公开(公告)号：US20170342177A1

公开(公告)日：2017-11-30

申请号：US15532063

申请日：2015-12-01

Applicant: THE CHEMOURS COMPANY FC, LLC

Inventor： SHENG PENG ,  PHAN LINH TANG ,  MING HONG HUNG ,  RONALD EARL USCHOLD

IPC: C08F214/18 ,  C08F214/20 ,  C08F214/26

CPC classification number: C08F214/182 ,  C08F214/20 ,  C08F214/22 ,  C08F214/26 ,  C08F214/265 ,  C08J5/18 ,  C08J2327/12 ,  C08J2327/18 ,  C09D127/12

Abstract: The present invention provides 1,3,3,3-tetrafluoropropene (HFO-1234ze) copolymers comprising 1,3,3,3-tetrafluoropropene and one or more comonomers selected from the group consisting of vinyl fluoride (VF), vinylidene fluoride (VF2), tetrafluoroethylene (TFE), chlorotrifluoroethylene (CTFE), hexafluoropropylene (HFP), and perfluoro(alkyl vinyl ether) (PAVE), wherein said alkyl contains 1 to 5 carbon atoms, the copolymers being a fluoroplastic or a fluoroelastomer, depending upon monomer content.

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.

公开(公告)号：US20230015548A1

公开(公告)日：2023-01-19

申请号：US17784819

申请日：2020-12-17

Applicant: THE CHEMOURS COMPANY FC, LLC

Inventor： PHAN LINH TANG ,  PETER A. MORKEN ,  ERIC CHAUVIGNE ,  LEE GRANT SPRAGUE ,  REBECCA JILL DOOLEY ,  BENJAMIN WEAVER MESSMORE

IPC: C08F214/26 ,  C08F214/22 ,  C08K5/14 ,  C08L27/16

Abstract: An elastomeric fluoropolymer includes the following monomer units: about 45 mol % to about 65 mol % —CF2—CH2—; about 8 mol % to about 30 mol % —CF2—CF2—; about 4.5 mol % to about 25 mol % —CF2—CF(O—CF3)—; and about 6 mol % to about 20 mol % —CF2—CF(O—CF2—CF2—O—(CF2—O)n—CF3)—, where n is 1 or 2. In some embodiments, a composition includes an elastomeric fluoropolymer and at least one additive. In some embodiments, a composition includes a first elastomeric fluoropolymer and a second elastomeric fluoropolymer blended with the first elastomeric fluoropolymer. The first elastomeric fluoropolymer includes the following monomer units: about 45 mol % to about 65 mol % —CF2—CH2—; about 8 mol % to about 30 mol % —CF2—CF2—; about 4.5 mol % to about 25 mol % —CF2—CF(O—CF3)—; and about 6 mol % to about 20 mol % —CF2—CF(O—CF2—CF2—O—(CF2—O)n—CF3)—, where n is 1 or 2.