Abstract: A pressure sensitive adhesive surface that does not adhere to the adherend and can be positioned by sliding it under low pressure, while it can exert a sufficient adhesive force under a pressure above a certain level. The adhesive sheet includes an adhesive layer with a fine structure on a surface thereof. The fine structure includes a plurality of cone or frustum structures, with the cones or frustums having two or more parts joined to each other via an interface. A first part is present on a top of the cones or frustums and is formed from a non-adhesive or a weak adhesive material, and a second part is present below the first part and is formed from a strong adhesive material.

Abstract: A shaped abrasive agglomerate particle includes a shaped abrasive particle bonded in a siliceous matrix. The siliceous matrix comprises a reaction product of an alkali silicate and a hardener. The abrasive agglomerate particles are useful in abrasive articles. Methods of making the shaped abrasive agglomerate particle and abrading a workpiece are also described.

Abstract: There is provided a welding helmet (1) comprising a face protection member (3) moveable between a lowered position in which the face protection member (3) covers a wearer's face, and an upraised position, in which the face protection member (3) uncovers the wearer's face, a headband suspension system (9) for fixing the face protection member (3) to a wearer's head, a protective cap (17) comprising a flexible outer layer (19) and at least one compressible inner liner (21).

Abstract: Various embodiments of a respirator that includes a harness, a mask body, and an exhalation valve are disclosed. The exhalation valve can include a valve seat and a flexible flap that is in engagement with the valve seat. The flexible flap can have one or more materials that can cause the flap to flash when moving from a closed position to an open position or vice versa. The flashing valve can make it easier for a user to ascertain whether the valve is operating properly.

Abstract: An optical ferrule has a different thermal expansion coefficient than a substrate to which a optical device is mounted, the ferrule optically coupling the device to one or more optical fibers. The optical ferrule includes and/or a cradle in which the ferrule is mounted include lateral and longitudinal engagement feature that ensure alignment with the optical device at an operating temperature, the ferrule expanding relative to the substrate when transitioning to the operating temperature.

Abstract: The disclosed patterned wavelength-selective material and process for making the patterned wavelength-selective material uses patterned applied adhesive and a structurally weak wavelength-selective material that includes portions that contact the adhesive and break to remain in contact with the adhesive. In one embodiment, the wavelength-selective material comprises an array of sections with cuts at least partially through a wavelength-selective film at each section secured to the adhesive. In another embodiment, the wavelength-selective film comprises a transfer stack of layers.

Abstract: Optical bodies are described. In particular, optical bodies having a birefringent multilayer optical film and a continuous adhesive layer with a thickness less than 20 micrometers are described. Optical bodies described herein exhibit reduced occurrence and severity of a non-uniformity defect known as “orange peel.

Abstract: An integral multilayer optical construction includes opposing first and second structured major surfaces having two-dimensional arrays of respective first and second structures. An optical diffuser is embedded within the optical construction between the first and second structured major surfaces. The optical diffuser has an optical haze of greater than about 5% for at least one visible wavelength in a visible wavelength range extending from about 420 nm to 680 nm. When the optical construction is disposed on a light source with one of the first and second structured major surfaces facing the light source, light emitted by the light source is transmitted by the optical construction with a cross-section of an angular luminous distribution of the transmitted light in at least one first plane that includes a normal to the optical construction, including first and second intensity peaks at respective first and second angles on opposite sides of the normal.

Abstract: A filter according to an embodiment include a filter main body provided with a sheet member, and a border portion of the filter main body includes a first region bent at least one time, and a second region formed in a flat shape and provided to be bendable and to provide softness to the filter main body.

Abstract: A transfer article with a thickness of less than 3 micrometers includes a first acrylate layer that is releasable from a metal or doped semiconductor release layer at a release value of from 2 to 50 grams/inch. The article includes a functional layer overlaying the first acrylate layer. The functional layer includes at least one microfractured inorganic layer about 3 nanometers to about 200 nanometers thick, which has a plurality of toolmarks interspersed with cracks.

Abstract: An optical system includes a light source, an optical film curved about a first axis, and a light control film curved about the first axis and disposed between the light source and the optical film. The optical film includes a microstructured first major surface and an opposing second major surface. The microstructured first major surface defines a linear Fresnel lens including a plurality of Fresnel elements extending longitudinally along the first axis. The first major surface of the optical film faces the light control film. The light control film includes a plurality of alternating optically transmissive and optically absorptive regions extending longitudinally along the first axis such that in a cross-section orthogonal to the first axis, for at least a majority of the optically transmissive regions, a centerline between adjacent optically absorptive regions is substantially normal to a major surface of the light control film.

Abstract: The present disclosure relates to a method of fabricating a thermoelectric device. The method includes disposing a metal layer on a dielectric layer to form a sub-assembly, forming patterned circuits on the metal layer, forming blind vias in the dielectric layer, fabricating first thermoelectric elements in a first series of blind vias, and fabricating second thermoelectric elements in a second series of blind vias to form thermoelectric units with the first thermoelectric elements and the patterned circuits. The sub-assembly is configured to be joined to an adjacent sub-assembly along a first direction, and the first and second thermoelectric elements of each thermoelectric unit are aligned in a second direction substantially perpendicular to the first direction. The present disclosure further relates to a thermoelectric device which includes a plurality of thermoelectric units forming a strip extending in a first direction.

Abstract: A film includes a polymeric material and a plurality of particles dispersed therein. The polymeric material includes a plurality of elongate polymeric elements oriented along substantially a same first direction and interconnecting the particles. An elongate end portion of at least a first elongate polymeric element in the plurality of elongate polymeric elements conforms and is bonded to a first particle in the plurality of particles along an entire length of the elongate end portion. An elongate mid portion of at least a second elongate polymeric element in the plurality of elongate polymeric elements conforms and is bonded to a second particle in the plurality of particles along an entire length of the elongate mid portion with the second elongate polymeric element extending away from the second particle from opposite ends of the elongate mid portion. Multilayer films and processes are also described.

Abstract: An immersion cooling system includes a plurality of spaced-apart cooling plates defining a plurality of subvolumes therebetween, the cooling plates at least partially immersed in a first liquid coolant, so that the first liquid coolant at least partially fills each subvolume; a second liquid coolant flowing through at least a portion of each cooling plate; and at least one electronic device at least partially immersed in the first liquid coolant within each subvolume.

Abstract: A method of making an optical film for control of light includes positioning a first mixture on a substrate, wherein the first mixture includes a first plurality of magnetizable particles dispersed in a first resin, assembling the first plurality of magnetizable particles into a desired structure for the control of the light by rotating modulation of at least a first magnetic field relative to the first plurality of magnetizable particles, and vitrifying the first resin while the first plurality of magnetizable particles are in the desired structure.

Abstract: Multilayer optical film comprising at least a plurality of alternating first and second optical layers. Embodiments of the multilayer optical film are useful, for example, in UV-C shield, UV-C light collimator, and UV-C light concentrator applications.

Abstract: An inkjet printing method forming a decorative printed layer having a three-dimensional texture on a printing surface is described. The inkjet printing method includes: printing dots of curable ink that cure under a predetermined condition based on dot pattern data indicative of printed positions of the dots to be printed on the printing surface; and curing the printed dots. The dot pattern data indicates that: a distance between the adjacent dots becomes a distance where the adjacent dots before the curing are allowed to be maintained independently without bonding to one another in a first region; and the distance between the adjacent dots becomes a distance where the adjacent dots before the curing bond to one another in a second region different from the first region. Such a method may allow forming a decorative printed layer having a three-dimensional texture with a desired gloss level.