A resin composition includes a resin component including an ethylene-(meth)acrylate copolymer and at least either an ethylene-propylene-diene terpolymer or ethylene acrylate rubber. A content of the ethylene-(meth)acrylate copolymer with respect to a total content of the ethylene-(meth)acrylate copolymer and at least either the ethylene-propylene-diene terpolymer or the ethylene acrylate rubber is 35% by mass or greater and 90% by mass or less. A tensile stress at 19% strain of the resin composition is 2.0 MPa or less, and a tensile stress at break of the resin composition is 10.3 MPa or greater.

An ethylene/tetrafluoroethylene copolymer satisfying the following formula (1):

75≤tan δ(60)/tan δ(5)×100≤225  (1)

wherein peak intensities, determined by Fourier transform infrared spectroscopy, of vibrations derived from a —CF.sub.2H group, a —CF.sub.2CH.sub.2COF group, a —COF group, a —COOH group, a dimer of a —CF.sub.2COOH group and a monomer of a CF.sub.2CH.sub.2COOH group, a —COOCH.sub.3 group, a —CONH.sub.2 group, and a —CH.sub.2OH group satisfy the following formula (2):

PI.sub.A/(PI.sub.B+PI.sub.C+PI.sub.D+PI.sub.E+PI.sub.F+PI.sub.G+PI.sub.H)≥0.60  (2)

wherein the loss tangents (tanδ) and peak intensities (PI) are as defined herein.

A polymeric composition including in weight percent of the polymeric composition: (a) 10 wt % to 30 wt % of a polyolefin elastomer; (b) 1 wt % to 20 wt % of a polypropylene-based polymer; (c) greater than 1 wt % to 20 wt % of a crystalline block composite; (d) 1 wt % to 10 wt % of a maleated polyolefin elastomer; and (e) 40 wt % to 80 wt % of a halogen free flame-retardant filler.

Thermally conductive electrically insulating compositions and structures and devices comprising such materials. In various embodiments, such materials comprise liquid crystal polymer and fillers, wherein the fillers comprise boron nitride and glass fiber. In various embodiments, the liquid crystal polymer is selected from the group consisting of semi-aromatic copolyesters, copolyamides, polyester-co-amides, and mixtures thereof.

Polyethylene compositions described herein have a density from about 0.900 g/cm.sup.3 to about 0.950 g/cm.sup.3, a MI (I.sub.2, 190° C., 2.16 kg) from about 0.1 g/10 min to about 10 g/10 min, an MIR (I.sub.21/I.sub.2) from about 25 to about 80, an M.sub.z greater than or equal to about 150,000 g/mol, and either an M.sub.z/M.sub.n ratio greater than or equal to about 8.0, an M.sub.z/M.sub.w ratio greater than or equal to about 2.4, or an (I.sub.2*M.sub.z/M.sub.n) from about 3 to about 100. The polyethylene compositions are useful in wire and cable, tape, and filament applications, and could be produced using a gas phase or slurry phase, preferably gas phase, polymerization process.

The present invention relates to a cross-linkable polyolefin composition comprising a first olefin polymer (A) comprising a first comonomer comprising epoxy groups, and a second olefin polymer (B) comprising a second comonomer comprising carboxylic acid groups and/or precursor thereof.

The present invention discloses a conductive plastic, based on the total mass of the conductive plastic, which includes: a resin with a low melting point 42%-54%; a toughened resin 4%-10%; carbon black 33%-47%; a dispersant 1%-3%; wherein, the toughened resin is a polymer of acrylic acid and siloxane; and use thereof. The conductive plastic of the present invention has a low melting temperature and high conductive performance, and is suitable for a wire cable shielding layer.

The present invention relates to a fire resistant and/or retardant composition comprising a starch, at least one starch plasticiser, at least one first alkali silicate and at least one phyllosilicate; a method for preparing the fire resistant and/or retardant composition; a device chosen from among a power and/or telecommunications cable, and an accessory for a power and/or telecommunications cable, the cable comprising at least one fire resistant and/or retardant layer of the fire resistant and/or retardant composition, and the cable accessory comprising at least one fire resistant and/or retardant layer of the fire resistant and/or retardant composition; as well as a method for manufacturing such a device.

The present invention relates to a mixed-plastic-polyethylene composition comprising: —a total amount of ethylene units (C2 units) of from 90.00 to 99.00 wt %, and—a total amount of continuous units having 3 carbon atoms corresponding to polypropylene (continuous C3 units) of from 0.01 to 5.00 wt %, with the total amounts of C2 units and continuous C3 units being based on the total weight amount of monomer units in the composition and measured according to quantitative .sup.13C{.sup.1H} NMR measurement, and wherein the composition has—a melt flow rate (ISO 1133, 2.16 kg, 190° C.) of from 0.1 to 2.0 g/10 min; and—a density of from 930 kg/m.sup.3 to 955 kg/m.sup.3, preferably from 932 to 953 kg/m.sup.3, a process for producing said mixed-plastic-polyethylene composition, an article comprising said mixed-plastic-polyethylene composition and the use of said mixed-plastic-polyethylene composition for producing a cable layer.

A water barrier for encapsulating a cable core has a layer of metal foil having a thickness of t.sub.1, and a single layer of a polyethylene-based polymer having a thickness of t.sub.2. The ratio t.sub.2:t.sub.1 is at least seven and the single layer of a polyethylene-based polymer has been deposited onto the metal foil by extrusion at an extrusion temperature of at least 150° C. with the metal foil preheated to a temperature of at least 130° C.