NUCLEATING AGENTS, METHODS FOR THEIR PRODUCTION, AND ASSOCIATED POLYMER COMPOSITIONS

A method of manufacture of zinc monoglycerolate containing an incorporated modifier, and the product, the zinc monoglycerolate being in the form of agglomerates of crystallites, wherein the crystallite size based on the average coherence domain length is not more than 30nm in the direction, and not more than 60nm in the direction, as determined by the Scherrer equation via powder X-raydiffraction; and the aspect ratio computed by / coherent domain lengths is less than 0.65, preferably less than 0.56, in particular less than 0.44. Polymers containing this nucleating agent and methods for their production are also described. The zinc monoglycerolate is useful as a nucleating agent, and is very effective at low loading levels in polymers such as polypropylene. 本发明涉及一种制备含有并入的改性剂的单甘油酸锌的方法，和产物，其中该单甘油酸锌呈微晶附聚物形式，其中基于平均相干域长度的微晶尺寸由通过Scherrer等式经由粉末X射线衍射测定在 方向上不超过30nm，且在 方向上不超过60nm；且由 / 相干域长度计算的纵横比小于0.65，优选小于0.56，特别是小于0.44。还描述了含有该成核剂的聚合物及其制备方法。该单甘油酸锌可用作成核剂，且在低负载水平下在聚合物如聚丙烯中非常有效。