A screw includes a screw main body, a conveyance portion conveying a raw material, and a passage provided in the screw main body. The passage includes a first passage element, a second passage element, and a third passage element. The screw main body has a plurality of cylindrical bodies arranged in an axial direction of the rotating shaft. At least a portion of the conveyance portion is formed on outer peripheral surfaces of the cylindrical bodies adjacent to each other, and the passage is formed in the cylindrical body so as to cross over between the adjacent cylindrical bodies.

A device for measuring a strand that is tubular includes a first radiation source to emit terahertz radiation in a first measurement region from an inside onto an inner surface of the strand. A first radiation receiver receives terahertz radiation reflected by the strand in a second measurement region. A first evaluation apparatus determines at least one geometric parameter of the strand in the first measurement region. A second radiation source emits terahertz radiation in the second measurement region from an outside onto an outer surface of the strand. A second radiation receiver receives terahertz radiation reflected by the strand in the second measurement region. A second evaluation apparatus determines at least one geometric parameter of the strand in the second measurement region. A third evaluation apparatus determines a change in the at least one geometric parameter of the strand between the first and second measurement regions.

The invention relates to a multiple extrusion press head for producing tread profiles of tyres, comprising: a base body (12) having a first supply opening (22) for connecting a first extruder, a second supply opening (24) for connecting a second extruder, a third supply opening (26) for connecting a third extruder, and a fourth supply opening for connecting a fourth extruder; a first head part (14) which is mounted such that it can swivel in relation to the base body, and which has a receiving means (32) that is open in the direction of the base body (12); a second head part that is mounted such that it can swivel in relation to the base body (12); at least one flow channel insert (18, 20) that is mounted such that it can swivel in relation to the base body (12), wherein the first head part (14) and the second head part (16) can be brought into a closed state, in which the head parts (14, 16) are connected to one another in a pressure-tight manner, and a first flow channel (34), a second flow channel (36), a third flow channel (38) and a fourth flow channel (40) are formed in the multiple extrusion press head (10), wherein every flow channel is connected to a supply opening. According to the invention, the base body (12) has a fifth supply opening (30) for connecting a fifth extruder, and the multiple extrusion press head (10) has a second flow channel insert (20), which, independently of the first flow channel insert (18), is mounted such that it can swivel in relation to the base body (12), and borders a fifth flow channel (42) that is connected to the fifth supply opening (30).

A thermoplastic elastomer composition forming the contact portion (6) comprises: 30 to 60 parts by weight of component (a): a block copolymer comprising at least two polymer blocks A mainly comprising a vinyl aromatic compound and at least one polymer block B mainly comprising a conjugated diene compound, and/or a hydrogenated block copolymer obtained by hydrogenating the block copolymer; 10 to 30 parts by weight of component (b): a homopolymer of crystalline ethylene or propylene, or a crystalline copolymer mainly comprising the ethylene or propylene; and 25 to 55 parts by weight of component (c): a rubber softener; and in addition to the above-mentioned (a)+(b)+(c)=100 parts by weight; 3 to 15 parts by weight of component (d): a petroleum resin and/or a hydrogenated petroleum resin obtained by hydrogenation.

The present invention relates to a process for preparing and compositions for stiffening materials for use in the manufacturing of footwear using a combination of stiffeners and adhesives.

A laminate film (30) of the present invention includes a heat sealing layer (10) composed of a resin composition including, with respect to 20 to 95 parts by weight of a propylene-based polymer (A) having a melting point (Tm) of equal to or higher than 120° C. and equal to or lower than 170° C. as measured by differential scanning calorimetry (DSC), a total of 5 to 80 parts by weight of two or more kinds of copolymers selected from the group consisting of a propylene.1-butene copolymer (B) containing a unit derived from propylene in an amount of 51 to 95 mol % and a unit derived from 1-butene in an amount of 5 to 49 mol %, wherein the total of the unit derived from propylene and the unit derived from 1-butene is 100 mol %, a copolymer (C) of ethylene and an α-olefin having 3 to 20 carbon atoms, and a copolymer (D) of 1-butene and an α-olefin having 3 carbon atoms or 5 to 20 carbon atoms containing a constitutional unit derived from 1-butene in an amount of 50 to 99 mol % and a constitutional unit derived from an α-olefin having 3 carbon atoms or 5 to 20 carbon atoms in an amount of 1 to 50 mol %, wherein the total of the unit derived from 1-butene and the unit derived from the α-olefin is 100 mol %, wherein each of Component (B), Component (C), and Component (D) does not correspond to Component (A), and the total amount of Component (A), Component (B), Component (C), and Component (D) is 100 parts by weight, and a base layer (20), in which a surface of the heat sealing layer (10) opposite to the base layer (20) has a wet tension of 32 to 45 mN/m.

A coextrusion adapter, including a central conduit having an inlet end and an outlet end and having bottom and top walls that define the height of the central conduit and side walls that define the width of the central conduit, as well as at least one coextrusion conduit having an inlet end and an outlet end. The outlet end feeds into the central conduit near or in the vicinity of the bottom and/or top wall thereof, downstream of the inlet end of the central conduit, and adjusting devices are provided, which are allocated to each outlet end of the at least one coextrusion conduit and are composed of a plurality of adjusting elements, which collectively extend across the width of the outlet end and by actuating drives, are adjustable independently of one another so that it is possible to change the inner width of the respective width section of the outlet end. Adjacent to the outlet end at least one of the side walls has a receiving bore into which it is possible to insert a displacing element that protrudes beyond the side wall into the central conduit.

The present invention relates to a polyester film and a preparation method thereof. The polyester film is formed of a polyester resin having a specific content of isosorbide and diethylene glycol introduced therein, containing a low content of oligomer, and exhibiting a specific intrinsic viscosity, thereby exhibiting excellent mechanical properties, heat resistance and chemical resistance, and good heat sealability.

The present application provides an insulating composite plate comprising: an upper plate layer, a lower plate layer, and a middle plate layer, wherein the upper plate layer and the lower plate layer are made of a thermoplastic material; the middle plate layer is located between the upper plate layer and the lower plate layer, the middle plate layer being a metal mesh; the upper surface of the middle plate layer and the lower surface of the upper plate layer are bonded together, and the lower surface of the middle plate layer and the upper surface of the lower plate layer are bonded together. An insulating composite plate provided by this application has good insulation properties and can shield electromagnetic interference.

An integral geogrid includes a plurality of interconnected, oriented strands having an array of openings therein that is produced from a coextruded multilayer polymer sheet starting material. By virtue of the construction, the coextruded multilayer sheet components provide a crystalline synergistic effect during extrusion and orientation of the integral geogrid, resulting in enhanced material properties that provide performance benefits to use of the integral geogrid in soil geosynthetic reinforcement.