发明名称 |
EMPLOYING POLYALKYLENE OXIDES FOR NUCLEATION IN AQUEOUS POLYMERIZATION OF FLUOROMONOMER |
摘要 |
Process for polymerizing fluoromonomer to form an aqueous dispersion of fluoropolymer particles including: (a) providing an aqueous medium in a polymerization reactor, (b) adding nucleating additive comprising polyalkylene oxide having a number average molecular weight of about 50 to about 2000 to the aqueous medium in an amount of about 0.1 ppm to about 50 ppm based on water in the aqueous medium, (c) exposing the nucleating additive to oxidizing agent to form a dispersion of oleophilic nucleation sites in the aqueous medium; (d) pressurizing the reactor by adding fluoromonomer, and (e) adding polymerization initiator to the aqueous medium to cause the polymerizing of the fluoromonomer to form fluoropolymer particles dispersed in the aqueous medium. |
申请公布号 |
WO2015081055(A1) |
申请公布日期 |
2015.06.04 |
申请号 |
WO2014US67268 |
申请日期 |
2014.11.25 |
申请人 |
E. I. DU PONT DE NEMOURS AND COMPANY |
发明人 |
BROTHERS, PAUL DOUGLAS;GANGAL, SUBHASH VISHNU;KHASNIS, DIPTI DILIP |
分类号 |
C08F2/12;C08F2/18;C08L27/18 |
主分类号 |
C08F2/12 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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