The instant disclosure relates to a fluorine-containing ethylene-vinyl alcohol copolymer (EVOH) resin composition as well as mixture and blend thereof. The fluorine-containing EVOH resin composition comprises EVOH and fluorine-containing particles, wherein the fluorine-containing EVOH resin composition has a total fluoride ion content ranging from 45 to 41000 ppm. The invention can reduce the adhesion of EVOH to the inside of the extruder, and effectively reduce the appearance of gel or gelled substance in subsequent finished products.

The present invention pertains to a fluoropolymer film comprising at least one fluoropolymer hybrid organic/inorganic composite [polymer (FH)], to a process for the manufacture of said fluoropolymer film and to uses of said fluoropolymer film in various applications, in particular in electrochemical applications.

A polymer composition comprises a thermoplastic polymer, a polymer additive selected from the group consisting of nucleating agents, clarifying agents, and combinations thereof, and a fluoropolymer. A molded article comprises at least one wall defining a cavity, the wall having an opening therein permitting access to the cavity. The wall comprises a polymer composition comprising a thermoplastic polymer, a polymer additive selected from the group consisting of nucleating agents, clarifying agents, and combinations thereof, and a fluoropolymer. A method for molding a polymer composition is also provided.

Disclosed herein are elastomer compounds comprising: at least one elastomer that is resistant to heat for 70 h at 100° C. such that the at least one elastomer exhibits at least one of the following properties selected from: (a) a change in durometer hardness of no more than 15 points, (b) a change in tensile strength of no more than 40%, and (c) a change in ultimate elongation of no more than 40% The elastomer compound further comprises at least one graphene-based material present in an amount ranging from 0.01 phr to 30 phr relative to the at least one elastomer and at least one carbon black present in an amount ranging from 15 phr to 150 phr relative to the at least one elastomer. Also disclosed are methods of making such compounds, and articles comprising elastomer compounds.

A flame-resistant composite separator for use in a lithium battery, wherein the composite separator comprises a porous layer of a first polymer, having pores and a thickness from 50 nm to 200 μm, and a second polymer permeating into or residing in the pores, wherein: (a) the first polymer comprises a flame-resistant polymer or thermally stable polymer; (b) the second polymer comprises a polymer that is polymerized and/or cured in situ in the pores or is a polymer solidified from a polymer solution inside the pores of the first polymer layer; and (c) the first polymer or the second polymer has a lithium-ion conductivity from 10.sup.−8 S/cm to 2×10.sup.−2 S/cm at room temperature.

A polymer composition comprises a thermoplastic polymer, a polymer additive selected from the group consisting of nucleating agents, clarifying agents, and combinations thereof, and a fluoropolymer. A molded article comprises at least one wall defining a cavity, the wall having an opening therein permitting access to the cavity. The wall comprises a polymer composition comprising a thermoplastic polymer, a polymer additive selected from the group consisting of nucleating agents, clarifying agents, and combinations thereof, and a fluoropolymer. A method for molding a polymer composition is also provided.

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.

The instant disclosure relates to a fluorine-containing ethylene-vinyl alcohol copolymer (EVOH) resin composition as well as mixture and blend thereof. The fluorine-containing EVOH resin composition comprises EVOH and fluorine-containing particles, wherein the fluorine-containing EVOH resin composition has a total fluoride ion content ranging from 45 to 41000 ppm. The invention can reduce the adhesion of EVOH to the inside of the extruder, and effectively reduce the appearance of gel or gelled substance in subsequent finished products.

A fluorocarbon resin composition is applicable to produce a prepreg for use in making a high-frequency circuit board, including a polytetrafluoroethylene resin; a fluorine-containing copolymer of poly fluoroalkoxy or fluorinated ethylene propylene; inorganic powders and an impregnation additive such as hydroxyethyl cellulose; resulted in that the prepreg is capable of increasing a plurality of times for proceeding impregnation-coating, the surface defects prone to occur on a fluorocarbon prepreg during drying, baking and sintering after impregnation are therefore improved at the same time.

The instant disclosure relates to ethylene vinyl alcohol copolymer resin composition and/or pellets thereof including one or more fluorine-containing micro-particles. The ethylene vinyl alcohol copolymer resin compositions and/or pellets thereof may have a melting pressure of 1.7 to 7.0 MPa at a shear rate of 20 s.sup.1 and a melting point temperature of 190 C. EVOH films formed from the EVOH may have a Charpy impact strength of at least 2.3 KJ/m.sup.2 according to ISO 179-1 at 23 C. and an elongation at break of at least 17.8% according to ISO 527-2 at 23 C.