申请人:Sumitomo Chemical Company, Limited
公开号:US10370467B2
公开(公告)日:2019-08-06
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 is provided. The polymer includes constitutional units (A) derived from ethylene, constitutional units (B) represented by a specified formula, and optionally includes constitutional units (C) represented by another specified formula. 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. 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透湿性和形状保持性方面更优越,并且在成型加工性方面更优越的蓄热材料。该聚合物包括由乙烯衍生的构型单元(A)、由指定式表示的构型单元(B)以及由另一指定式表示的构型单元(C)。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%(按重量计)至 30%(按重量计)。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%。