公开(公告)号：US20160122266A1

公开(公告)日：2016-05-05

申请号：US14922237

申请日：2015-10-26

Applicant: THE CHEMOURS COMPANY FC LLC

Inventor： STEPHEN JAMES GETTY ,  GEORGE MURRAY VOLKER ,  PELIN HACARLIOGLU

IPC: C07C17/361

CPC classification number: C07C17/361 ,  C07C19/16

Abstract: An improved process for producing perfluoroalkyl iodides of formula (I) F(CF2CF2)n—I  (I) wherein n is an integer from 2 to 3, wherein the improvement comprises thermolyzing at least one perfluoroalkyl iodide of formula (II), optionally in the presence of perfluoroethyl iodide, formula (III) F(CF2CF2)m—I  (II) F(CF2CF2)p—I  (III) wherein m is an integer greater than or equal to 4, and p is 1, wherein a) the molar ratio of formula (III) to formula (II) is less than 1.0, b) the residence time is from about 0.1 to about 10 seconds, and c) the temperature is from about 450° C. to about 500° C.

Abstract translation: 一种改进的式（I）F（CF 2 CF 2）n -I（I）的全氟烷基碘化物的方法，其中n是2至3的整数，其中改进包括将至少一种式（II）的全氟烷基碘热解，任选地 式（III）F（CF 2 CF 2）m -I（II）F（CF 2 CF 2）p -I（III）的全氟乙基碘的存在，其中m是大于或等于4的整数，p是1，其中a） 式（III）与式（II）的摩尔比小于1.0，b）停留时间为约0.1至约10秒，和c）温度为约450℃至约500℃。

公开(公告)号：US20240002553A1

公开(公告)日：2024-01-04

申请号：US18029520

申请日：2021-09-30

Applicant: THE CHEMOURS COMPANY FC, LLC

Inventor： 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: C08F14/22 ,  C08F14/28 ,  C08F14/26 ,  C07C317/22 ,  C07C317/14 ,  C07F9/09 ,  C07C309/31

CPC classification number: C08F14/22 ,  C08F14/28 ,  C08F14/26 ,  C07C317/22 ,  C07C317/14 ,  C07F9/09 ,  C07C309/31

Abstract: 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.