WO2018234116A1 - Structures stratifiées - Google Patents

Structures stratifiées Download PDF

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Publication number
WO2018234116A1
WO2018234116A1 PCT/EP2018/065654 EP2018065654W WO2018234116A1 WO 2018234116 A1 WO2018234116 A1 WO 2018234116A1 EP 2018065654 W EP2018065654 W EP 2018065654W WO 2018234116 A1 WO2018234116 A1 WO 2018234116A1
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WO
WIPO (PCT)
Prior art keywords
layered structure
polymeric layer
layer
wire
paes
Prior art date
Application number
PCT/EP2018/065654
Other languages
English (en)
Inventor
Yasunobu Sato
Ryan HAMMONDS
Original Assignee
Solvay Specialty Polymers Usa, Llc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Solvay Specialty Polymers Usa, Llc filed Critical Solvay Specialty Polymers Usa, Llc
Priority to US16/624,280 priority Critical patent/US20210146668A1/en
Priority to JP2019567988A priority patent/JP7214663B2/ja
Priority to EP18729985.4A priority patent/EP3642283B1/fr
Priority to CN201880041660.0A priority patent/CN110799594B/zh
Publication of WO2018234116A1 publication Critical patent/WO2018234116A1/fr

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    • H01B3/42—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes polyesters; polyethers; polyacetals
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Definitions

