A method for producing a polypropylene sheet having a thickness of 0.5 to 5 mm, the method comprising; a step 1 of preparing a precursor in which a first biaxially oriented polypropylene film having a thickness of less than 0.15 mm and a melting point Tmh and a second biaxially oriented polypropylene film having a thickness of less than 0.15 mm and a melting point of Tml are alternately laminated; a step 2 of bringing a heating element into contact with an outermost layer of the precursor to thermally seal layer of the films, where Tmh−Tml≥8(° C.) where the melting point is measured by a differential scanning calorimeter (DSC) under the condition at 30° C. to 230° C. and a heating rate of 10° C./min.

A method is provided for fabricating a unitary element, such as an exercise weight, including a composite material. The method includes providing a plurality of solid fragments including at least one non-thermoplastic material. The method further includes providing a plurality of solid particles including at least one thermoplastic polymer and/or elastomer material, at least 75% of the solid fragments having sizes in a fragment size range from zero to 32 millimeters and at least 75% of the solid particles having sizes in a particle size range from zero to 1.5 millimeters. The method further includes forming a mixture of the plurality of solid fragments and the plurality of solid particles, the mixture including 90% to 20% of the fragments by volume and 10% to 80% of the particles by volume. The method further includes molding or extruding the mixture into a unitary element through the application of heat and/or pressure.

The invention provides a heat-shrinkable polyester-based film roll obtained by winding a heat-shrinkable polyester-based film with a shrinkage ratio of 30% or more in a film main shrinkage direction in hot water at 90° C. for 10 seconds. The film roll has a winding length of 2000-25000 m and a width of 400-2500 mm. The film has a thickness of 5-40 μm. In thickness unevenness in a width direction of the film on a surface layer of the film roll, there are positions having concave thickness patterns, and in a concave portion that has a maximum thickness difference (maximum concave portion), thickness unevenness in the maximum concave portion, which is obtained from the maximum thickness difference in the maximum concave portion and an average thickness of the film is 10% or less. The winding hardness of the surface layer of the film roll is 400-800.

The present patent application relates to a method of manufacturing a multilayered composite film comprising a step of co-extruding at least three layers (a), (b) and (c), of which the layer (a) forms an outward surface of the composite film; the layer (c) forms a surface of the composite film facing or coming in contact with a good to be packaged; and the layer (b) is disposed between the layer (a) and the layer (c). Further, the method includes a step of biaxial orientation of the composite film thus co-extruded. Therein, the layer (a) contains or consists of a thermoplastic resin. The layer (b) contains or consists of a polyvinylidene chloride (PVdC) resin. The layer (c) contains or consists of a resin, preferably sealable, in particular heat-sealable resin. Therein, any crosslinking of the composite film by means of radioactive radiation, in particular by means of beta, gamma, X-ray and/or electron irradiation, is omitted during the manufacturing of the composite film and/or thereafter.

A method of manufacturing a garment includes forming a multilayer composition having one or more design elements. The multilayer composition is formed by applying a material that includes the one or more design elements to an elastomeric polymer base layer. The method further includes heating the multilayer composition, and after the multilayer composition has been heated, then aligning each design element with a respective three-dimensional design feature of a three-dimensional mold, and pressing the heated multilayer composition into the three-dimensional mold. The method further includes cooling the pressed heated multilayer composition to form a three-dimensional molded multilayer composition that includes one or more three-dimensional design elements; and forming a three-dimensional garment from the three-dimensional molded multi-layer composition.

Device for forming a tube, for example a packaging tube, from a sheet (3), said device comprising at least one welding rod (2), means for welding and pressurizing the welded zone (7-9) and means (4-6) for driving the sheet (3) along the rod (2). The device also comprises means (10-12, 14) that reduce the friction between the welding rod (2) and the sheet (3).

A shaped sorbent is described comprising a plurality of layers of photopolymerised resin containing particles of a sorbent material. The shaped sorbent may be used as a getter for use in gettering one or more contaminants in a sealed enclosure.

A display cover can include a rectangular body having opposing outer and inner surfaces and an edge that connects the outer and inner surfaces. A central region, widthwise edge regions, and lengthwise edge regions can each define a portion of the outer and inner surfaces, and the edge regions each can extend from the central region to define a portion of the edge. The central region can be planar such that a plane lies between the outer and inner surfaces throughout the central region. Each of the widthwise edge regions can curve away from the central region such that a line that is tangent to the outer surface at the edge region is substantially perpendicular to the plane of the central region. The body's average thickness can be less than or equal to 0.5 mm, and the body can comprise at least a majority, by weight, of a polymeric material.

A filament for three-dimensional modeling includes two or more kinds of resins; a fiber; and a compatibilizing agent, and has a sea-island structure including a sea part and island parts, the sea part including at least one kind of the two or more kinds of resins and the island parts including at least one kind of the two kinds of resins.

The present disclosure provides oriented multilayer films including a first layer, a second layer disposed on the first layer and a third layer disposed on the second layer, where the first layer and the third layer include a polyethylene independently selected from (i) a polyethylene having a density of about 0.94 g/cc or greater; (ii) a polyethylene copolymer including ethylene and a C.sub.4-C.sub.12 alpha-olefin and having a density 7 from about 0.927 g/cc to about 0.95 g/cc; or (iii) a mixture thereof, and at least one of the first layer or the third layer includes the polyethylene copolymer, the second layer includes a polyethylene composition having a density of about 0.91 g/cc or greater and the oriented multilayer film has a haze of about 10% or less and a 1% secant modulus in the direction of stretching of about 500 MPa or greater.