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    • 2. 发明授权
    • Method for the manufacture of pressure sensitive adhesives
    • 制造压敏粘合剂的方法
    • US08039528B2
    • 2011-10-18
    • US11576931
    • 2005-10-13
    • Dong-Wei ZhuCheryl L. MooreJames T. Wolter
    • Dong-Wei ZhuCheryl L. MooreJames T. Wolter
    • C08F2/00C09B67/00
    • C08F6/006C08L2205/02C08L2666/04C09J133/04
    • A method for the manufacture of an adhesive id described, comprising: (A) Providing an initial reaction product of a solution polymerization reaction, the initial reaction product comprising polymer, unreacted polymerizable reactant, non-polymerizable material, and solvent; and (B) Purifying the initial reaction product by adding an oxidizing agent and a reducing agent to the initial reaction product and allowing the unreacted polymerizable reactant in the initial reaction product to further react, thereby providing a second reaction product comprising additional polymer and a lower level of unreacted polymerizable reactant than was present in the initial reaction product. Optionally, the method of the invention may further comprise: Precipitating the polymer from the second reaction product to provide a precipitated polymer, and separating the precipitated polymer from the remainder of the second reaction product, the precipitated polymer comprising a lower level of non-polymerizable material or unreacted polymerizable reactant or both non-polymerizable material and unreacted polymerizable reactant than was present in the second reaction product.
    • 一种制造所述粘合剂的方法,包括:(A)提供溶液聚合反应的初始反应产物,包含聚合物的初始反应产物,未反应的可聚合反应物,不可聚合材料和溶剂; 和(B)通过向初始反应产物中加入氧化剂和还原剂并使初始反应产物中的未反应的可聚合反应物进一步反应来纯化初始反应产物,由此提供第二反应产物,其包含另外的聚合物和较低的 未反应的可聚合反应物的水平比初始反应产物中存在的水平高。 任选地,本发明的方法还可以包括:从第二反应产物中沉淀聚合物以提供沉淀的聚合物,并将沉淀的聚合物与第二反应产物的其余部分分离,沉淀的聚合物包含较低水平的不可聚合 材料或未反应的可聚合反应物或两种不可聚合材料和未反应的可聚合反应物。