公开(公告)号：US20230087560A1

公开(公告)日：2023-03-23

申请号：US17791948

申请日：2021-01-11

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： William M. Lamanna ,  Klaus Hintzer ,  Markus Hirschberg ,  David J. Lundberg

IPC: C07C43/12 ,  H01L21/67 ,  F28C3/04 ,  H05K7/20

Abstract: A compound having structural formula (II): where R2 is H, CH3, CF3, CH2CF2CF2H, or CH2CF2CF2CF2H; where R2f is a perfluoroalkyl group having 1-4 carbon atoms, optionally comprising either or both of a catenated nitrogen heteroatom and a catenated oxygen heteroatom; where R2f′ is CF3 or CF2CF3; and where R2f″ is CF3 or CF2CF3; with the proviso that when R2f′ is CF3, then R2f″ is CF3, and when R2 is H or CH3, then R2f is not CF3.

公开(公告)号：US20240018084A1

公开(公告)日：2024-01-18

申请号：US18018282

申请日：2021-07-30

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Klaus Hintzer ,  Stefan Huber ,  Valentina Krupp ,  Herbert Koenigsmann ,  Scott D. Schmick ,  Zhongxing Zhang ,  Michael D. Barrera ,  William M. Lamanna ,  Chetan P. Jariwala ,  Markus Hirschberg

IPC: C07C51/48 ,  C02F1/26

CPC classification number: C07C51/48 ,  C02F1/26 ,  C02F2303/16 ,  C02F2101/36

Abstract: The present disclosure provides a process for removing fluoroorganic acidic compounds from a solution comprising at least one protic solvent, comprising: forming a mixture of a solution comprising at least one fluoroorganic acidic compound comprising less than 15 carbon atoms and protic solvent, wherein the solution has a pH of 4, with an extraction composition comprising at least one trialkylamine and organic solvent; reacting the fluoroorganic acidic compound with the trialkylamine to form a hydrophobic ionic compound comprising the anion of the fluoroorganic acidic compound and the cation of the trialkylamine; separating the mixture into a first phase comprising the protic solvent and at most 50 wt. % of the fluoroorganic acidic compound present in the initial solution; and a second phase comprising the organic solvent and hydrophobic ionic compound; removing the second phase from the first phase; and repeating steps aforementioned at least once more, wherein the first phase obtained in the last step is used as the initial solution.