The present invention relates to a sheet filter material, in particular having an aerosol filter function and/or a particle filter function, preferably having a protective function against chemical, biological and/or chemical harmful and toxic substances, and to a method for the production thereof. The sheet filter material is particularly suitable for producing protective equipment, protective objects, sports and leisure clothing and filters and filter materials of all types.

In an embodiment, an adhesive sheet has an expandable adhesive layer 2 on one side or both sides of a base 1, wherein the expandable adhesive layer 2 contains an epoxy resin including a polyfunctional epoxy resin, a phenol resin as a curing agent, an imidazole-based compound as a curing catalyst, and a temperature-sensitive foaming agent. The adhesive sheet has properties in good balance, such as fast curability, heat resistance, and adhesiveness, and also excellent properties such as thermal conductivity attributed to a good filling property.

In an embodiment, an adhesive sheet has an expandable adhesive layer 2 on one side or both sides of a base 1, wherein the expandable adhesive layer 2 contains an epoxy resin including a polyfunctional epoxy resin, a phenol resin as a curing agent, an imidazole-based compound as a curing catalyst, and a temperature-sensitive foaming agent. The adhesive sheet has properties in good balance, such as fast curability, heat resistance, and adhesiveness, and also excellent properties such as thermal conductivity attributed to a good filling property.

The present invention provides multi-ply creped tissue products, and in particular embodiments creped wet-pressed tissue products, having substantially higher per-ply basis weights, such as from about 14.0 grams per square meter or greater. Despite having relatively high per-ply basis weights, the products are generally soft and flexible, such as having a softness value (measured as TS7) less than about 10.0 and a Stiffness Index less than about 20.0. While being soft and flexible, the tissue products are durable enough to withstand use, such as having a geometric mean tensile (GMT) greater than about 1,000 g/3″.

The present invention provides multi-ply creped tissue products, and in particular embodiments creped wet-pressed tissue products, having substantially higher per-ply basis weights, such as from about 14.0 grams per square meter or greater. Despite having relatively high per-ply basis weights, the products are generally soft and flexible, such as having a softness value (measured as TS7) less than about 10.0 and a Stiffness Index less than about 20.0. While being soft and flexible, the tissue products are durable enough to withstand use, such as having a geometric mean tensile (GMT) greater than about 1,000 g/3″.

The present disclosure relates to assembling elastic laminates that may be used to make absorbent article components. Methods herein may include an anvil adapted to rotate about an axis of rotation, wherein first and second spreader mechanisms adjacent the anvil roll are axially and angularly displaced from each other with respect to the axis of rotation. During the assembly process, a substrate may be advanced in a machine direction onto the rotating anvil. The first spreader mechanism stretches a first elastic material in the cross direction, and the second spreader mechanism stretches a second elastic material in the cross direction. The stretched first and second elastic materials advance from the spreader mechanisms and onto the substrate on the anvil roll. The combined and elastic materials may then be ultrasonically bonded together on the anvil to form at least one elastic laminate.

A method for producing a planar composite component having a core layer (B), which is arranged between and integrally bonded to two cover layers (A, A′), wherein the cover layers contain a cover-layer thermoplastic and wherein the core layer contains a core-layer thermoplastic, comprises the following steps: a) a heated stack with layer sequence A-B-A′ is provided; b) the heated stack (A-B-A′) is pressed; c) the pressed stack is cooled, whereby the planar composite component with consolidated layers integrally bonded to each other is formed. To improve the production method including the producibility of planar 3D components, it is proposed, that at least one of the cover layers (A, A′) in unconsolidated form comprises a fibrous nonwoven layer of 10 to 100 wt.-% thermoplastic fibers of the cover-layer thermo-plastic and 0 to 90 wt.-% of reinforcing fibers having an areal weight of 300 to 3,000 g/m.sup.2; the core layer (B) in unconsolidated form comprises at least one randomly-oriented-fiber nonwoven layer (D) formed from reinforcing fibers and thermoplastic fibers of the core-layer thermoplastic,
and that after the pressing the consolidated core layer(s) has/have an air pore content of <5 vol.-% and the consolidated core layer has an air pore content of 20 to 80 vol-%.

An acoustic fiber silencer for a motor vehicle includes a first sound absorbing layer and a second sound insulating layer. The layers are formed of lightweight fibrous material, and the sound insulating layer is quilted. The acoustic fiber silencer includes a frame to which the sound absorbing and sound insulating layers are secured. The frame provides structural support and shape to the sound absorbing and sound insulating layers. The acoustic fiber silencer is lightweight while maintaining excellent noise attenuation properties.

Methods and apparatus for additive manufactures of complex parts using co-aligned continuous fibers are disclosed. Filament subunits having complex shapes are fabricated and inserted into a mold cavity. The layup is compression molded to form a complex part having high tensile strength.

A system for manufacturing a thermoplastic prepreg product includes a belt or conveyor, a prepreg applicator that positions a thermoplastic prepreg atop the belt or conveyor, a foam applicator that applies a foam mixture atop the thermoplastic prepreg, a heating mechanism that heats the thermoplastic prepreg and the foam mixture to cause the foam mixture to react atop the thermoplastic prepreg, and a laminator that is configured to press the thermoplastic prepreg and foam mixture to control a thickness of the resulting thermoplastic prepreg product. The thermoplastic prepreg includes a fabric, mat, or web of fibers and a thermoplastic material that is impregnated within the fabric, mat, or web of fibers. The thermoplastic material is formed from in situ polymerization of monomers and oligomers. The foam mixture includes an isocyanate, a polyol blend, and a blowing agent.