Process for homogenizing polyolefin drag reducing agents
    50.
    发明授权
    Process for homogenizing polyolefin drag reducing agents 有权
    均质聚烯烃减阻剂的方法

    公开(公告)号:US06894088B2

    公开(公告)日:2005-05-17

    申请号:US10395416

    申请日:2003-03-24

    CPC分类号: C08J3/12 C08J2323/02

    摘要: A process for producing polymer drag reducing agent (DRA) slurries without cryogenic temperatures or conventional grinding is described. The homogenizing or size reduction of polymer, such as poly(alpha-olefins), may be achieved by the use of granulated polymer and at least one liquid, non-solvent for the polymer DRA. In one non-limiting embodiment of the invention, the homogenizing is conducted at ambient temperature. Examples of suitable non-solvents include water and non-aqueous non-solvents including, but not necessarily limited to, alcohols, glycols, glycol ethers, ketones, and esters; having from 2-6 carbon atoms, and combinations thereof. The polymeric DRA may be homogenized to an average particle size of about 600 microns or less.

    摘要翻译: 描述了没有低温或常规研磨制备聚合物减阻剂(DRA)浆料的方法。 可以通过使用颗粒状聚合物和至少一种用于聚合物DRA的液体非溶剂来实现聚合物(例如聚(α-烯烃))的均化或尺寸减小。 在本发明的一个非限制性实施方案中,均化在环境温度下进行。 合适的非溶剂的实例包括水和非水性非溶剂,包括但不一定限于醇,二醇,二醇醚,酮和酯; 具有2-6个碳原子,及其组合。 聚合物DRA可以均化至约600微米或更小的平均粒度。