  • the present invention relates to layered structures including a polymeric layer and a varnish layer in contact with the polymeric layer, wires including the layered structures, and methods of making the layered structures.
  • Polyetheretherketone is a semi-crystalline thermoplastic that is highly resistant to thermal degradation and exhibits excellent mechanical properties and chemical resistance, even at high temperatures. Because of its advantageous properties, PEEK has been extruded as an insulation layer on conductive wires where high electrical insulation is needed, such as, for example, magnet wires used in electric motors for automotive applications.
  • Fig. 1 is a schematic depiction of the cross-section of a layered structure according to an exemplary embodiment.
  • Fig. 2 is a schematic depiction of the cross-section of a layered structure including a metal substrate according to an exemplary embodiment.
  • Fig. 3 is a schematic depiction of the cross-section of a layered structure including a metal substrate and an intermediate layer.
  • Fig. 4 is a schematic depiction of a transverse cross-section of a wire with impregnated varnish layer.
  • Fig. 5 is a schematic depiction of a portion of a coil assembly showing the transverse cross-section of two wires with impregnated varnish layer.
  • Described herein is a layered structure including a polymeric layer and a varnish layer in contact with the polymeric layer. Described herein are also wires including the layered structure and methods of making the layered structure.
  • polymeric layers including PEEK and a poly(aryl ether sulfone) (PAES) exhibit adhesion strength with epoxy varnish of more than three times that of PEEK alone without significantly reducing the crystallization temperature of the polymeric layer.
  • PAES poly(aryl ether sulfone)
  • blends of PAES and PEEK exhibit markedly increased peel strength with epoxy varnishes as compared to PEEK alone, and do so without the need for surface treatment or sacrifice of chemical resistance or mechanical properties.
  • the increase in peel strength was surprisingly achieved without a significant reduction in the crystallization temperature, which is critical to maintaining high crystallinity and associated chemical resistance.
  • the peel strength between the polymeric and varnish layers as evaluated in the Examples ranges from 1.30 to 1.80 N/12.7mm, preferably from 1.40 to 1.70 N/12.7mm, most preferably from 1.41 to
  • the crystallization temperature of the polymeric layer ranges from 296 to 298 °C as measured by DSC. Most preferably, the crystallization temperature is 296 °C. The crystallization temperature can be measured as described in the Examples below.
  • the polymeric layer includes PEEK, a PAES, optionally a reinforcing filler, and optionally one or more additives as described below.
  • PEEK poly(ether ether ketone)
  • each R 1 is independently selected from the group consisting of halogen, alkyl, alkenyl, alkynyl, aryl, ether, thioether, carboxylic acid, ester, amide, imide, alkali or alkaline earth metal sulfonate, alkyl sulfonate, alkali or alkaline earth metal phosphonate, alkyl phosphonate, amine and quaternary ammonium; and
  • each a is independently selected from 0, 1, 2, 3, and 4.
  • each a is 0.
  • At least 60 mol %, 70 mol %, 80 mol %, 90 mol %, 95 mol %, 99 mol % of recurring units (R PEEK ) are recurring units of formulae (A).
  • the phenylene moieties in recurring units have 1,3- or 1,4- linkages.
  • the more than 50 mol % of recurring units are recurring units of formula :
  • each R 2 and b, at each instance, is independently selected from the groups described above for R 1 and a, respectively.
  • each b in formulae (A-1) is zero.
  • at least 60 mol %, 70 mol %, 80 mol %, 90 mol %, 95 mol %, 99 mol % of recurring units (R PEEK ) are recurring units of formula (A-l).
  • PAES Poly(aryl ether sulfone)
  • PAES poly(aryl ether sulfone)
  • each R is independently selected from the group consisting of halogen, alkyl, alkenyl, alkynyl, aryl, ether, thioether, carboxylic acid, ester, amide, imide, alkali or alkaline earth metal sulfonate, alkyl sulfonate, alkali or alkaline earth metal phosphonate, alkyl phosphonate, amine and quaternary ammonium;
  • each c equal to or different from each other, is independently selected from 0, 1, 2, 3, and 4, preferably 0;
  • R 4 and R 5 are preferably methyl groups.
  • At least 60 mol %, 70 mol %, 80 mol %, 90 mol %, 95 mol %, 99 mol % of recurring units (R PAES ) are recurring units of formula (B).
  • the PAES is a polyphenylsulfone (PPSU).
  • PPSU polyphenylsulfone
  • R PAES recurring units
  • each R and d at each instance, is independently selected from the groups described above for R 3 and c, respectively.
  • each d in formulae (B-l) is zero.
  • At least 60 mol %, 70 mol %, 80 mol %, 90 mol %, 95 mol %, 99 mol % of recurring units (R PAES ) are recurring units of formula (B-l).
  • PPSU can be prepared by known methods and is available as
  • the PAES is a polyethersulfone (PES).
  • PES polyethersulfone
  • a "polyethersulfone (PES)" denotes any polymer of which more than 50 mol % of the recurring units (R PAES ) are recurring units of formula :
  • each R 7 and e, at each instance, is independently selected from the groups described above for R 3 and c, respectively.
  • each e in formulae (B-2) is zero.
  • At least 60 mol %, 70 mol %, 80 mol %, 90 mol %, 95 mol %, 99 mol % of recurring units (R PAES ) are recurring units of formula (B-2).
  • PES can be prepared by known methods and is available as
  • the amount of PEEK in the polymer composition preferably ranges from about 50 to about 99 wt. %, preferably from about 70 to about 90 wt. %, preferably from about 80 to about 90 wt. %, based on the total weight of the PEEK and the PAES. Most preferably, the amount of PEEK in the polymer composition is about 85 wt. % based on the total weight of the PEEK and the PAES.
