A battery packaging material that is excellent in electrolytic solution resistance and ink printing characteristics of the surface. A battery packaging material comprising a laminate having at least a protective layer, a base material layer, a barrier layer, and a heat-sealable resin layer in this order, wherein a maximum value A of absorbance detected in an infrared wavenumber range of 2800 to 3000 cm.sup.−1 and a maximum value B of absorbance detected in an infrared wavenumber range of 2200 to 2300 cm.sup.−1 satisfy the relation: 0.05≤B/A≤0.75, as measured from an outermost surface of the protective layer, using attenuated total reflection Fourier transform infrared spectroscopy.

The invention relates to an elastic membrane comprising an elastomer having an elongation at break of greater than 150% measured according to DIN 53504, wherein the thermoplastic elastomer (P1) comprises a polyurethane elastomer based on the following components: 11 % to 79% by weight of a mixture of at least one diol (D1) and at least one isocyanate (I1), 21% to 89% by weight of at least one compound (C1) having at least two isocyanate-reactive groups.

Provided is a light weight and remarkably flexible sheet-shaped radio wave absorber having excellent radio wave absorbing capacity in milliwave band frequencies. The invention is a milliwave band radio wave absorption sheet comprising a radio wave reflection layer (A), a radio wave absorption layer (B) disposed above the layer (A) so as to be parallel thereto, and a protective layer (C) disposed above the layer (B) so as to be parallel thereto. The layer (B) has, at a frequency of 79 GHz, a dielectric constant, wherein the real part is 10 to 20 and the absolute value of the imaginary part is 4 to 10. The layer (B) has a film thickness of 200 to 400 μm. The absolute value of the imaginary part/real part from the dielectric constant is within a range of 0.30 to 0.60. The layer (C) has, at a frequency of 79 GHz, a dielectric constant, wherein the real part is 1.5 to 8.0 and the absolute value of the imaginary part is less than 1.0, and has a film thickness of 50 to 200 μm. In the milliwave band radio wave absorption sheet, the optical reflectance at an incident angle of 60° is 50% or greater, and the optical reflectance at an incident angle of 20° is 25% or greater. In addition, the invention provides a milliwave band radio wave absorption method using the radio wave absorption sheet, and a radio wave damage prevention method involving the installation of the radio wave absorption sheet.

A composite laminate structure includes one or more layers of prepreg and a thermoplastic polyurethane film layer on the surface of the one or more prepregs. A method of making a composite laminate structure including a thermoplastic polyurethane film is also provided.

A thermoset sealant film includes an epoxy and a hardener. The hardener is integrated with the epoxy and remains physically distinct from the epoxy in a formed state of the thermoset sealant film.

Golf balls having covers made of thermoplastic polyurethane compositions are provided. Multi-piece golf balls can be made. Polyurethane primer coatings and polyurethane top-coatings are applied to the thermoplastic polyurethane cover. Different coating methods can be used. Isocyanate-rich and polyol-rich polyurethane coatings can be applied. In one embodiment, the golf ball can be treated with a multi-functional isocyanate prior to applying the coatings. The polyurethane cover composition and surface coatings can further include catalysts, ultraviolet (UV)-light stabilizers, and other additives. Heat is used to cure the coatings. The coating methods have many benefits and the finished balls have good physical properties.

Class-A components (CAC) include a first and second skin layer each having a polymer matrix and a fiber reinforcing material embedded within the polymer matrix, a third layer disposed between the first and second skin layers and including a third polymer matrix and a filler material interspersed within the third polymer matrix, and a Class-A finish coat applied to the second skin layer. The fiber reinforcing materials include a plurality of substantially aligned carbon fibers and a plurality of low strength regions staggered throughout the carbon fibers. The CAC can be integrated with a rigid vehicle frame. The CAC can be a structural component. The CAC can be a door, a roof panel, or a hood. The CAC can include a layer of woven fibers between the Class-A finish coat and the second skin layer and a portion of the woven fibers can be visible through the Class-A surface layer.

In order to solve problems of strength and volume of part, the invention provides an article reinforced by multi-dimensional fibers and a method for manufacturing the article. The article includes a core portion and a shell layer portion. The core portion is made of thermoplastic resin and the fibers in which a majority of and a minority of the fibers are respectively arranged in a major and a minor directions. The method includes: preparing a core portion made of thermoplastic resin and the fibers in which a majority of and a minority of the fibers are respectively arranged in a major and a minor directions, loading the core portion into a mold, and forming a shell layer portion in the mold to enclose the core portion. The article manufactured by the method of this invention can reduce the weight and increase the strength of the parts.

A composite cooling film includes a reflective microporous layer that comprises a continous phase comprising an organic polymer, an ultraviolet-absorbing layer of organic polymeric material that is disposed outwardly of the reflective microporous layer, and an anti soiling layer being disposed outwardly of the reflective microporous layer.

A method of fabricating a composite material, the method comprises the steps of a) providing a first layer of a fibre reinforced polymer, preferably a thermoset FRP, b) providing an array of thermoplastic islands across at least a proportion of a major surface of the first layer, c) providing a second layer of a fibre reinforced polymer, preferably a thermoset FRP, d) laying the second layer over at least some of the islands, and e) securing the first and second layers together. There is also disclosed a composite which comprises a first layer of a fibre reinforced polymer and a second layer of a fibre reinforced polymer, between which is an intervening layer comprising an array of thermoplastic islands.