The invention is related to a process for producing modified polyethylene having decreased melt flow rate (5 kg, 190 C.) (MFR). In particular, the present invention is directed to a process in a controlled manner for producing modified polyethylene recyclates having low MFR and low gel content directly by reactive extrusion processing.

A glass run for guiding a door glass in a frame includes: a body including an outer-cabin side wall, an inner-cabin side wall, and a connecting wall which connects the side walls and forms a channel; an outer-cabin side lip which extends toward an inside of the channel from the outer-cabin side wall and is slidably brought into contact with an outer-cabin side surface of the door glass; an inner-cabin side lip which extends toward the inside of the channel from the inner-cabin side wall and is slidably brought into contact with an inner-cabin side surface of the door glass. The outer-cabin side lip and the inner-cabin side lip include an ethylene--olefin copolymer to which a silane crosslinking is applied. The body includes a thermoplastic resin to which the silane crosslinking is not applied.

A process for increasing MFR.sub.2 of a polyethylene copolymer or an ethylene plastomer or elastomer comprising: (I) extruding a copolymer of polyethylene copolymer having a density of 910 to 970 kg/m.sup.3 and an MFR.sub.2 of 1 and 100 g/10 min or an ethylene plastomer or elastomer having a density of 855 to 910 kg/m.sup.3 and an MFR.sub.2 of 0.5 and 100 g/10 min in the presence of 0.1 to 2 wt % of a non-peroxide radical initiator so as to produce a polyethylene copolymer having an MFR.sub.2 of 200 g/10 min or more, or an ethylene plastomer or elastomer having a MFR.sub.2 of 200 g/10 min or more.

A system for producing a functionalized olefinic-based polymer, the system comprising a polymerization zone for producing an olefinic-based polymer comprising a mixing section, a deliquifying section, and a quenching section, wherein at least one section of the polymerization zone has a defined cross-sectional area that continually decreases from a first end to a second end of said section; a devolatilization zone comprising a kneader or extruder, wherein said devolatilization zone is downstream of said polymerization zone and in fluid communication with said polymerization zone; and a functionalization zone downstream of said devolatilization zone and in fluid communication with said devolatilization zone.

A white polyester film, having a specific weight of 0.6-1.2, being a three-layered structure containing two outer layers (A) having a combined thickness taking up 2% to 30% of an overall thickness of the film and a middle layer (B), and having air-bubble cells in both the outer layers (A) and the middle layer (B), has the outer layers (A) formed from a polyester resin and inorganic particles; and has the middle layer (B) having a heat distortion temperature above 120 C. and a melt flow index (MI) of 0.2-1 g/10 min (at 230 C., with a load of 2.16 kg) via crosslinking modified with 0.1-3 PHR of phrperoxide, and inorganic particles.

A polyolefin composition comprising a polyolefin polymer, an alkenyl-functional monocyclic organosiloxane, and an organic peroxide; products made therefrom; methods of making and using same; and articles containing same.

An (electron beam)-curable (EBC) formulation comprising an EBC polyolefin compound having a crystallinity of from 0 to less than 50 weight percent (wt %) and/or having a density of 0.930 gram per cubic centimeter (g/cm.sup.3) or less; and an alkenyl-functional monocyclic organosiloxane (silicon-based coagent). Also included are a cured polyolefin product prepared by electron-beam irradiating the EBC formulation; methods of making and using the EBC formulation or cured polyolefin product; and articles containing or made from the EBC formulation or cured polyolefin product.

A polyolefin composition comprising a polyolefin polymer and an alkenyl-functional monocyclic organosiloxane, products made therefrom, methods of making and using same, and articles containing same.

The present disclosure provides a method for crosslinking polyolefins through using a substantially-miscible, polyolefin-based, silane-crosslinking-agent carrier and related moisture-crosslinkable polyolefin-based compositions. The method is for crosslinking a first polyolefin includes the steps of: (A) selecting a second polyolefin being substantially-miscible with the first polyolefin and having particles of a morphology selected from the group consisting of powder and substantially spherical; (B) admixing the second polyolefin to the first polyolefin; (C) adsorbing a silane-crosslinking agent onto the second polyolefin, thereby rendering a substantially-miscible, polyolefin-based, silane-crosslinking-agent carrier; (D) melt blending the first polyolefin and the substantially-miscible, polyolefin-based, silane-crosslinking-agent carrier, thereby yielding a moisture-crosslinkable polyolefin-based composition; and (E) crosslinking the moisture-crosslinkable polyolefin-based composition.

The present disclosure provides a method for crosslinking polyolefins through using a substantially-miscible, polyolefin-based, silane-crosslinking-agent carrier and related moisture-crosslinkable polyolefin-based compositions. The method is for crosslinking a first polyolefin includes the steps of: (A) selecting a second polyolefin being substantially-miscible with the first polyolefin and having particles of a morphology selected from the group consisting of powder and substantially spherical; (B) admixing the second polyolefin to the first polyolefin; (C) adsorbing a silane-crosslinking agent onto the second polyolefin, thereby rendering a substantially-miscible, polyolefin-based, silane-crosslinking-agent carrier; (D) melt blending the first polyolefin and the substantially-miscible, polyolefin-based, silane-crosslinking-agent carrier, thereby yielding a moisture-crosslinkable polyolefin-based composition; and (E) crosslinking the moisture-crosslinkable polyolefin-based composition.