申请人:Nippon Shokubai Co., Ltd.
公开号:US11332616B2
公开(公告)日:2022-05-17
There is provided an ethyleneimine polymer (solution) capable of expressing excellent properties when used in such usages as, for example, coagulants for wastewater, papermaking chemicals such as freeness improvers and the like, enzyme immobilization agents, and adhesion improvers (for example, adhesion promoters for extrusion laminate (anchor coating agent)).
To solve the above object, there is provided an ethyleneimine polymer solution including an ethyleneimine polymer and water, wherein a weight average molecular weight (Mw) of the ethyleneimine polymer is 200,000 or more, the weight average molecular weight (Mw) being measured based on pullulan by gel permeation chromatography (GPC), and a ratio of a component having a weight average molecular weight (Mw) of 30,000 or more is 60 mass % or more with respect to 100 mass % of a total amount of the ethyleneimine polymer.
本发明提供了一种乙烯亚胺聚合物(溶液),当用于例如废水混凝剂、造纸化学品(例如白度改进剂等)、酶固定剂和附着力改进剂(例如挤压层压板的附着力促进剂(锚涂层剂))等用途时,能够表现出优异的性能。
为了解决上述问题,提供了一种乙烯亚胺聚合物溶液,包括乙烯亚胺聚合物和水,其中乙烯亚胺聚合物的重量平均分子量(Mw)为 200,000 或更大,重量平均分子量(Mw)是根据凝胶渗透色谱法(GPC)中的拉鲁兰测定的,重量平均分子量(Mw)为 30,000 或更大的组分占乙烯亚胺聚合物总量的比例为 60 质量%或更大(相对于 100 质量%)。