The present invention relates to a polyethylene composition comprising a base resin comprising a low molecular weight ethylene polymer component and a high molecular weight ethylene polymer component, wherein the high molecular weight ethylene polymer component has a higher weight average molecular weight than the low molecular weight ethylene polymer component, wherein the base resin has a density of at least 958.0 kg/m.sup.3, and the polyethylene composition a melt flow rate MFR.sub.2 (190° C., 2.16 kg) of from 0.50 to 0.80 g/10 min and a molecular weight distribution being the ratio of the weight average molecular weight and the number average molecular weight, Mw/Mn, of from 10.0 to 15.0, a process for producing said polyethylene composition, an article comprising said polyethylene composition and the use of said polyethylene composition for the production of a film.

The present invention relates to a pipe which comprises (i) a peroxide-crosslinked polyethylene, and (ii) a sterically hindered amine which comprises the following repeating unit of formula (I).

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Provided are an ethylene-based polymer capable of obtaining a film in which thickness unevenness is reduced, a method of producing the ethylene-based polymer, and a film containing the ethylene-based polymer. In the ethylene-based polymer according to the present invention, the following Expressions (1) and (2) are satisfied:

0.362≤ηL.sup.1,256%/ηL.sup.10%≤0.466  (1)

0.0282≤I5.sup.2,506%/I1.sup.2,506%≤0.0328  (2)

A material comprising an encapsulated component within a shell, a rupture initiator associated with the encapsulated component, and a polymeric matrix material, wherein the encapsulation is adapted to fail upon activation of the rupture initiator allowing the encapsulated component to be liberated to initiate a reaction or increase the reactivity of the material.

A thermoplastic polyolefin composition which is capable of being shaped and repeatedly recycled, comprises propy-lene-based polymers, said composition being modified with 0.01-5 wt % of organic oligomeric silanes selected from partially hydrolyzed alkoxy substituted vinyl, allyl or methacryl silanes, and blends thereof, and 0.0005-0.5 wt % of a compound capable of generating free radicals

A resin impregnating device (1) is used in a method for producing a reinforcing bar and has a chamber for holding a liquid thermoplastic resin. A plurality of guide plates (4A-4C) is arranged in the chamber along a traveling direction of a plurality of strands of reinforcing fiber material (Fb). Through holes (41) in two of the guide plates (4A, 4C) guide or spread the strands of the reinforcing fiber material Fb away from each other, and a single through hole (42) in an intermediate one of the guide plates (4B) guides or converges all the strands of the reinforcing fiber material (Fb) towards each other.

An additive masterbatch composition comprising a semi-crystalline polyolefin carrier resin and an additive package comprising a product of a reaction of an acidic condensation catalyst and a secondary diarylamine. A moisture-curable polyolefin composition comprising the additive masterbatch composition and a (hydrolyzable silyl group)-functional polyolefin prepolymer. A method of making the compositions; a moisture-cured polyolefin composition prepared therefrom; a manufactured article comprising or made from the formulation; and a method of using the manufactured article.

The present invention is directed to a polyethylene-polypropylene composition comprising a blend (A) being a recycled material, said blend comprising polypropylene and polyethylene, and a compatibilizer (B) being a C.sub.2C.sub.3C.sub.4 terpolymer. Further, the present invention is directed to an article comprising said polyethylene-polypropylene composition and a process for preparing said polyethylene-polypropylene composition. The present invention is also directed to the use of a compatibilizer (B) being a C.sub.2C.sub.3C.sub.4 terpolymer for improving the impact-stiffness balance and the morphology of the blend (A).

A polyolefin-based resin foamed sheet includes a polyolefin-based resin, wherein a thickness of the foamed sheet is 0.05-0.5 mm, a 25% compression hardness defined in JIS K6767(1999) is 20-100 kPa, a ratio of cell sizes in longitudinal and thickness directions is 9-30, a ratio of cell sizes in width and thickness directions is 9-30, and an average cell film thickness in the thickness direction of the foamed sheet is 2-7 μm.

A polyethylene powder having a limiting viscosity [η] of 2.0 dl/g or more and less than 20.0 dl/g as measured in decalin at 135° C., wherein the polyethylene powder presents a percentage decrease from a specific surface area A measured by the BET method before heating at 120° C. for 5 h to a specific surface area B measured by a BET method after heating at 120° C. for 5 h, ((A−B)/A×100), of 0.1% or more and less than 35%.