| abstract |
The present invention has an excellent heat storage property, and even when the capsule is kneaded and stirred, the capsule wall is not easily crushed, and the capsule wall is not easily plasticized by the latent heat storage material contained in the capsule. A heat storage microcapsule capable of preventing aggregation between capsules is provided. A heat storage microcapsule according to the present invention is a microcapsule in which (C) a latent heat storage material is included in an amount of 40 to 70% by weight, and the capsule wall of the capsule has (A) an alkyl group having 18 carbon atoms. It is formed from a polymer having the above crystalline (meth) acrylic acid ester monomer as a main component, the crystallization temperature of the capsule wall is 40 ° C. or higher, and the average particle size is 0.01 μm to 20 μm. And [Selection figure] None |