Patent ID: 9587153
Date: 2017-03-07
CPC Classifications: C09K

Claim:
1. A heat storage material composition comprising: a styrene-ethylene-ethylene-propylene-styrene copolymer; not less than 300 parts by mass and not more than 1000 parts by mass of a paraffin-based wax having a melting point of 30 to 170° C. with respect to 100 parts by mass of the styrene-ethylene-ethylene-propylene-styrene copolymer; and not less than 100 parts by mass and not more than 250 parts by mass of a paraffin-based process oil having a molecular weight of 400 to 800 with respect to 100 parts by mass of the styrene-ethylene-ethylene-propylene-styrene copolymer, wherein the paraffin-based process oil softens the styrene-ethylene-ethylene-propylene-styrene copolymer.