The invention relates to a nontacky film-forming polymer composition (cover material), and tacky hot melt adhesives in the form of pellets which are coated with the polymer composition and producible by coextruding the hot melt adhesive and the cover material. The film-forming composition comprises 5 to 40% by weight of at least one Fischer-Tropsch wax having a melting point of >95° C. and 30 to 70% by weight of at least one metallocene-catalyzed polyolefin having a softening point of >95° C. and a melt flow index (MFI) (230° C., 2.16 kg) of ≦1000 and ≧300 g/10 minutes. The invention further relates to suitable uses for such hot melt adhesives, methods for their use, and products containing these adhesives.

A nozzle for extruding a composite material from an extruder barrel. The nozzle includes a body and a tapered nozzle passage extending through the body. The tapered nozzle passage having a nozzle inlet opening configured to interface with the extruder barrel, and a nozzle outlet opening, where the tapered nozzle passage has a contoured nozzle passage surface extending between the extruder barrel and the nozzle outlet opening with smooth transitions, free of angles, so that each nozzle passage surface portion, having a corresponding contour, transitions smoothly to each other nozzle passage surface portion, having a respective different contour, from the nozzle inlet opening to the nozzle outlet opening, and the nozzle outlet opening is defined by at least a first edge and a second edge that intersect each other at an acute angle.

Provided is a production apparatus capable of producing a flexible tube whose hardness is naturally varied along the length direction thereof. This mixing valve includes: a first valve configured to distribute a first resin to a resin supply path and a resin discharge path; and a second valve configured to distribute a second resin to the resin supply path and the resin discharge path. In the mixing valve, the mixing proportion between the first resin and the second resin is increased or decreased in association with molding of the flexible tube, by changing a distribution ratio of the first resin in the first valve and a distribution ratio of the second resin in the second valve while keeping constant the total of the supply mounts of the first resin and the second resin supplied to a die.

The current three-dimensional object manufacturing technique relies on the deposition of a pseudoplastic flame retardant material in gel aggregate state. The gel flows through a deposition nozzle because the applied agitation and pressure shears the bonds and induces a breakdown in the material elasticity. The elasticity recovers immediately after leaving the nozzle, and the gel solidifies to maintain its shape and strength.

A method of forming a film (1) of molten polymer material, by extruding said material in a direction (2) out of a narrow exit slot (3), which is an integral part of a wider die chamber (4) of which the major dimension of extension is parallel with the major dimension of the exit slot (3), characterized in that the molten polymer material is formed into one or more flows generally parallel with said major dimension of the exit slot (3), each said flow being pumped in a re-circulating arrangement from the chamber inlet (7) to the outlet (8) through conduits connecting the inlet to the outlet, while fresh molten polymer material is administered from a reservoir into each re-circulating flow.

The disclosure provides a laminated polyolefin microporous membrane having propylene-α-olefin copolymer and methods of producing the same. The laminated polyolefin microporous membrane has a two-type three layer structure in which first polyolefin microporous layers are surface layers and a second polyolefin microporous layer is an intermediate layer which is different from the first polyolefin microporous layer.

A liner assembly and method for lining a damaged pipe junction between a main and lateral pipe is provided. The liner assembly includes a main liner member and a lateral liner tube. A collar disposed near the juncture between the main liner member and lateral liner tube is impregnated with a liquid hydrophobic or hydrophilic material capable of curing in a flexible or rigid state with the material expanding in the presence of water. The hydrophobic or hydrophilic material can also be applied without the use of the collar. When the liner assembly is pressed against the main and lateral pipes, a portion of the hydrophilic or hydrophobic material is forced into the damaged pipe junction.

A cooling apparatus includes a conveying means which conveys a resin composition formed into a sheet shape along a direction parallel to a surface of the sheet-shaped resin composition and a cooling means which cools the resin composition being conveyed by the conveying means. A temperature of the resin composition just before being cooled by the cooling means is in the range of 40 to 60° C. and the cooling means has a cooling ability to cool the resin composition such that a cooling rate of the resin composition is in the range of 0.2 to 5° C./min. Further, the cooling means includes a fan section having at least one outlet port which discharges cooling air of which temperature is in the range of −40 to 0° C. to the resin composition.

A method and apparatus for applying sealant. The apparatus may comprise a shaping portion, a centering portion, and a support system. The shaping portion may have a cavity configured to receive a fastener system and receive a sealant. The centering portion may have a channel configured to position the shaping portion in a desired position around the fastener system when the fastener system is received in the cavity. The support system may be configured to maintain the desired position of the apparatus.

A production method of producing a fiber-reinforced resin molding includes: kneading, in a kneader, molten thermoplastic resin with opened reinforcing fibers obtained by opening a bundle of reinforcing fibers, to produce a kneaded mixture; and placing or charging the kneaded mixture into a molding device to produce a fiber-reinforced resin molding.