The present invention relates to a processing aid of a non-fluorinated melt-processable polymer and a masterbatch for a processing aid, features the inclusion of a processing aid comprising a fluoropolymer forming clustered secondary particles each having a particle size of 2 μm to 2 mm and being a combination of primary fluoropolymer particles each having a diameter of 0.02 μm to 0.5 μm, and may accelerate the elimination of melt fracture despite the omission of an interfacial agent and decrease extrusion load upon process to thereby enhance productability.

This disclosure relates to a method of making a fluoropolymer object. The method may include providing a substrate including fluoropolymer comprising units derived from monomers M.sub.1, M.sub.2 and M.sub.3, wherein: M.sub.1 is a vinylidene fluoride; M.sub.2 is a monomer of formula (I): CX.sub.1X.sub.2═CX.sub.3X.sub.4, wherein each of X.sub.1, X.sub.2, X.sub.3 and X.sub.4 is independently selected from H, Cl and F, and wherein at least one of X.sub.1, X.sub.2, X.sub.3 and X.sub.4 is F; M.sub.3 is a monomer of formula (II): CY.sub.1Y.sub.2═CY.sub.3CF.sub.3, wherein each of Y.sub.1, Y.sub.2 and Y.sub.3 is independently selected from H, Cl, F, Br, I and alkyl groups comprising from 1 to 3 carbon atoms which are optionally partly or fully halogenated; and stretching the substrate.

A composite film comprises first and second layers. The first layer comprises a first copolymer of monomers comprising tetrafluoroethylene, hexafluoropropylene, and vinylidene fluoride, wherein the first copolymer contains at least 35 mole percent of vinylidene fluoride monomer units. The second layer is disposed on the first layer, and comprises a second copolymer comprising 50 to 83 weight percent of ethylene monomer units and at least 17 weight percent of alkyl (meth)acrylate monomer units represented by the formula (I) wherein R.sup.1 is H or methyl, and each R.sup.2 is independently an alkyl group having from 1 to 4 carbon atoms. Methods of making the composite film and articles including it are also disclosed.

A belt for an elevator system includes a plurality of tension members arranged along a belt width and extending longitudinally along a length of the belt and a jacket at least partially enclosing the plurality of tension members. The jacket defining a traction side of the belt configured to interface with a traction sheave of an elevator system. The jacket includes a base material layer, and a coating layer positioned over the base material layer formed from a self-extinguishing fluoroelastomer material. A method of forming a belt for an elevator system includes forming a plurality of tension members and encapsulating the plurality of tension members in a jacket. The jacket includes a base material layer and a coating layer formed from the self-extinguishing fluoroelastomer material.

Materials such as poly(vinylidene fluoride) (PVDF) and lithium cobalt (III) oxide (LCO) are recovered and recycled from cathode films isolated from end-of-life batteries, including lithium-ion batteries. Cathode films are immersed in solution including N,N-dimethylformamide (DMF), N-methyl-2-pyrrolidine (NMP), a tetrahydrofuran (THF):NMP mixture, or a THF:DMF mixture. The solution is able to dissolve PVDF, which can then be separated from LCO and a conductive substrate component of the cathode films via alumina column separation. A PVDF product can be precipitated and recovered, while the LCO and conductive substrate can be recovered directly from the alumina column separator. Both the PVDF and LCO are of suitable quality for use in new cathode films. Such recovery is shown to be achievable even at low solid to liquid ratio during the dissolution process. Thus, economically feasible solvent-based recycling of battery cathodes is enabled to prolong the service life of cathode materials and reduce polymeric waste.

The present invention is concerned with a dielectric material comprising a fluoropolymer, wherein at least part of the crystalline region of the fluoropolymer is in the β-phase. The dielectric material of the present invention may show relaxor-like ferroelectricity. The present invention also relates to a novel method of producing such a material, and the use of such a material in a high energy density capacitor. The method comprises layering sheets of PVDF on one another and applying pressure to the multilayer under a temperature which is preferably within 40° C. of the temperature of fusion. Further, the film is preferably quenched.

A method wherein a bulky three-dimensional emblem can be made of a thermoplastic synthetic resin containing a vapor-deposited-metal laminated film. An apparatus for producing a three-dimensional emblem made of a thermoplastic synthetic resin includes a slide jig in which an electrode flat plate die and an electrode projecting die are slidable in a horizontal plane, an electrode recessed die capable of approaching and separating from the slide jig in a vertical direction and at a position where it can oppose the electrode flat plate die and the electrode projecting die, and a high-frequency oscillator that performs high-frequency dielectric heating by continuously generating a high-frequency voltage across the opposing dies, wherein recesses form in a surface of the electrode flat plate die opposing the electrode recessed die, and during high-frequency dielectric heating, a portion of the lower layer material enters the recess and is held on the electrode flat plate die.

A method wherein a bulky three-dimensional emblem can be made of a thermoplastic synthetic resin containing a vapor-deposited-metal laminated film. An apparatus for producing a three-dimensional emblem made of a thermoplastic synthetic resin includes a slide jig in which an electrode flat plate die and an electrode projecting die are slidable in a horizontal plane, an electrode recessed die capable of approaching and separating from the slide jig in a vertical direction and at a position where it can oppose the electrode flat plate die and the electrode projecting die, and a high-frequency oscillator that performs high-frequency dielectric heating by continuously generating a high-frequency voltage across the opposing dies, wherein recesses form in a surface of the electrode flat plate die opposing the electrode recessed die, and during high-frequency dielectric heating, a portion of the lower layer material enters the recess and is held on the electrode flat plate die.

A cascade array includes a first strongback having a first thermoset or thermoplastic composite material. The cascade array further includes a second strongback having a second thermoset or thermoplastic composite material. The cascade array further includes a first vane that is coupled to the first strongback and the second strongback and includes a third thermoset or thermoplastic composite material.

A cascade array includes a first strongback having a first thermoset or thermoplastic composite material. The cascade array further includes a second strongback having a second thermoset or thermoplastic composite material. The cascade array further includes a first vane that is coupled to the first strongback and the second strongback and includes a third thermoset or thermoplastic composite material.