  • the PAES is a polysulfone (PSU).
  • PSU polysulfone
  • R PAES recurring units
  • each R and f at each instance, is independently selected from the groups described above for R 3 and c, respectively.
  • each f in formulae (B-3) is zero.
  • At least 60 mol %, 70 mol %, 80 mol %, 90 mol %, 95 mol %, 99 mol % of recurring units (R PAES ) are recurring units of formula (B-3).
  • PSU can be prepared by known methods and is available as UDEL ® PSU from Solvay Specialty Polymers USA, L.L.C.
  • the PAES is selected from the group consisting of PSU, PPSU, and a combination thereof.
  • the PAES includes PSU and PPSU.
  • the PAES is PSU.
  • the amount of PAES in the polymer composition preferably ranges from about 1 to about 25 wt. %, preferably from about 10 to about 20 wt. %, preferably from about 12 to about 17 wt. %, based on the total weight of the PEEK and the PAES. Most preferably, the amount of PAES in the polymer composition is about 15 wt. %, based on the total weight of the PEEK and the PAES.
  • the polymer composition includes PSU in an amount preferably ranging from about 1 to about 20 wt. %, preferably from about 10 to about 20 wt. %, preferably from about 12 to about 17 wt. %, based on the total weight of the PEEK and the PSU. Most preferably, the amount of PSU in the polymer composition is about 15 wt. %, based on the total weight of the PEEK and the PSU.
  • the polymer composition includes PPSU in an amount preferably ranging from about 1 to about 10 wt. %, preferably about 1 to about 7 wt. %, most preferably about 2 to about 5 wt. %, based on the total weight of the PEEK, the PSU, and the PPSU.
  • the polymeric layer may optionally include reinforcing fillers such as fibrous or particulate fillers.
  • a fibrous reinforcing filler is a material having length, width and thickness, wherein the average length is significantly larger than both the width and thickness.
  • such a material has an aspect ratio, defined as the average ratio between the length and the smallest of the width and thickness of at least 5.
  • the aspect ratio of the reinforcing fibers is at least 10, more preferably at least 20, still more preferably at least 50.
  • the particulate fillers have an aspect ratio of at most 5, preferably at most 2.
  • the reinforcing filler is selected from mineral fillers, such as talc, mica, kaolin, calcium carbonate, calcium silicate, magnesium carbonate; glass fibers; carbon fibers, boron carbide fibers; wollastonite; silicon carbide fibers; boron fibers, graphene, carbon nanotubes (CNT), and the like.
  • the reinforcing filler is glass fiber, preferably chopped glass fiber.
  • the amount of the reinforcing filler may range in the case of particulate fillers, from 1 wt. % to 40 wt. %, preferably from 5 wt. % to 35 wt. % and most preferably from 10 wt. % to 30 wt. %, and in the case of fibrous fillers from 5 wt. % to 50 wt. %, preferably from 10 wt. % to 40 wt. %, and most preferably from 15 wt. % to 30 wt. % based on the total weight of the polymer layer.
  • the polymer layer is free of a fibrous filler.
  • the polymer layer may be free of a particulate filler.
  • the polymer composition is free of reinforcing fillers.
  • the polymer composition may further include optional additives such as titanium dioxide, zinc sulfide, zinc oxide, ultraviolet light stabilizers, heat stabilizers, antioxidants such as organic phosphites and phosphonites, acid scavengers, processing aids, nucleating agents, lubricants, flame retardants, a smoke- suppressing agents, anti-static agents, anti-blocking agents, and conductivity additives such as carbon black.
  • optional additives such as titanium dioxide, zinc sulfide, zinc oxide, ultraviolet light stabilizers, heat stabilizers, antioxidants such as organic phosphites and phosphonites, acid scavengers, processing aids, nucleating agents, lubricants, flame retardants, a smoke- suppressing agents, anti-static agents, anti-blocking agents, and conductivity additives such as carbon black.
  • the varnish layer of the layered structure includes copolymer including more than 50 mol % of the recurring units (REPOX) of formula :
  • Y is a C 2 -C6 alkyl group, preferably an ethyl group
  • Z is a group of formula :
  • n is an integer ranging from 0 to 25, and
  • each A is independently selected from the group consisting of a hydroxyl group (-OH) and an oxygen that is bonded to a terminal carbon of an additional Z group.
  • the terminal carbons are the carbon atoms at respective ends of the backbone of the moiety.
  • each A group may be a hydroxyl group or an oxygen that forms an ether crosslink to an additional Z group by reaction with a terminal expoxide group of the epoxy resin described below.
  • the copolymer is branched in this way and is present in the form of a three-dimensional cross-linked thermoset structure.
  • At least 60 mol %, 70 mol %, 80 mol %, 90 mol %, 95 mol %, 99 mol % of recurring units (R EPOX ) are recurring units of formula (D).
  • the varnish layer of the layered structure can be made from an epoxy- resin-based composition comprising an epoxy resin, a hardener, and optionally other ingredients such a solvent.
  • the e oxy resin is a bisphenol A epoxy resin of formula :
  • n is an integer ranging from 0 to 25.
  • the number average molecular weight (Mn) of the epoxy resin preferably ranges from 348 to 4000 g/mol.
  • the amount of the epoxy resin preferably ranges from 30 to 60 wt. %, based on the total weight of the epoxy-based-resin composition.
  • the vanish composition further includes a hardener, preferably ethylene glycol.
  • the hardener is preferably present in an amount ranging from 0.1 to 1.0 wt.%, based on the total weight of the epoxy-based-resin composition.
  • the vanish composition includes 2-butoxyethanol.
