Publication Date
2026-08-01

AI Technical Summary

Technical Problem

Existing thermally conductive polysiloxane compositions face challenges in achieving both high thermal conductivity and easy applicability, with high filler loading increasing viscosity and compromising electrical insulation properties, and mismatched filler ratios limiting thermal conductivity.

Method used

A thermally conductive composition comprising a novel combination of at least three different types and sizes of thermally conductive fillers, including silicon carbide, alumina, and zinc oxide, with specific weight percentages and particle sizes, to achieve an extrusion rate of 20 g/min and thermal conductivity of at least 10.0 W/m*K.

Benefits of technology

The composition ensures effective heat dissipation and easy application, meeting the demands of high thermal conductivity and extrusion rate requirements for advanced electronic devices.

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Abstract

A thermally conductive composition comprises: (A) an organopolysiloxane represented by an average formula (I) and a dynamic viscosity of
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