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1.发明申请FLUOROPOLYMER DISPERSION TREATMENT EMPLOYING OXIDIZING AGENT TO REDUCE FLUOROPOLYMER RESIN DISCOLORATION 审中-公开使用氧化剂降低氟聚合物树脂破坏的氟聚合物分散处理公开(公告)号：US20150344592A1
公开(公告)日：2015-12-03
申请号：US14821023
申请日：2015-08-07
发明人： PAUL DOUGLAS BROTHERS , HEIDI ELIZABETH BURCH , GREGORY ALLEN CHAPMAN , SUBHASH VISHNU GANGAL , DIPTI DILIP KHASNIS , ADAM PAUL SMITH
IPC分类号： C08F6/00
CPC分类号： C08F6/00 , B01J21/063 , B01J23/06 , B01J35/0013 , B01J35/004 , B29C48/395 , B29C48/468 , B29C48/57 , B29C48/625 , B29C48/67 , B29C48/76 , B29C48/92 , C08F6/006 , C08F6/22 , C08F8/06 , C08F8/22 , C08F114/26 , C08F114/28 , C08F214/262 , C08F2800/20 , C08F2810/10 , C08K2003/3072 , C08F6/16 , C08L27/18 , C08F14/26 , C08F2/30 , C08F2/26 , C08F214/26 , C08F214/28 , C08F216/1408 , C08F6/28 , C08K3/18 , C08K3/22 , C08K3/28 , C08K3/01
摘要： A process for reducing thermally induced discoloration of fluoropolymer resin produced by polymerizing fluoromonomer in an aqueous dispersion medium to form aqueous fluoropolymer dispersion and isolating said fluoropolymer from the aqueous medium to obtain the fluoropolymer resin. The process comprises exposing the aqueous fluoropolymer dispersion to oxidizing agent.
摘要翻译： 一种减少在含水分散介质中聚合含氟单体而形成的含氟聚合物的热诱导变色的方法，以形成含氟聚合物水分散体，并从含水介质中分离所述含氟聚合物以获得含氟聚合物树脂。 该方法包括将含氟聚合物水分散体暴露于氧化剂中。
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2.发明申请公开(公告)号：US20170073435A1
公开(公告)日：2017-03-16
申请号：US15342189
申请日：2016-11-03
IPC分类号： C08F2/16
摘要： A process is provided for the polymerization of fluoromonomer to an dispersion of fluoropolymer particles in an aqueous medium in a polymerization reactor, by (a) providing the aqueous medium in the reactor, (b) adding the fluoromonomer to the reactor, (c) adding initiator to the aqueous medium, the combination of steps (b) and (c) being carried out essentially free of hydrocarbon-containing surfactant and resulting in the kickoff of the polymerization of the fluoromonomer, and (d) metering hydrocarbon-containing surfactant into the aqueous medium after the kickoff of polymerization, e.g. after the concentration of the fluoropolymer in the aqueous medium is at least 0.6 wt %, the metering being at a rate reducing the telogenic activity of said surfactant while maintaining surface activity.
