Abstract: A magnetizable abrasive particle comprises a ceramic body having an outer surface and a magnetizable layer disposed on a portion, but not the entirety, of the outer surface. The ceramic body comprises a platelet having two opposed major facets connected to each other by a plurality of side facets. The magnetizable layer completely covers one of the two opposed major facets, and the magnetizable layer has a magnetic dipole oriented perpendicular or parallel to the facet which it completely covers. A plurality of the magnetizable abrasive particles, and abrasive articles including them are also disclosed. Methods of making the foregoing are also disclosed.

Abstract: The present disclosure provides methods of making a vitreous bond abrasive article and a metal bond abrasive article. An abrasive article preform is produced by an additive manufacturing sub-process comprising the deposition of a layer of loose powder particles in a confined region and selective heating via conduction or irradiation to heat treat an area of the layer of loose powder particles. The loose powder particles include abrasive particles and organic compound particles, as well as vitreous bond precursor particles or metal particles. The abrasive article preform produced by additive manufacturing is subsequently heated to provide the vitreous bond abrasive article comprising the abrasive particles retained in a vitreous bond material, or to provide the metal bond abrasive article. Also, the methods include receiving, by an additive manufacturing device having a processor, a digital object specifying data for an abrasive article, and generating the abrasive article with the manufacturing device.

Abstract: In one aspect, the present disclosure provides a device. The device includes a body comprising a waterproof base, a waterproof coversheet attached to the base, and a channel disposed between the base and the coversheet. The channel has a perimeter and an opening that provides liquid access to the channel. A portion of the perimeter is defined by a waterproof seal. A dry first oxygen-scavenging reagent and an indicator reagent for detecting sulfate reduction by a sulfate-reducing bacterium are disposed in the device between the base and the coversheet. The waterproof base comprises a plurality of open microcompartment structures facing the coversheet.

Abstract: The present disclosure provides methods of making a vitreous bond abrasive article and a metal bond abrasive article. The methods include sequential steps. Step a) includes a subprocess including sequentially: i) depositing a layer of loose powder particles in a confined region; and ii) selectively applying heat via conduction or irradiation, to heat treat an area of the layer of loose powder particles. The loose powder particles include abrasive particles and organic compound particles, as well as vitreous bond precursor particles or metal particles. The layer of loose powder particles has substantially uniform thickness. Step b) includes independently carrying out step a) a number of times to generate an abrasive article preform comprising the bonded powder particles and remaining loose powder particles. Step c) includes separating remaining loose powder particles from the abrasive article preform.

Abstract: Described herein is a process for making PTFE having a standard specific gravity of less than 2.160 g/cm3 comprising: polymerizing a tetrafluoroethylene monomer in an aqueous medium comprising an emulsifier and an initiator in a reaction vessel and contacting the aqueous medium with a fluorinated polyether. Also described herein are the polymerizable compositions and articles thereof.

Abstract: A method of building up a dental object includes steps of (i) determining the three-dimensional shape of the object; (ii) mixing at least a first and a second component to form a hardenable composition; (iii) depositing the hardenable composition through a nozzle; (iv) performing steps (ii) and (iii) in combination with moving the nozzle by computer control based on said data. The invention helps providing an object like a dental restoration at maximized geometric and optical quality.

Abstract: Thin multilayer reflectors are described. In particular, thin multilayer reflectors that partially transmit blue light and reflect green and red light are described. The thin multilayer reflectors have a uniform left bandedge across each dimension of the film, wherein the location of the left bandedge varies in a range of no more than 10% of the average left bandedge across that dimension.

Abstract: A device for monitoring the effectiveness of a decontamination process, the device including a bacteria cell as the indicator test organism and optionally a substrate, where the indicator test organism may include a Mycobacteria terrae cell, and methods of using the monitoring device to evaluate the efficacy of a decontamination process.

Abstract: In one embodiment, a film is described comprising a mixture of semicrystalline polylactic acid polymer; polyvinyl acetate polymer having a glass transition temperature (Tg) midpoint as measured by differential scanning calorimetry of at least 25° C.; and plasticizer; wherein the film is oriented. In another embodiment, a film is described comprising a mixture comprising semicrystalline polylactic acid polymer, polymer having a midpoint Tg as measured by differential scanning calorimetry of at least 25° C., and plasticizer; wherein the mixture exhibits a single midpoint Tg and the single midpoint Tg ranges from 40° C. to 65° C.; and wherein the film is oriented and the oriented film exhibits a higher midpoint Tg ranging from 40° C. to 65° C. and a lower midpoint Tg ranging from 5 to 25° C.