  • the 2-butoxyethanol is preferably present in an amount ranging from 10 to 30 wt.%, based on the total weight of the epoxy-based-resin composition.
  • the vanish composition includes xylene.
  • the xylene is preferably present in an amount ranging from 10 to 30 wt. %, based on the total weight of the epoxy-based-resin composition.
  • the vanish composition includes ethybenzene.
  • the ethylbenzene is preferably present in an amount ranging from 1 to 5 wt. %, based on the total weight of the epoxy-based-resin composition.
  • the epoxy-based-resin composition includes the 30 to 60 wt. % of the epoxy resin, 10 to 30 wt. % of the 2-butoxyethanol, 10 to 30 wt. % of the xylene, 1 to 5 wt. % of the ethylbenzene, and 0.1 to 1.0 wt. % of ethylene glycol.
  • the epoxy-based-resin composition can be cured to form a varnish layer by reacting the epoxy resin with the hardener, preferably to form a three- dimensional cross-linked thermoset structure. Curing can be effected by heating the epoxy-based-resin composition at a temperature of less than 200°C, preferably less than 150°C for a time sufficient to form the varnish layer, preferably in the form of a hard coating, as will be known to those of skill in the art.
  • the epoxy-based-resin composition is heated at a temperature at least as high as the glass transition temperature (Tg) of the resulting varnish layer.
  • the layered structures include a polymeric layer and a varnish layer in contact with the polymeric layer.
  • the layered structure includes a metal substrate, as described in detail below.
  • the polymeric layer provides a protective coating to an underlying metal substrate.
  • the polymeric layer can be an electrically insulating layer for a conductive substrate (e.g. an electrical wire). Additionally or alternatively, the polymeric layer can protect an underlying metal substrate from physical damage.
  • the polymeric layer has an average thickness ranging from about 5 ⁇ to about 200 ⁇ , preferably from about 15 ⁇ to about 180 ⁇ , most preferably from about 40 ⁇ to about 180 ⁇ .
  • the polymeric layer is in contact with the varnish layer.
  • the polymeric layer including the PAES and PEEK blend had surprisingly increased adhesive strength to varnish layers, relative to corresponding polymeric layers free of the PAES.
  • the varnish layer can provide any suitable function (e.g. protection of the underlying polymeric layer)
  • the varnish layer additionally or alternatively provides a structural support matrix (e.g. a potting material) for the polymeric layer coated metal substrate.
  • the metal substrate can be a coiled wire
  • the varnish layer can provide a structural matrix to help maintain the wire in a coiled configuration.
  • the varnish layer can have an average thickness ranging from about 25 to about 1000 microns.
  • Fig. 1 is a schematic depiction of a cross-section of one embodiment of a layered structure.
  • Layered structure 100 includes polymeric layer 101 and varnish layer 102 in contact with polymeric layer 101.
  • the PAES in polymeric layer 101 is preferably PSU, PPSU, or a combination thereof, most preferably PSU.
  • the layered structure further includes a metal substrate.
  • the metal substrate is in contact with the polymeric layer.
  • an intermediate layers is disposed between the metal substrate and polymeric layer. In such embodiments, the intermediate layer is in contact with the polymeric layer and the metal substrate.
  • the metal substrate includes copper, aluminum, or a combination thereof.
  • the metal substrate is copper, most preferably low oxygen copper having an oxygen content of 30 ppm or less, preferably 20, ppm or less.
  • oxygen e.g. atmospheric oxygen
  • the surfaces of the metal substrate may contain metal oxides.
  • an aluminum metal substrate may have a surface comprising aluminum oxide, though the bulk material between the substrate surfaces is aluminum metal.
  • the first layer is extrusion coated on the metal substrate.
  • Fig. 2 is a schematic representation of one embodiment of a layered structure having a metal substrate.
  • Layered structure 200 includes polymeric layer 201 , varnish layer 202 in contact with polymeric layer 201 , and metal substrate 203 in contact with polymeric layer 201.
  • Layered structure 200 may be the same as the layered structure 100, except that it includes metal substrate 203.
  • Fig. 2 is a schematic representation of one embodiment of a layer structure having a metal substrate and an intermediate layer disposed between the metal substrate and the polymeric layer.
  • Layered structure 300 includes polymeric layer 301 , varnish layer 302 in contact with polymeric layer 301 , metal substrate 303, and intermediate layer 304 disposed between and in contact with polymeric layer 301 and metal substrate 303.
  • Layered structure 300 may be the same as the layered structure 200, except that it includes intermediate layer 204.
  • potting is a process of filling a complete electronic assembly with a solid or gelatinous compound for resistance to shock and vibration, and for exclusion of moisture and corrosive agents.
  • a varnish layer can be used as a potting material for coils of wire. Once cured, the varnish layer holds the wire (e.g., the turns of wire in a coil) in place during use, provided that the adhesion between the wire and the varnish layer is maintained.
  • blends of a PAES, preferably PSU, or PSU and PPSU, with PEEK in the polymeric layer (i.e. the insulation layer) of a magnet wire results in markedly increased adhesion strength between the polymeric layer and a varnish layer as compared with a polymeric layer free of the PAES— and does so without significantly reducing the crystallization temperature of the polymeric layer.
