摘要:
Provided are abrasive articles having a plurality of elongated channels extending across its working surface and intersecting with each other. These channels provide hinge points that enhance flexibility of the article along two or more directions. Optionally, the abrasive article includes a flexible attachment layer, along with apertures that penetrate through the attachment layer located at the intersection points of the channels. The enhanced flexibility allows the abrasive article to easily access recessed areas of the workpiece and facilitates applying even pressure across convex and concave surfaces. The channels assist in segregating dust particles from the abrading operation, and the optional apertures can be advantageously connected to a vacuum source for evacuation of the dust particles from the channels.
摘要:
Provided are abrasive articles having a plurality of elongated channels extending across its working surface and intersecting with each other. These channels provide hinge points that enhance flexibility of the article along two or more directions. Optionally, the abrasive article includes a flexible attachment layer, along with apertures that penetrate through the attachment layer located at the intersection points of the channels. The enhanced flexibility allows the abrasive article to easily access recessed areas of the workpiece and facilitates applying even pressure across convex and concave surfaces. The channels assist in segregating dust particles from the abrading operation, and the optional apertures can be advantageously connected to a vacuum source for evacuation of the dust particles from the channels.
摘要:
Methods for imparting an image to a painted exterior surface on a motor vehicle and kits for use in such methods are described. The methods include applying a mask to an outer clearcoat layer of the painted exterior surface, the mask having a masked portion that covers part of the clearcoat layer and an open portion that leaves part of the clear coat layer exposed, the masked and open portions cooperating to define the image, abrading the exposed part of the clearcoat layer to provide it with a matte finish, and removing the mask to reveal an image having a matte finish region and an unabraded region. The clearcoat layer in the matte finish region of the image is capable of being provided with a surface gloss appearance that is consistent with the surface gloss appearance of the clearcoat layer in the unabraded region of the image and without painting the surface of the motor vehicle. The kits comprise a mask that is adapted to be removably attached to the outer clearcoat layer and an abrasive that is capable of removing a portion of the outer clearcoat layer to generate an image having a matte finish region and an unabraded region, and one or more materials that may be used to provide the outer clearcoat layer in the matte finish region of the image with a surface gloss appearance that is consistent with the surface gloss appearance of the clearcoat layer in the unabraded region of the image.
摘要:
A microstructured antimicrobial film, an antimicrobial film assembly, a method of protecting a surface from microbial contamination, and a method of making a microstructured antimicrobial film. The microstructured antimicrobial film can include a substrate having a first side that includes a first major surface, a plurality of microstructured wells defined in the first side of the substrate, and an antimicrobial material positioned within at least some of the plurality of wells. Each of the plurality of wells can be at least partially defined by a base that is spaced a distance from the first major surface of the substrate. The antimicrobial material can be positioned, such that an upper surface of the antimicrobial material is spaced a distance from the first major surface of the substrate. The antimicrobial film assembly can include a roll or a stack of microstructured antimicrobial films.
摘要:
A method of introducing discontinuities to an adhesive coated region of a substrate is provided and the resultant article. The method includes the steps of (a) providing a web having upper and lower edges; (b) excising a portion of the web creating open sections interposed between retained sections connected to carrier sections, each including the upper or lower edge of the web to yield a patterned web; (c) perforating the patterned web such that the perforations span from one open section to the next open section to yield a perforated web; (d) contacting the perforated web to the adhesive coated region of the substrate; and (e) removing the carrier sections at the perforations leaving the retained sections on the substrate
摘要:
The invention provides abrasion resistant electrodes that comprise metal-coated conductive valleys between protrusions having a fractured metal coating thereon; electrical devices made from a plurality of said electrodes; and methods of making said devices.
摘要:
Described are hydrophilic fibrillated articles that include melt-processable polymer and hydrophilic component such as hydrophilic surfactant or hydrophilic polymer, as well as methods of preparing such articles.
摘要:
The invention provides abrasion resistant electrodes that comprise metal-coated conductive valleys between protrusions having a fractured metal coating thereon; the fractured metal coated protrusions are non-conductive. Electrical devices made from a plurality of said electrodes; and methods of making said devices.
摘要:
A warning system for alerting a person to an emergency situation which includes a transmitter responsive to a visual or acoustic alerting system for transmitting an alarm signal on an RF carrier and a control signal on a sideband of the carrier. A tuneable receiver for receiving commercial broadcasts in a normal operating mode transfers to an emergency mode upon detection of the control signal and converts the alarm signal to an acoustic signal. In one embodiment, the visual or acoustic alerting system is a siren and light system of an emergency vehicle. In this embodiment, a transceiver is preferably included for dedicated communications among emergency vehicles. The range of both the transmitter and transceiver complement and are substantially the same as the effective range of the visual or acoustic alerting system.
摘要:
An adhesive blend includes a pressure sensitive adhesive and non-tacky microspheres that function as a detackifier. The non-tacky microspheres are solid, elastomeric, non-crushable, and solvent insoluble. The non-tacky microspheres are a reaction product of at alkyl (meth)acrylate monomers having from 1 to 14 carbon atoms, multifunctional (meth)acrylate and or multifunctional vinyl crosslinker, initiator, and polymeric stabilizer. The blend can be coated onto a sheet to form a pad, such as an easel pad.