Polymers having N-vinyl amide and hydroxyl moieties, their compositions and the uses thereof
申请人:Musa Osama M.
公开号:US10400052B2
公开(公告)日:2019-09-03
The invention relates to polymers derived at least from one: (A) one N-vinyl amide unit, and (B) one hydroxyl-containing acrylate unit, and to polymers derived at least from: (A) N-vinyl-2-caprolactam, and (B) one non-acrylate unit having: (i) at least one hydroxyl group, and/or (ii) at least one functional group convertible to a hydroxyl group wherein at least one group is converted to hydroxyl functionality in the final polymer product. Such polymers may exhibit degradability, e.g., in seawater or soil environments. In preferred embodiments, these polymers and compositions thereof are used in oilfield applications, such as an inhibitor of gas hydrates and/or a kinetic inhibitor of gas hydrates. The polymer can assume alternating, block, and/or random configurations of the repeating units, with at least one ester group. The chemical structure subscripts m, and n may be any integer equal to or greater than 1.
本发明涉及至少衍生自以下一种的聚合物:(A) 一个 N-乙烯基酰胺单元和 (B) 一个含羟基的丙烯酸酯单元,以及至少衍生自以下一种的聚合物:(A) N-乙烯基-2-己内酰胺,和 (B) 一个非丙烯酸酯单元,该单元具有:(i) 至少一个羟基,和/或 (ii) 至少一个可转化为羟基的官能团,其中至少一个官能团在最终聚合物产品中转化为羟基官能团。此类聚合物可在海水或土壤等环境中降解。在优选的实施方案中,这些聚合物及其组合物可用于油田应用,如气体水合物抑制剂和/或气体水合物动力学抑制剂。聚合物的重复单元可以是交替、嵌段和/或无规构型,至少带有一个酯基。化学结构下标 m 和 n 可以是等于或大于 1 的整数。