申请人:Sumitomo Chemical Company, Ltd.
公开号:EP3235836A1
公开(公告)日:2017-10-25
Provided is a polymer that is capable of affording a heat storage material superior in humidity permeability and shape retention after phase transition and that is superior in molding processability, namely, a polymer including constitutional units (A) derived from ethylene, constitutional units (B) represented by a specified formula, and optionally including constitutional units (C) represented by a specified formula, wherein where the total number of the units (A), the units (B), and the units (C) is 100%, the number of the units (A) accounts for 70% to 99%, the total number of the units (B) and the units (C) accounts for 1% by weight to 30% by weight, and where the total number of the units (B) and the units (C) is 100%, the number of the units (B) accounts for 1% to 100% and the number of the units (C) accounts for 0% to 99%.
本发明提供了一种聚合物,该聚合物能够提供一种在相变后湿度渗透性和形状保持性方面更优越且在成型加工性方面更优越的蓄热材料,即一种包括由乙烯衍生的组成单元(A)、由指定式表示的组成单元(B)以及可选地包括由指定式表示的组成单元(C)的聚合物、其中,当单元(A)、单元(B)和单元(C)的总数量为 100%时,单元(A)的数量占 70%至 99%,单元(B)和单元(C)的总数量占 1%至 30%(按重量计),而当单元(B)和单元(C)的总数量为 100%时,单元(B)的数量占 1%至 100%,单元(C)的数量占 0%至 99%。