A resin dispersion having, dispersed in water with a 50% particle diamter of at most 0.5 μm, a polymer (C) having a hydrophilic polymer (B) or an acidic group bonded to a propylene/α-olefin copolymer (A) as a copolymer of propylene with an α-olefin other than propylene, where the copolymer (A) has a propylene content of at least 50 mol% and less than 100 mol% and the copolymer (A) has a weight average molecular weight Mw of at least 10,000 and a molecular weight distribution Mw/Mn of at most 3.5, and the resin dispersion has a surfactant content of at most 15 parts by weight per 100 parts by weight of the polymer (C).
一种
树脂分散体,它在
水中分散有 50%颗粒直径不超过 0.5 μm,具有亲
水性聚合物 (B) 或酸性基团的聚合物 (C),该聚合物与
丙烯/α-烯烃共聚物 (A) 结合为
丙烯与除
丙烯外的α-烯烃的共聚物,其中共聚物 (A) 的
丙烯含量至少为 50 摩尔%,低于 100 摩尔%,共聚物 (A) 的重量平均分子量 Mw 至少为 10,000 ,分子量分布 Mw/Mn 至多为 3.5,而
树脂分散体的表面活性剂含量为每 100 份聚合物(C)最多 15 份(重量)。