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发明公开
CN102264776A 使用原位制备的氟化离聚物的分散颗粒通过含水聚合制备氟化离聚物 失效 - 权利终止

使用原位制备的氟化离聚物的分散颗粒通过含水聚合制备氟化离聚物
摘要：
本发明公开了用于制备氟化离聚物微粒的含水分散体的方法，所述方法包括：在第一聚合步骤中，在含水聚合介质中和在引发剂的存在下，将至少一种具有离子基的氟化单体聚合，所述聚合提供了氟化离聚物的分散颗粒；在第二聚合步骤中，在所述含水聚合介质中和在所述氟化离聚物的分散颗粒和引发剂存在下，将至少一种具有离子基的氟化单体聚合以形成所述氟化离聚物微粒的含水分散体，并且在开始所述第二聚合步骤之前中止所述第一聚合步骤。
摘要（英）：

A process for making an aqueous dispersion of fluorinated ionomer particles by polymerizing in a first polymerization step at least one fluorinated monomer having an ionic group in an aqueous polymerization medium in the presence of initiator, the polymerizing providing dispersed particulate of fluorinated ionomer, polymerizing in a second polymerization step at least one fluorinated monomer having an ionic group in the aqueous polymerization medium in the presence of the dispersed particulate of fluorinated ionomer and initiator to form the aqueous dispersion of particles of fluorinated ionomer, and suspending the first polymerization step prior to beginning the second polymerization step.

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