Abstract:
A container comprises a wall and a bottom. The wail includes a thermoplastic poiymer materiai, and forms a cylindrical shape. The thermoplastic poiymer materiai has a microslructure that includes a plurality of closed ceils, each cell containing a void and each cell having a maximum dimension extending across the void within the ceil that ranges between 1 micrometer and 200 micrometers Song. The bottom is joined to an end of the cylindrical shape to close the end such that the beverage and/or other items disposed inside the cylindrical shape don't escape through the end of the shape.
Abstract:
A thermoplastic material having a thickness includes a polymer having a microstructure that includes a plurality of closed cells disposed in an inner region of the material's thickness. Each of the plurality of closed cells contains a void and each of the cells has a maximum dimension extending across the void within the cell that ranges between 1 micrometer and 500 micrometers long. The thermoplastic material also includes a substantially solid skin disposed in an outer region of the material's thickness. The skin includes a surface having a surface energy and a texture that increases the surface energy to more than 38 dynes per square centimeter.
Abstract:
An apparatus (un-interleaver) for unwinding a roll of material interleaved with another material, and for separating the materials, includes a first platform, a second platform, a tension-sensor, an edge-sensor, and a controller. The controller monitors signals generated by the tension-sensor and the edge-sensor, and in response to the signals: a) causes the speed at which the second platform rotates to change to maintain a predetermined tension in the second material as the second material travels from the first platform toward the second platform, and b) causes the second platform to move relative to the first platform to align the edge of the second material traveling toward the roll of second material with the edge of the second material in the roll.
Abstract:
A container comprises a wall and a bottom. The wail includes a thermoplastic poiymer materiai, and forms a cylindrical shape. The thermoplastic poiymer materiai has a microslructure that includes a plurality of closed ceils, each cell containing a void and each cell having a maximum dimension extending across the void within the ceil that ranges between 1 micrometer and 200 micrometers Song. The bottom is joined to an end of the cylindrical shape to close the end such that the beverage and/or other items disposed inside the cylindrical shape don't escape through the end of the shape.
Abstract:
A solution is proposed for forming a thermoplastic material (116) into a desired shape. A corresponding method comprises increasing the thermoplastic material's degree of crystallinity by infusing the thermoplastic material (116) with a gas for a period, wherein the thermoplastic material (116) includes a core (304) and a surface layer (306a, 306b) adjacent the core (304), and has a threshold degree of crystallinity above which bubbles will not nucleate when the gas-infused thermoplastic material is heated to its glass-transition-temperature, and wherein the increase in the material's degree of crystallinity includes the surface layer's degree of crystallinity being greater than the core's degree of crystallinity, and less than the thermoplastic material's threshold degree of crystallinity; allowing, for a period, gas infused into the thermoplastic material (116) to migrate out of the material (116); nucleating bubbles in the gas-infused thermoplastic material (116) by causing the gas-infused thermoplastic material (116) to reach a temperature that is at least the glass-transition-temperature of the gas-infused thermoplastic material (116); holding, for a period, the temperature that is at least the glass-transition-temperature of the gas-infused thermoplastic material (116) to allow the bubbles to grow in size; reducing the temperature of the gas-infused thermoplastic material (116) to stop the bubbles from growing in size; and thermoforming the thermoplastic material (116) into a shape.
Abstract:
A solid state foaming process permits the use of up to 100 % recycled pre- a nd post-consumer polymer for the manufacture of foamed polymer material and thermoformed foamed polymer articles. The process enables the optional formation of integral unfoamed skins of controllable depth and crystallinity on foamed polymeric materails suitable for a wide variety of applications. Because this process does not alter the underlying chemistry of the material all scrap from the manufacturing process may be reused without additive to form new foamed polymeric materials and articles.
Abstract:
A container comprises a wall and a bottom. The wail includes a thermoplastic poiymer materiai, and forms a cylindrical shape. The thermoplastic poiymer materiai has a microslructure that includes a plurality of closed ceils, each cell containing a void and each cell having a maximum dimension extending across the void within the ceil that ranges between 1 micrometer and 200 micrometers Song. The bottom is joined to an end of the cylindrical shape to close the end such that the beverage and/or other items disposed inside the cylindrical shape don't escape through the end of the shape.
Abstract:
A method for joining two components includes positioning a thermoplastic polymer portion of a first component adjacent a thermoplastic polymer portion of a second component such that the first and second portions form an interface. At least one of the portions includes a microstructure having a plurality of closed cells, each cell containing a void and each cell having a maximum dimension extending across the void. The method also includes exerting pressure on the thermoplastic polymer portions to form a bond at the interface that holds the portions together. The plurality of closed cells, and especially those adjacent the surface of the thermoplastic polymer portion that form the interface, help isolate thermally and/or chemically the surface from the remainder of the portion.