Richard D Burrows, 777944 S 2200 W, West Jordan, UT 84088

5202150, Apr 13, 1993

Apr 27, 1992

7/874141

David K. Benson - Golden CO
Richard W. Burrows - Conifer CO

The United States of America as represented by the United States
Department of Energy - Washington DC

B05D 302

427595

A method for impregnating a porous, non-metallic construction material with a solid phase-change material is described. The phase-change material in finely divided form is spread onto the surface of the porous material, after which the porous material is exposed to microwave energy for a time sufficient to melt the phase-change material. The melted material is spontaneously absorbed into the pores of the porous material. A sealing chemical may also be included with the phase-change material (or applied subsequent to the phase-change material) to seal the surface of the porous material. Fire retardant chemicals may also be included with the phase-change materials. The treated construction materials are better able to absorb thermal energy and exhibit increased heat storage capacity.

4702853, Oct 27, 1987

Oct 6, 1986

6/915842

David K. Benson - Golden CO
Richard W. Burrows - Conifer CO

The United States of America as represented by the Department of Energy - Washington DC

C09K 506

252 70

A thermal energy storge composition is disclosed. The composition comprises a non-chloride hydrate having a phase change transition temperature in the range of 70. degree. -95. degree. F. and a latent heat of transformation of at least about 35 calories/gram.

4572864, Feb 25, 1986

Jan 4, 1985

6/688668

David K. Benson - Golden CO
Richard W. Burrows - Conifer CO
Yvonne D. Shinton - Northglenn CO

The United States of America as represented by the United States
Department of Energy - Washington DC

C09K 318
B32B 900

4283055

The present invention discloses composite material for thermal energy storage based upon polyhydric alcohols, such as pentaerythritol, trimethylol ethane (also known as pentaglycerine), neopentyl glycol and related compounds including trimethylol propane, monoaminopentaerythritol, diamino-pentaerythritol and tris(hydroxymethyl)acetic acid, separately or in combinations, which provide reversible heat storage through crystalline phase transformations. These phase change materials do not become liquid during use and are in contact with at least one material selected from the group consisting of metals, carbon siliceous, plastic, cellulosic, natural fiber, artificial fiber, concrete, gypsum, porous rock, and mixtures thereof. Particulate additions, such as aluminum or graphite powders, as well as metal and carbon fibers can also be incorporated therein. Particulate and/or fibrous additions can be introduced into molten phase change materials which can then be cast into various shapes.