Encapsulates
OwnerHanwei Zhang, Chilwin Tanamal +4inventors
InventorsHanwei Zhang, Chilwin Tanamal, John Charles DeBraal, Travis Ian Bardsley, Biao Duan, Nianxi Yan
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Abstract
The invention discloses a microencapsulated phase change material having a specific Thermal Efficiency Index (TEI). TEI=α(RΔT)*β(RΔH)*γ(RMP)*δ(RTGA@180)*∈(RFW) The problem of achieving effective and efficient microencapsulated phase change material can be solved to yield a commercially useful material having the described combination of physical and chemical characteristics based on the parameters described in the specification. Microcapsules according to the invention are highly effective at delivering enhanced thermal performance as compared to conventional microcapsules.
Claims15
A microencapsulated phase change material comprising a particle comprising a core material and a wall material selected from the group consisting of polyacrylate, polymethacrylate, polyamine, polyurea, polyurethane, melamine formaldehyde, and mixtures thereof, that surrounds the core material, the particle having a Thermal Efficiency Index of at least 10,000;
- wherein said particle's core material comprises from 50 to 97 wt % of a methyl ester derived from palm oil, from 0.1 to 20 wt % of a straight chain alkane and from 0.1 to 25 wt % of a wax.
Dependencies are inferred from the claim text.