Building products incorporating phase change materials and method of making same
First Claim
1. A building product having thermal energy storage properties comprising a cementitious hollow core building block having at least one hollow core and having within said hollow core a composite selected from the group consisting of a povyolefin matrix having a phase change material contained within the matrix thereof finely divided silica particles having particle sizes of about 0.005 microns to about 0.025 microns and having a phase change material contained within the matrix thereof;
- and a formed cementitious plug having a phase change material incorporated therein.
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Accused Products
Abstract
A building product having thermal energy storage properties in the form of a cementitious hollow core building block having a hollow core or cores and having within the hollow core(s) a composite containing a phase change material. The composite may be a cementitious plug sized to fit the hollow core(s) and having a phase change material imbibed into the pores and matrix thereof or having polyolefin pellets containing a phase change material or silica particles containing a phase change material incorporated at the wet mix stage of formation of the cementitious plug. The composite may also be a polyolefin plug sized to fit hollow core(s) and having a phase change material contained within the matrix thereof. Finally the composite may be polyolefin pellets containing a phase change material or silica particles containing a phase change material packed in a container sized to fit the hollow core(s).
70 Citations
22 Claims
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1. A building product having thermal energy storage properties comprising a cementitious hollow core building block having at least one hollow core and having within said hollow core a composite selected from the group consisting of a povyolefin matrix having a phase change material contained within the matrix thereof finely divided silica particles having particle sizes of about 0.005 microns to about 0.025 microns and having a phase change material contained within the matrix thereof;
- and a formed cementitious plug having a phase change material incorporated therein.
- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. A building product having thermal energy storage properties comprising a Cementitious hollow core building block having at least one hollow core and having within said hollow core a molded high density polyethylene/ethylene vinyl acetate plug having a matrix structure and having a phase change material contained within the matrix by melt mixing said phase change material and silica particles into high density polyethylene/ethylene vinyl acetate above the melting point of polyethylene/ethylene vinyl acetate prior to molding said plug.
Specification