  • the crystallization temperature of the polymeric layer as measured by DSC is reduced 2°C or less as compared with the crystallization temperature of the same layer free of the PAES. Minimizing the decrease in crystallization temperature results in a more crystalline polymer composition without substantially impaired chemical resistance.
  • the layered structure can include a wire.
  • the metal substrate is the electrically conductive wire
  • the polymeric layer is the wire insulator (e.g. non-conductive wire coating).
  • the wire is a magnet wire.
  • Magnet wire can be used, for example, in the construction of transformers, inductors, motors, speakers, hard disk head actuators, electromagnets, and other applications that require tight coils of insulated wire.
  • the wire may have a circular or non-circular transverse cross-section.
  • the cross-section is non-circular.
  • the wire has a rectangular or rounded rectangular cross-section.
  • Use of a rectangular or rounded rectangular wire is particularly advantageous when the wire is a magnet wire to be coiled because the shape of the wire allows improved packing of the wire strands for a greater number of wires per cross-sectional area. This also results in greater structural stability and thermal conductivity across adjacent turns of wire.
  • Fig. 4 is a schematic depiction of the transverse cross-section of a wire.
  • Wire 400 includes metal substrate 403 and polymeric layer 401 surrounded by varnish layer 402.
  • Wire 400 has a rounded rectangular shape.
  • polymeric layer 401 i.e., the electrical insulation layer
  • varnish layer 402 are concentric about metal substrate 403 (i.e. the electrical conductor).
  • the "transverse cross-section" or “cross-section” when referencing a wire is the cross-section perpendicular to the longitudinal axis of the wire, where the longitudinal axis is the central axis parallel to the length of the wire when the wire is laid straight.
  • varnish layer 402 is continuous and surrounds wire 400, in alternative embodiments, and depending upon how the epoxy-resin-based composition is applied, the varnish layer may be
  • Fig. 5 is a schematic depiction of a portion of a coil assembly 500 with first wire 506 adjacent to second wire 507 as the wires might be arranged in a coil. Additional wires may be present but are not shown. First wire 506 and second wire 507 may be turns of the same wire. First wire 506 includes metal substrate 503 and polymeric layer 501. Similarly, second wire 507 includes metal substrate 533 and polymeric layer 511. Varnish layer 502 impregnates first wire 506 and second wire 507.
  • Fig. 5 includes void 505 that does not include varnish layer 502; however, in an alternate embodiment (not shown) the varnish layer 502 may fill void 505 and extend continuously between first wire 506 and second wire 507.
  • the varnish layer of any embodiment may be continuous or it may be discontinuous, and may contact all or only a portion of the outer surface of the wire. In some embodiments, the varnish layer surrounds the wire.
  • the varnish layer may or may not fully impregnate the coil.
  • turns of wire in a coil may directly contact each other, or may have a continuous or discontinuous varnish layer between them.
  • the layered structures as described herein may include a varnish layer that is at least partly shared with one or more additional layered structures.
  • the varnish layer of one layered structure may also be the varnish layer of one or more additional layered structures.
  • the varnish layer may be shared between two wires or turns of the same wire and the same varnish layer may contact the polymeric layer of two, three, four, or more wires.
  • the polymeric layer of a first wire may contact the polymeric layer of a second wire (or turn of the same wire) in a coil assembly such that the varnish layer is not present between the wires.
  • Exemplary embodiments also include methods of making the layered structures described above.
  • the method includes applying the epoxy-resin-based composition to the polymeric layer, and curing the epoxy-resin-based
  • composition to form a varnish layer at a temperature less than 200°C, preferably less than 150°C.
  • the method includes extruding the polymeric layer on the metal substrate or intermediate layer prior to application of the epoxy- resin-based composition.
  • the method includes extruding the polymeric layer onto the metal substrate to form a wire, applying the epoxy-resin-based composition to the polymeric layer of one or more wires, and curing the epoxy- resin-based composition to form a varnish layer.
  • KetaSpire ® PEEK KT-880P available from Solvay Specialty Polymers
  • Kapton ® 200H polyimide film (thickness 50 ⁇ ) available from Dupont.
  • compositions of the Examples and Comparative Examples are shown below in Table 1. All polymer blends were prepared by first tumble blending pellets of the resins to be blended in their respective amounts for about
  • D3418 Crystallization temperature was measured by DSC using heating and cooling rates of 20°C per minute.
  • Adhesion strength of the epoxy varnish to the PEEK formulations was evaluated using a peel strength test. In each case, a 50 ⁇ thick polyimide film was coated with the epoxy varnish and pre-baked for 2 minutes at 160 °C. An ASTM flex bar (3.2 mm x 12.7 mm x 125 mm) was then placed on top of the polyimide film, and the combination was baked for 30 minutes at 180 °C. After cooling to room temperature (23° C), the adhered polyimide film was cut to match the dimensions of the ASTM flex bar (12.7 mm x 125 mm). Peel strength was evaluated using a Instron machine with chuck distance 100 mm, and rate of 50 mm/min.
  • Example 5 which included 15 wt. % PSU, unexpectedly achieved a 362 % increase in epoxy adhesion over PEEK alone with only a two-degree reduction in crystallization temperature.
  • epoxy adhesion was surprisingly increased at least 300 % over PEEK alone, and again crystallization temperature was reduced by only 2°C.

