公开(公告)号：US20240228815A1

公开(公告)日：2024-07-11

申请号：US18285866

申请日：2022-04-07

Applicant: Arkema Inc.

Inventor： Yujie LIU ,  Skip M. SPARKS ,  James J. HENRY

IPC: C09D127/16 ,  C08F214/22 ,  C09D7/20 ,  H01B3/44 ,  H01B13/00 ,  H01B13/16 ,  H02G15/08

CPC classification number: C09D127/16 ,  C08F214/22 ,  C09D7/20 ,  H01B3/445 ,  H01B13/0016 ,  H01B13/165 ,  C08F2800/20 ,  H02G15/08

Abstract: A connecting composition and a scaling coating for wire or cable insulation is disclosed. The connecting composition comprising a PVDF copolymer and a solvent. The solvent comprises cyclic ketone, wherein the weight percent of PVDF copolymer is from 20 to 40 wt. %, preferably 20 to 35 wt. % based on the total weight of PVDF copolymer and solvent. The PVDF copolymer comprises one or more comonomers and at least 75 wt. % vinylidene fluoride units, preferable at least 80% vinylidene fluoride units and has a melt viscosity of 2 to 12, preferably 4 and 10 kPoise at 230° C. and 100 s−1.

公开(公告)号：US20170088989A1

公开(公告)日：2017-03-30

申请号：US15312363

申请日：2015-05-19

Applicant: Arkema Inc.

Inventor： James T. GOLDBACH ,  James J. HENRY ,  Sean M. STABLER ,  Jérôme CHAUVEAU

IPC: D04H1/56 ,  C08F14/22

CPC classification number: D04H1/56 ,  C08F14/22 ,  C08F114/22 ,  C08F214/222 ,  D04H1/4318

Abstract: The invention relates to very high melt flow fluoropolymer compositions, having low melt viscosities. The fluoropolymers have low molecular weights of from 5 kDa to 200 kDa and melt viscosities of less than 2 kilopoise (kP) at 232° C. and 100 s−1. One use for the high melt flow fluoropolymers is in the formation of very small diameters fibers, useful for melt-blown non-woven materials. Fiber diameters of less than 9 microns, and preferably 500 to 2000 nm can be produced.

公开(公告)号：US20210277218A1

公开(公告)日：2021-09-09

申请号：US17261187

申请日：2019-07-24

Applicant: Arkema Inc.

Inventor： James J. HENRY ,  Gregory S. O'BRIEN

IPC: C08L27/16 ,  B32B5/18 ,  B32B27/06 ,  B32B27/20 ,  B32B27/30 ,  B32B1/08 ,  C08F214/22 ,  H01B3/44

Abstract: The invention relates to polyvinylidene fluoride (PVDF) copolymer compositions that have improved crosslinking efficiency and performance. The PVDF copolymer contains a high level (>14 and preferably greater than 16 wt %) of a fluorinated comonomer, and has a high molecular weight as measured by the melt viscosity at 230°C. and 100 sec-1 of 18 to 40 kpoise. The composition can be effectively cross-linked with a low level radiation (high cross-linking efficiency). The cross-linked composition is useful in high-temperature applications, such as automotive wire and cable, and heat shrink tubing.

公开(公告)号：US20180044515A1

公开(公告)日：2018-02-15

申请号：US15557147

申请日：2016-03-10

Applicant: Arkema Inc.

Inventor： Saeid ZERAFATI ,  Ramin AMIN-SANAYEI ,  James J. HENRY ,  Gregory S. O'BRIEN

IPC: C08L27/16

Abstract: The invention relates to blends containing polymers of vinylidene fluoride, having low ductile-brittle transition temperatures and having excellent low temperature impact properties while maintaining the positive aspects of unmodified vinylidene fluoride-containing polymers. The blends of this invention are produced by adding a core-shell impact modifier (CSIM) comprised of a polysiloxane core and a shell compatible with vinylidene fluoride-containing polymer. The blends are further characterized by the presence of a heterogeneous copolymer composition comprised of two or more distinct phases and/or at least one flame and smoke suppressant. The preparation of these new blends can be done by conventional thermoplastic compounding techniques such as twin screw compounding; alternatively, the CSIM can be introduced earlier, such as in the latex. The unique properties of the new blends make them useful in end-use applications where those properties provide performance advantages, such as in wires & cables and in oil and gas applications.

公开(公告)号：US20180044456A1

公开(公告)日：2018-02-15

申请号：US15549746

申请日：2016-02-05

Applicant: Arkema Inc.

Inventor： Adam W. FREEMAN ,  James J. HENRY ,  David A. SEILER

IPC: C08F214/22 ,  C08F2/10 ,  C09D127/16 ,  C08F2/01 ,  C08F259/08 ,  C08L27/16

CPC classification number: C08F214/22 ,  C08F2/01 ,  C08F2/10 ,  C08F259/08 ,  C08L27/16 ,  C08L2205/025 ,  C08L2205/04 ,  C09D127/16 ,  C08F214/08 ,  C08F214/282

Abstract: The invention relates to a heterogeneous, co-continuous copolymer composition of vinylidene fluoride and at least one other comonomer. Preferred comonomers are hexafluoropropylene and perfluoroalkylvinyl ether. The co-continuous morphology is provide by first forming a first phase polymer, then adding one or more comonomers before half of the original monomer stream has been added, and at an effective level to cause phase separation of the copolymer. The co-continuous morphology provides a means for incorporating a high level of comonomer into the copolymer with little or no adverse effect on the melting temperature. The morphology also provides the copolymer composition with a unique combination of properties, including a high melting point, good flexibility and good low temperature impact resistance. The unique properties of the polymer make it useful in end-use application where those properties provide performance advantages, such as in the wire and cable market, and in oil and gas applications.