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公开(公告)号:US20130231020A1
公开(公告)日:2013-09-05
申请号:US13883794
申请日:2011-12-29
申请人: Rong Liao , Xuepu Mao , Richard George Hoeck
发明人: Rong Liao , Xuepu Mao , Richard George Hoeck
IPC分类号: C09D127/18 , D06N3/04 , C08K3/36 , C08K5/06 , C08K3/28
CPC分类号: C09D127/18 , C08F14/26 , C08K3/28 , C08K3/36 , C08K5/06 , D06M15/256 , D06N3/047 , Y10T442/20 , C08K3/10 , C08F2/30
摘要: Disclosed are aqueous dispersions of fluoropolymer comprising from 45 to 70 weight % of non-melt-processible polytetrafluoroethylene (PTFE) particles, and based on the weight of the PTFE particles, from 1 to 15 weight % of nonionic surfactants, and 1-10 weight % of a water soluble alkaline earth metal salt, or 0.1-10 weight % of a colloidal silica. Also disclosed are compositions comprising the aqueous PTFE dispersions of this invention and their uses for coating applications with improved critical cracking thickness.
摘要翻译: 公开了含氟聚合物的水分散体,其包含45至70重量%的不可熔融加工的聚四氟乙烯(PTFE)颗粒,并且基于PTFE颗粒的重量,1至15重量%的非离子表面活性剂和1-10重量% %的水溶性碱土金属盐,或0.1-10重量%的胶体二氧化硅。 还公开了包含本发明的水性PTFE分散体的组合物及其用于涂覆具有改进的临界裂纹厚度的应用。