摘要翻译： 提供了一种方法，用于通过（a）在反应器中提供水性介质，（b）将含氟单体加入到反应器中，（c）加入含氟单体到聚合反应器中的水性介质中的氟聚合物颗粒的分散体 引发剂到水性介质中，步骤（b）和（c）的组合基本上不含烃类表面活性剂，导致含氟单体的聚合开始，（d）将含烃表面活性剂计量到 聚合引发后的水性介质，例如 在含水介质中的含氟聚合物的浓度为至少0.6重量％之后，计量速率降低了所述表面活性剂的开放时间，同时保持了表面活性。
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3.发明公开公开(公告)号：US20240002553A1
公开(公告)日：2024-01-04
申请号：US18029520
申请日：2021-09-30
发明人： PHAN LINH TANG , MICHAEL DEEMER , VINCENT FRANCO , STEVEN FURYK , STEPHEN JAMES GETTY , DIPTI DILIP KHASNIS , XIAOLIN LIU , ALEXANDER ANTHONY MARCHIONE , ANDRII MATSNEV , BENJAMIN WEAVER MESSMORE , PETER A. MORKEN , CAMERON PARRISH , ADAM PAUL SMITH , EDWARD PATRICK CAREY
IPC分类号： C08F14/22 , C08F14/28 , C08F14/26 , C07C317/22 , C07C317/14 , C07F9/09 , C07C309/31
CPC分类号： C08F14/22 , C08F14/28 , C08F14/26 , C07C317/22 , C07C317/14 , C07F9/09 , C07C309/31
摘要： A process for polymerizing at least one fluoromonomer in an aqueous medium containing initiator and hydrocarbon dispersing agent to form an aqueous dispersion of particles of fluoropolymer. The hydrocarbon dispersing agent comprises a compound of formula I:
R—(XZ)n I
wherein R is a hydrophobic hydrocarbon moiety that comprises one or more saturated or unsaturated, non-cyclic or cyclic aliphatic groups, the percentage of total CH3 groups in relation to the total of CH3, CH2 and CH groups in said one or more aliphatic groups being at least about 70%, said hydrophobic moiety being free of siloxane units; wherein each X may be the same or different and represents an ionic hydrophilic moiety; wherein each Z may be a same or different and represents one or more counter ions for said ionic hydrophilic moiety; and wherein n is 1 to 3.-
公开(公告)号：US20200291141A1
公开(公告)日：2020-09-17
申请号：US16888938
申请日：2020-06-01
IPC分类号： C08F2/16 , C08F14/26 , C09D127/18 , C08F14/18 , C08K5/41
摘要： A process is provided for the polymerization of fluoromonomer to an dispersion of fluoropolymer particles in an aqueous medium in a polymerization reactor, by (a) providing the aqueous medium in the reactor, (b) adding the fluoromonomer to the reactor, (c) adding initiator to the aqueous medium, the combination of steps (b) and (c) being carried out essentially free of hydrocarbon-containing surfactant and resulting in the kickoff of the polymerization of the fluoromonomer, and (d) metering hydrocarbon-containing surfactant into the aqueous medium after the kickoff of polymerization, e.g. after the concentration of the fluoropolymer in the aqueous medium is at least 0.6 wt %, the metering being at a rate reducing the telogenic activity of said surfactant while maintaining surface activity.
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5.发明申请公开(公告)号：US20160122509A1
公开(公告)日：2016-05-05
申请号：US14992421
申请日：2016-01-11
IPC分类号： C08K5/41
摘要： A process is provided for the polymerization of fluoromonomer to an dispersion of fluoropolymer particles in an aqueous medium in a polymerization reactor, by (a) providing the aqueous medium in the reactor, (b) adding the fluoromonomer to the reactor, (c) adding initiator to the aqueous medium, the combination of steps (b) and (c) being carried out essentially free of hydrocarbon-containing surfactant and resulting in the kickoff of the polymerization of the fluoromonomer, and (d) metering hydrocarbon-containing surfactant into the aqueous medium after the kickoff of polymerization, e.g. after the concentration of the fluoropolymer in the aqueous medium is at least 0.6 wt %, the metering being at a rate reducing the telogenic activity of said surfactant while maintaining surface activity.
摘要翻译： 提供了一种方法，用于通过（a）在反应器中提供水性介质，（b）将含氟单体加入到反应器中，（c）加入含氟单体到聚合反应器中的水性介质中的氟聚合物颗粒的分散体 引发剂到水性介质中，步骤（b）和（c）的组合基本上不含烃类表面活性剂，导致含氟单体的聚合开始，（d）将含烃表面活性剂计量到 聚合引发后的水性介质，例如 在含水介质中的含氟聚合物的浓度为至少0.6重量％之后，计量速率降低了所述表面活性剂的开放时间，同时保持了表面活性。
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