An acoustic structure presenting a front surface and a back surface is provided. The acoustic structure includes a support layer comprising the back surface, a honeycomb core comprising a thickness defined between a back and a front, and a plurality of walls that define a plurality of honeycomb cells, wherein the plurality of honeycomb cells extend through the thickness of the honeycomb core opening out toward at least the front, and wherein the back of the honeycomb core is affixed to the support layer, a mesh layer affixed to the front of the honeycomb core, and a knit fabric layer affixed to the mesh layer and conforming to the front surface of the acoustic structure.

A method for producing elastic laminates includes gripping first and second continuous elastic films in respective gripping zones by respective first and second stretching members, transversely stretching the first and second continuous elastic films by rotating said first and second stretching members about respective first and second axes of rotation inclined with respect to each other, and releasing the transversely stretched first and second continuous elastic films from the respective first and second stretching members in respective release zones aligned along a common transverse release line.

Novel or improved microporous single or multilayer battery separator membranes, separators, batteries including such membranes or separators, methods of making such membranes, separators, and/or batteries, and/or methods of using such membranes, separators and/or batteries are provided. In accordance with at least certain embodiments, a multilayer dry process polyethylene/polypropylene/polyethylene microporous separator which is manufactured using the inventive process which includes machine direction stretching followed by transverse direction stretching and a subsequent calendaring step as a means to reduce the thickness of the multilayer microporous membrane, to reduce the percent porosity of the multilayer microporous membrane in a controlled manner and/or to improve transverse direction tensile strength. In a very particular embodiment, the inventive process produces a thin multilayer microporous membrane that is easily coated with polymeric-ceramic coatings, has excellent mechanical strength properties due to its polypropylene layer or layers and a thermal shutdown function due to its polyethylene layer or layers. The ratio of the thickness of the polypropylene and polyethylene layers in the inventive multilayer microporous membrane can be tailored to balance mechanical strength and thermal shutdown properties.

Novel or improved microporous single or multilayer battery separator membranes, separators, batteries including such membranes or separators, methods of making such membranes, separators, and/or batteries, and/or methods of using such membranes, separators and/or batteries are provided. In accordance with at least certain embodiments, a multilayer dry process polyethylene/polypropylene/polyethylene microporous separator which is manufactured using the inventive process which includes machine direction stretching followed by transverse direction stretching and a subsequent calendering step as a means to reduce the thickness of the multilayer microporous membrane, to reduce the percent porosity of the multilayer microporous membrane in a controlled manner and/or to improve transverse direction tensile strength. In a very particular embodiment, the inventive process produces a thin multilayer microporous membrane that is easily coated with polymeric-ceramic coatings, has excellent mechanical strength properties due to its polypropylene layer or layers and a thermal shutdown function due to its polyethylene layer or layers. The ratio of the thickness of the polypropylene and polyethylene layers in the inventive multilayer microporous membrane can be tailored to balance mechanical strength and thermal shutdown properties.

A method is provided for manufacturing flooring planks including a plastic base and an image plastic layer. The method includes a feeding step of feeding a layered raw material of a long decorative material to be rolled into oppositely rolling rollers; and a rolling step of hot rolling an embossing on the transparent plastic layer. A feeding tension of a printed plastic layer is adjusted according to a longitudinal deviation between the embossing and the pattern in the rolling step. The device includes a first feeding device, a second feeding device, the oppositely rolling rollers, a detecting device, and a tension controller disposed on the second feeding device. According to the long decorative material with the embossing in register with the pattern manufactured by the method, the embossing hot-rolled on the transparent plastic layer is in register with the pattern on the printed plastic layer.

The present application provides a method of fabricating a stretchable electronic device. The method includes forming an elastomer polymer layer on a base substrate; selectively stiffening the elastomer polymer layer in a plurality of defined regions of the elastomer polymer layer, thereby forming a modified elastomer polymer layer having a plurality of stiffened portions respectively in a plurality of stiffened regions spaced apart by one or more elastomeric portions in one or more elastomeric regions, the plurality of stiffened portions having a Young's modulus greater than a Young's modulus of the one or more elastomeric portions; and forming a plurality of electronic devices respectively in the plurality of stiffened regions, each of the plurality of electronic devices formed on a side of one of the plurality of stiffened portions distal to the base substrate.

A film that is excellent in easy cuttability and linear cuttability and suppressed in breakability in processing, and a roll and a pressure-sensitive adhesive tape that includes the film. The film has the tensile strength in one direction is 1.1 to 2.5 kN/m and the tensile strength in a direction orthogonal to the one direction is 3.0 to 10 kN/m, or the tensile strain at tensile strength in one direction is 50 to 150% and the tensile strain at tensile strength in a direction orthogonal to the one direction is 8 to 20%.

A laminated assembly extends in a longitudinal direction and a lateral direction orthogonal to the longitudinal direction, the assembly including a non-woven sheet and an elastic film that are laminated together, the non-woven sheet including at least one activated zone extending over the length of the non-woven sheet measured in the longitudinal direction and over a width that is strictly less than the width of the non-woven sheet measured in the lateral direction, the degree of activation of the activated zone of the non-woven sheet in the lateral direction being different from the degree of activation of the elastic film in the lateral direction, the degree of activation of the activated zone of the non-woven sheet in the lateral direction lying in the range 20% to 200%.

Examples include a device including a nanovoided polymer element having a first surface and a second surface, a first plurality of electrodes disposed on the first surface, a second plurality of electrodes disposed on the second surface, and a control circuit configured to apply an electrical potential between one or more of the first plurality of electrodes and one or more of the second plurality of electrodes to induce a physical deformation of the nanovoided polymer element.

A paint substitute film comprises a base film, a colored layer, and a hard coat layer, wherein the base film, the colored layer, and the hard coat layer are laminated in this order. The base film contains thermoplastic resin and concealing material. Refractive index of the concealing material is not less than 1.70. Scattering coefficient from wavelength 400 nm to 700 nm of the base film is not less than 0.20 μm.sup.−1. Contrast ratio of the base film when at 20% elongation is not less than 0.70.