摘要:
A low fringing film coating includes a transparent polymeric layer having a surface, and a plurality of projections extending away from the surface. The projections have a mean height of 0.05 to 1 μm and a mean distance between projections of 0.5 to 2 mm. The coating can be produced by coating a polymeric composition onto a substrate. The polymeric composition includes a polymeric material, a good solvent for the polymeric material and a poor solvent or the polymeric material. The solvents are at least partially evaporated to form a low fringing transparent polymeric layer.
摘要:
A system and a method for providing a film having a matte finish. The system includes means for providing a coated substrate, the coated substrate comprising a first coatable material applied to a substrate, the coatable material forming a first major surface of the coated substrate; means for changing the viscosity of the first coatable material from a first viscosity to a second viscosity; a face-side roller having an outer surface positioned to contact the first major surface of the coated substrate to impart a matte finish thereon; and optionally, means for hardening the first coatable material. The method of the invention includes the steps of (1) providing a coated substrate comprising a coatable material disposed on a substrate, the coatable material providing a first major surface of the coated substrate; (2) changing the viscosity of the coatable material from the initial viscosity to a second viscosity; (3) contacting the first major surface of the coated substrate with at least one face-side roller to impart a matte finish; and (4) optionally, hardening the coatable material to provide the film.
摘要:
A low fringing film coating includes a transparent polymeric layer having a surface, and a plurality of projections extending away from the surface. The projections have a mean height of 0.05 to 1 μm and a mean distance between projections of 0.5 to 2 mm. The coating can be produced by coating a polymeric composition onto a substrate. The polymeric composition includes a polymeric material, a good solvent for the polymeric material and a poor solvent or the polymeric material. The solvents are at least partially evaporated to form a low fringing transparent polymeric layer.
摘要:
Described are methods and products prepared from the methods, each of which include methods of coating certain materials onto a substrate, including coating a coating material and an edge material onto the substrate in a manner which may provide an improved thickness profile of the overall coating, and that may do so by using the edge material to augment the thickness of the coating material edge, or that may do so by improving the coating material edge by using the edge material to affect the shape of the coating material edge, the products being useful, for example, in electrochemical cells.
摘要:
A method for reducing coating defects caused by strikethrough when simultaneously slide coating a first fluid layer, a second fluid layer, and a third fluid layer. The method includes preparing the first, second, and third fluids such that the first solute is incompatible with the second and third solutes and such that the first fluid minimizes strikethrough of at least one of the second and third fluids to a slide surface when the first fluid is positioned between the slide surface and the second and third fluids. The present invention is useful in preparing imaging, data storage, and other media.
摘要:
A method for reducing coating defects caused by strikethrough when simultaneously slide coating a first fluid layer, a second fluid layer, and a third fluid layer. The method includes preparing the first, second, and third fluids such that the first solute is incompatible with the second and third solutes and such that the first fluid minimizes strikethrough of at least one of the second and third fluids to a slide surface when the first fluid is positioned between the slide surface and the second and third fluids. The present invention is useful in preparing imaging, data storage, and other media.
摘要:
A method for use with a slide coater including preparing a first coating fluid and flowing the first coating fluid down at least a first slide surface of a slide coater when coating of the first coating fluid onto the substrate is desired and flowing a minimizing fluid down the at least first slide surface when coating of the first coating fluid onto the substrate is not desired. The minimizing fluid has a composition which minimizes drying of the first coating fluid on the at least first slide surface. This invention applies to imaging, data storage, and other media.
摘要:
A method of depositing a magnetic recording media coating onto a substrate, wherein the coating is substantially free of Benard Cells, the method comprising the steps of: (a) providing a dispersion comprising a polymeric binder, a pigment, and a solvent; (b) coating the dispersion onto a surface of the substrate; (c) drying the dispersion; (d) calculating values comprising .mu., .beta., and d representing the viscosity, temperature gradient, and wet caliper of the dispersion, respectively; and (e) during the course of carrying out steps (a), (b), and (c), maintaining the ratio ##EQU1## below a threshold value sufficient to substantially prevent the formation of Benard Cells in the magnetic recording media coating.
摘要:
An optical film having a structured surface is described. At least 90% of the structured surface has a slope magnitude that is less than about 5 degrees. The optical film may have an optical haze of less than about 10% and an optical clarity of less than about 50%, or may have an optical haze of less than about 7.5% and an optical clarity of less than about 60%, or may have an optical haze of less than about 3% and an optical clarity of less than about 65%.
摘要:
A method of controlling a slot die comprises positioning actuators of the slot die with a controller according to a first set of discrete settings, operating the slot die by passing an extrudate through the fluid flow path and out the applicator slot with the actuators positioned according to the first set of discrete settings, and while passing the extrudate through the fluid flow path and out the applicator slot, changing the positions of the actuators with the controller to create patterned features in the extrudate.