Heat storage composition and process for preparing the same

Details Heat storage composition and process for preparing the same Heat storage composition and process for preparing the same

C - Chemistry, Metallurgy

09

K

C09K 5/06 (2006.01) C08K 3/30 (2006.01)

Patent

CA 2060438

ABSTRACT The present invention is directed to a heat storage composition containing (1) at least one compound selected from the group consisting of sodium sulfate and its eutectic salts, (2) water and (3) a crosslinkable polymer which comprises a polyfunctional monomer and at least one monomer selected from the group consisting of unsaturated carboxylic acids, organic unsaturated sulfonic acids and salts thereof, wherein the molar ratio of water to sodium sulfate or its eutectic salt is from 13:1 to 27:1. The composition of the present invention has a large latent heat and maintains this large latent heat after a number of heating cycles. It is suitable for use in building air conditioning systems.

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