A fitting (1) of weldable, thermoplastic material of a modular structure, comprising a number of elements (2, 3, 9, 10, 11, 12), at least one main element (2, 9) and at least one connecting element (3, 10, 11, 12), characterized in that the elements (2, 3, 9, 10, 11, 12) have end faces (4, 5) at right angles to the center axis (8), and the elements (2, 3, 9, 10, 11, 12) are welded to one another exclusively at the end faces (4, 5).

A fitting (1) of weldable, thermoplastic material of a modular structure, comprising a number of elements (2, 3, 9, 10, 11, 12), at least one main element (2, 9) and at least one connecting element (3, 10, 11, 12), characterized in that the elements (2, 3, 9, 10, 11, 12) have end faces (4, 5) at right angles to the center axis (8), and the elements (2, 3, 9, 10, 11, 12) are welded to one another exclusively at the end faces (4, 5).

A coupling piece for an outer end of a multilayered conduit, includes a coupling pipe which is provided on the outer side with a radially upright wall, wherein the wall is widened in an axial direction at a radial distance from the outer side of the body. The outer side of the coupling pipe, the upright wall and the widened portion enclose an annular insertion space into which the outer end of the conduit can be directly inserted, wherein the inner wall of the coupling pipe is reinforced with an adjacent reinforcing layer which has a greater strength than the material of the coupling pipe. The reinforcing layer is provided with axial engaging elements, while the inner wall is provided with axial connecting elements which correspond with and connect to the engaging elements.

A coupling piece for an outer end of a multilayered conduit, includes a coupling pipe which is provided on the outer side with a radially upright wall, wherein the wall is widened in an axial direction at a radial distance from the outer side of the body. The outer side of the coupling pipe, the upright wall and the widened portion enclose an annular insertion space into which the outer end of the conduit can be directly inserted, wherein the inner wall of the coupling pipe is reinforced with an adjacent reinforcing layer which has a greater strength than the material of the coupling pipe. The reinforcing layer is provided with axial engaging elements, while the inner wall is provided with axial connecting elements which correspond with and connect to the engaging elements.

The present invention is a method for manufacturing inflatable articles, or bladders for inflatable articles, that is time-efficient, simple, inexpensive and permits the uninterrupted manufacture of numerous and even customized article or bladder configurations and sizes, without expensive configuration-specific, metal tooling. The method includes the steps of applying a barrier material to a side of a first film, providing a second film with the first film so that the barrier material is disposed between the first and second films, adhering the first film to the second film so that the films are sealed together in areas except where the barrier material has been applied to form at least one inflatable compartment and sealed peripheral edge, and cutting along the sealed peripheral edge to form an inflatable article or bladder for use in an article of manufacture. The barrier material may be a paint, ink, paper or surface treatment that effectively prevents the first film from adhering to the second. The inflatable article or bladder of the present invention may be used as or in athletic equipment, for example, including footwear.

The present invention is a method for manufacturing inflatable articles, or bladders for inflatable articles, that is time-efficient, simple, inexpensive and permits the uninterrupted manufacture of numerous and even customized article or bladder configurations and sizes, without expensive configuration-specific, metal tooling. The method includes the steps of applying a barrier material to a side of a first film, providing a second film with the first film so that the barrier material is disposed between the first and second films, adhering the first film to the second film so that the films are sealed together in areas except where the barrier material has been applied to form at least one inflatable compartment and sealed peripheral edge, and cutting along the sealed peripheral edge to form an inflatable article or bladder for use in an article of manufacture. The barrier material may be a paint, ink, paper or surface treatment that effectively prevents the first film from adhering to the second. The inflatable article or bladder of the present invention may be used as or in athletic equipment, for example, including footwear.

Methods and apparatuses for bonding polymeric parts are disclosed. Specifically, in one embodiment, the polymeric parts are bonded by plastically deforming them against each other while they are below the glass transition temperatures. A method includes: placing a first polymeric part in contact with a second polymeric part; and plastically deforming the first polymeric part and the second polymeric part against each other to bond the first polymeric part to the second polymeric part. Additionally, during the plastic deformation, a temperature of the first polymeric part is less than a glass transition temperature of the first polymeric part and a temperature of the second polymeric part is less than a glass transition temperature of the second polymeric part.

Methods and apparatuses for bonding polymeric parts are disclosed. Specifically, in one embodiment, the polymeric parts are bonded by plastically deforming them against each other while they are below the glass transition temperatures. A method includes: placing a first polymeric part in contact with a second polymeric part; and plastically deforming the first polymeric part and the second polymeric part against each other to bond the first polymeric part to the second polymeric part. Additionally, during the plastic deformation, a temperature of the first polymeric part is less than a glass transition temperature of the first polymeric part and a temperature of the second polymeric part is less than a glass transition temperature of the second polymeric part.

The present invention relates to a non-oriented film, a laminated body, and a package; the non-oriented film has a sealant layer composed of a resin composition including 30 to 90 mass % of a propylene-based polymer (A) and 10 to 70 mass % of a 1-butene/-olefin copolymer (B), and a substrate layer; the propylene-based polymer (A) has a melting point (Tm) measured by differential scanning calorimetry (DSC) of 120 C. or higher and 135 C. or lower, and contains 50 to 90 mol % of a propylene-derived constitutional unit; the copolymer (B) has a melting point measured by DSC of lower than 120 C. or has no melting point observed by DSC, and contains 50 to 99 mol % of a 1-butene-derived constitutional unit and 1 to 50 mol % of an -olefin-derived constitutional unit (provided that a total of the 1-butene-derived constitutional unit and the -olefin-derived constitutional unit is 100 mol %), the sealant layer has a thickness of 3 to 30 m, and the substrate layer has a thickness of 10 to 100 m.

A 4-methyl-1-pentene copolymer composition (X), including 50 to 90 parts by mass of a 4-methyl-1-pentene-based polymer (A) having a melting point in a range of 200 to 250 C. as measured by DSC, 5 to 30 parts by mass of a 4-methyl-1-pentene-based polymer (B) having a melting point of lower than 200 C. or having no melting point observed as measured by DSC, and 5 to 30 parts by mass of a thermoplastic elastomer (C) other than the (A) and the (B), and satisfying the following requirements (a) and (b), a molded body composed of the composition (X), and a method for producing a rubber hose. Requirement (a): the tan peak temperature determined by dynamic viscoelasticity measurement in a temperature range of 0 to 240 C. at a frequency of 10 rad/s is 0 to 60 C.; and requirement (b): the tan peak value determined by dynamic viscoelasticity measurement in a temperature range of 0 to 100 C. at a frequency of 10 rad/s is 0.15 to 0.8.