The invention provides ethylene-based composition comprising a blend of an ultra-high molecular weight polyethylene having an intrinsic viscosity from 5 to 50 deciliters/gram; a thermoplastic polyolefin elastomer having a density of from 0.850 to 0.910 g/cc; and, optionally, a fluoropolymer.

The present invention refers, in its generality, to a tubular reactor for homo or copolymerization of olefins, with one of more initiator injection devices. The invention also refers to an initiator device in a process fluid stream in a reactor polymerization reactor, and to a process for the production of polymers and copolymers of ethylene, particularly low density polymers (LDPE), that use the said device.

The present invention relates to a polymer composition for use in thermal spray coating application comprising an -olefin homopolymer or copolymer, a functionalized a-olefin homopolymer or copolymer, a polyolefinic elastomer and an anti-corrosion additive. Such polymer compositions have a good long-term corrosion resistance, good coating to substrate adhesion, good long-term adhesion and good long-term weather resistance.

The present invention relates to a polymer composition for use in thermal spray coating application comprising an -olefin homopolymer or copolymer, a functionalized a-olefin homopolymer or copolymer, a polyolefinic elastomer and an anti-corrosion additive. Such polymer compositions have a good long-term corrosion resistance, good coating to substrate adhesion, good long-term adhesion and good long-term weather resistance.

The present invention relates to a polymer composition for use in thermal spray coating application comprising an -olefin homopolymer or copolymer, a functionalized a-olefin homopolymer or copolymer, a polyolefinic elastomer and an anti-corrosion additive. Such polymer compositions have a good long-term corrosion resistance, good coating to substrate adhesion, good long-term adhesion and good long-term weather resistance.

Polymeric coating compositions and articles coated with the polymeric coating compositions are provided. The polymeric coating composition can include an ethylene-based polymer that exhibits desirable melting properties and molecular weight distribution. The polymeric coating composition can provide a thin coating layer on an article while still providing advantageous properties, such as seal strength.

Polymeric coating compositions and articles coated with the polymeric coating compositions are provided. The polymeric coating composition can include an ethylene-based polymer that exhibits desirable melting properties and molecular weight distribution. The polymeric coating composition can provide a thin coating layer on an article while still providing advantageous properties, such as seal strength.

A method for forming a nanocomposite coating on a substrate is described. The nanocomposite substrate comprises polyethylene, functionalized carbon nanotubes, and nanoclay. The method may use microparticles of UHMWPE with functionalized carbon nanotubes and clay nanoplatelets to form a powder mixture, which is then applied to a heated substrate to form the nanocomposite coating. The nanocomposite coating may have a Vickers hardness of 10.5-12.5 HV and a debonding strength of at least 25 N.

A method for forming a nanocomposite coating on a substrate is described. The nanocomposite substrate comprises polyethylene, functionalized carbon nanotubes, and nanoclay. The method may use microparticles of UHMWPE with functionalized carbon nanotubes and clay nanoplatelets to form a powder mixture, which is then applied to a heated substrate to form the nanocomposite coating. The nanocomposite coating may have a Vickers hardness of 10.5-12.5 HV and a debonding strength of at least 25 N.

A method may include polymerizing ethylene in a tubular reactor, where the polymerization is substantially free of a chain transfer agent. A method may include polymerizing ethylene in a tubular reactor, the ethylene having a specific delivery pressure and the polymerization having one or more specific peak temperatures. The molecular weight of the resulting polyethylene may be controlled by the selection of the delivery pressure and the one or more peak temperatures.