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  • Organic Chemistry (AREA)
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Abstract

L'invention concerne des structures stratifiées qui comprennent une couche polymère et une couche de vernis en contact avec la couche polymère, des fils comprenant les structures stratifiées, et des procédés de fabrication des structures stratifiées. La couche polymère comprend un poly(étheréthercétone) (PEEK) et un poly(aryléthersulfone) (PAES) et présente de manière surprenante une adhérence à la couche de vernis nettement améliorée sans réduction significative de la température de cristallisation de la couche polymère.
PCT/EP2018/065654 2017-06-20 2018-06-13 Structures stratifiées WO2018234116A1 (fr)

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US16/624,280 US20210146668A1 (en) 2017-06-20 2018-06-13 Layered structures
JP2019567988A JP7214663B2 (ja) 2017-06-20 2018-06-13 層状構造物
EP18729985.4A EP3642283B1 (fr) 2017-06-20 2018-06-13 Structure en couches
CN201880041660.0A CN110799594B (zh) 2017-06-20 2018-06-13 层状结构

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110041480A (zh) * 2019-04-28 2019-07-23 中国科学院上海高等研究院 一种聚合物及其制备方法和在质子交换膜燃料电极催化层中的用途
WO2021219889A1 (fr) * 2020-04-30 2021-11-04 Arkema France Conducteur isolé apte à être utilisé dans un bobinage, bobinage en dérivant et procédés de fabrication correspondants
WO2022175515A1 (fr) 2021-02-22 2022-08-25 Solvay Specialty Polymers Usa, Llc Fils isolés

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Publication number Priority date Publication date Assignee Title
GB1141030A (en) * 1965-05-27 1969-01-22 Union Carbide Corp Resin mixtures
JPS63304068A (ja) * 1987-06-03 1988-12-12 Sekisui Chem Co Ltd 下塗り組成物
WO2014072447A1 (fr) * 2012-11-09 2014-05-15 Solvay Specialty Polymers Usa, Llc Compositions de paek/paes
WO2016102330A1 (fr) * 2014-12-22 2016-06-30 Solvay Specialty Polymers Usa, Llc Compositions de paek/ppsu/pes

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1141030A (en) * 1965-05-27 1969-01-22 Union Carbide Corp Resin mixtures
JPS63304068A (ja) * 1987-06-03 1988-12-12 Sekisui Chem Co Ltd 下塗り組成物
WO2014072447A1 (fr) * 2012-11-09 2014-05-15 Solvay Specialty Polymers Usa, Llc Compositions de paek/paes
WO2016102330A1 (fr) * 2014-12-22 2016-06-30 Solvay Specialty Polymers Usa, Llc Compositions de paek/ppsu/pes

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110041480A (zh) * 2019-04-28 2019-07-23 中国科学院上海高等研究院 一种聚合物及其制备方法和在质子交换膜燃料电极催化层中的用途
CN110041480B (zh) * 2019-04-28 2022-01-28 中国科学院上海高等研究院 一种聚合物及其制备方法和在质子交换膜燃料电极催化层中的用途
WO2021219889A1 (fr) * 2020-04-30 2021-11-04 Arkema France Conducteur isolé apte à être utilisé dans un bobinage, bobinage en dérivant et procédés de fabrication correspondants
FR3109848A1 (fr) * 2020-04-30 2021-11-05 Arkema France Conducteur isolé apte à être utilisé dans un bobinage, bobinage en dérivant et procédés de fabrication correspondants.
WO2022175515A1 (fr) 2021-02-22 2022-08-25 Solvay Specialty Polymers Usa, Llc Fils isolés

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