Abstract: Post-steam sterilization wet pack indicators are described. The indicators generally comprise a moisture-impermeable layer having a first surface and a moisture-indicating layer comprising a reversible colorimetric steam-sterilization-compatible moisture-indicating medium. The moisture-indicating layer is disposed on or near the first surface of the moisture-impermeable layer. The area of the moisture-indicating layer is dimensionally smaller than the moisture-impermeable layer such that the edges of the moisture-impermeable layer extend beyond the edges of the moisture-indicating layer. Articles and packages comprising wet pack indicators are also described.

Abstract: A temperature-sensing apparatus for sensing the temperature of an electrical conductor (31), comprising a sensor frame (210) including a frame body (2101) and a channel (2102) adapted to accommodate the electrical conductor (31). At least a portion of a temperature sensor is received in a chamber (2103) of the sensor frame (210). At least a portion of a thermal contact member is disposed between the electrical conductor (31) and the temperature sensor and configured to enhance thermal-contact therebetween. At least a portion of the thermal contact member is radially pressable against the electrical conductor (31).

Abstract: A method of making an infrared-reflecting optically transparent assembly comprises: coating a curable composition onto a major surface of an optically transparent thermoplastic polymer film; at least partially curing the curable composition, which may be optionally at least partially dried, to provide a thermoformable composite film; and laminating the thermoformable composite film to an infrared-reflecting multilayer optical film to provide the infrared-reflecting optically transparent assembly. The curable composition comprises urethane (meth)acrylate compound, (meth)acrylate monomer, and silicone (meth)acrylate. The infrared-reflecting optically transparent assembly and methods of including it in an infrared-reflecting lens assembly are also disclosed.

Abstract: A thin film culture device for enumerating mold colonies is provided. The device comprises water-resistant first and second substrates with a growth region disposed therebetween, a dry, cold water-soluble gelling agent disposed in the growth region, and an effective amount of a calcium-chelating compound disposed in the growth region. The effective amount of calcium-chelating compound is capable of reducing a rate of lateral enlargement of the colony-forming unit growing in the culture device relative to the rate of lateral enlargement of a colony of the same mold species growing in an otherwise identical culture device that does not contain the effective amount disposed in the growth region, wherein reducing the rate of lateral enlargement of the colony-forming unit does not substantially delay detection of the colony. A corresponding method is also provided.

Abstract: The present disclosure relates to improved packaging materials and/or constructions, and methods of making and using them.

Abstract: A fall-protection apparatus with a friction-braking system comprising a handle that is disconnectably connected to a braking cam so that when the handle is moved from a braking position to a non-braking position the braking cam is pivotally moved from a braking configuration to a non-braking configuration, and so that when the handle is moved to a disconnecting position the connection between the handle and the braking cam is disconnected.

Abstract: Multi-mode displays are described. In particular, multi-mode displays having an emissive display element, a partial reflector disposed on the emissive display element, a spatial light modulator disposed on the partial reflector, and an absorbing polarizer disposed on the spatial light modulator are described. Multi-mode displays having at least reflective display modes and emissive display modes are described. The display is configured such that switching between these modes happens quickly or even automatically.

Abstract: A plated article is provided comprising a) a polymeric substrate bearing b) a tie/seed layer in direct contact with the polymeric substrate and c) a plated metal layer, wherein the tie/seed layer has a thickness of less than 0.95 ?m, and wherein the tie/seed layer comprises two or more layers of tin alternating with two or more layers of copper, and in some embodiments up to ten or more layers of tin alternating with ten or more layers of copper. In some embodiments, the tie/seed layer includes a layer of tin in direct contact with the polymeric substrate. Typically, the layers of tin and copper comprising the tie/seed layer are sputter coated layers. In some embodiments, the plated metal layer comprises an alloy of copper and tin. In some embodiments, the plated metal layer comprises layers comprised of tin alternating with layers comprised of copper.

Abstract: An aesthetic, stain resistant ligature with material properties suited for prolonged maintenance of sliding mechanics. The orthodontic ligatures of the present disclosure offer a practitioner the ability to tailor the level of tension applied by the ligature without fear of disengagement or deterioration over time.

Abstract: A scouring article include a three-dimensional non-woven web of fibers bonded to one another to form a lofty, non-woven substrate. An abrasive coating is coated on the substrate. The abrasive coating includes a binder; a first plurality of abrasive particles and a second plurality of abrasive particles dispersed in the binder. The first plurality of inorganic abrasive particles has a Mohs' hardness of 7 greater and a median particle size in the range of 20 microns to 100 microns. The second plurality of organic abrasive particles has a Mobs' hardness in the range of 1 to 5 and a median particle size greater than 100 microns. The average surface roughness created by use of the scouring article, according to the surface roughness test, is less than 8 microns.