Halogen free flame-retardant silicone compositions, latent heat storage material and flame-retardant pottant
Patent Information
- Authority / Receiving Office
- EP · EP
- Patent Type
- Applications
- Current Assignee / Owner
- DOW SILICONES CORP
- Filing Date
- 2023-08-08
- Publication Date
- 2026-06-17
AI Technical Summary
There is a need for a halogen-free flame-retardant silicone composition with improved flame-retardant properties and latent heat storage properties, particularly for use in electronic devices where traditional halogenated flame retardants are undesirable due to environmental and health concerns.
A halogen-free flame-retardant silicone composition is developed, comprising an alkenyl-containing siloxane, a Si-H containing siloxane intermediate, phase-changing encapsulated particles, inorganic thermal conductive fillers, flame-retardant additive fillers, and a hydrosilylation reaction catalyst. This composition can be cured to form a latent heat storage material or flame-retardant pottant with specific performance requirements.
The composition achieves a viscosity of less than 4000cp with latent heat equal to or less than 60J/g, or greater than 4000cp with latent heat increasing to 100J/g, while meeting requirements such as UL94 V0, thermal conductivity greater than 0.2W/mK, and dielectric strength close to 10KV/mm, thus providing effective flame retardancy and latent heat storage.
Smart Images
Figure CN2023111718_13022025_PF_FP_ABST