Process for incorporation of a phase change material into gypsum

Details Process for incorporation of a phase change material into gypsum Process for incorporation of a phase change material into gypsum

1989-09-25

1991-01-29

Lusignan, Michael

Coating processes

With post-treatment of coating or coating material

Heating or drying

118324, 427424, 428703, B05D 102, B05D 302

Patent

active

049885430

ABSTRACT:
A method and an apparatus for impregnating one side of a porous board, such as gypsum boards, with a precise amount of compatible phase change material. A predetermined amount of the phase change material is applied at a predetermined uniform rate to the one surface of the board so that a predetermined amount of the phase change is impregnated. The rate of application is lower than the absorption rate of phase change material. Also, the temperature of the board must be above the melting point of the phase change material during the impregnation. The process and apparatus may be either a continuous, a semi-continuous or a batch operation, and the resulting product is intended as a building construction material.

REFERENCES:
patent: 4259401 (1981-03-01), Chahroudi et al.
patent: 4797160 (1989-01-01), Salyer

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