Abstract: Shipping containers that are convertible to display containers are disclosed. The containers comprise wrap around outer shells of the general type known as “Bliss” wraps, in combination with interior vertical support structures. The invention presents improved two- and three-piece container constructions, having improved side-to-end panel connections for improved tray strength upon conversion to a display configuration, as well as a variety of interior divider/support options. By advantageous adhesive application together with specialized opening structures such as tear strips, lines of weakness and/or hand holes, various different conversion configurations are provided.

Abstract: A method of modifying a polyethylene material is accomplished by providing a polyethylene resin. The initial rheological breadth of the polyethylene resin is determined. The resin is then modified to adjust the rheological breadth of the polyethylene from the initial rheological breadth to a different rheological breadth that corresponds to a desired resin property, such as haze. A method for predicting clarity and rheological breadth properties is also provided, which utilizes a template of measured properties for polyethylene resins.

Abstract: A method is provided for casting a film of syndiotactic propylene polymer (sPP) at a film line speed of from about 35 to about 200 feet per minute. The sPP provided may include a peak melt temperature of from about 120 to about 140 degrees Celsius. A processing aid may be added to the sPP prior to casting the sPP film. The casting temperature of the method provided may be maintained at less than about 430 degrees Fahrenheit. The method provided includes a cast roll that forms the sPP film and that may be maintained at a temperature of from about 50 to about 130 degrees Fahrenheit. The coefficient of friction of the sPP film provided may be less than about 1.0. The maximum tensile strength of the sPP film provided may be at least about 4,200 pounds per square inch.

Abstract: A shipping container for facilitating the conversion of the shipping container into a dispensing or all-around display container from formed an outer blank (10) having a centrally positioned bottom wall (12), front and rear walls (18, 26), top panels (32, 38), side flaps (14, 16, 22, 24, 28, 30, 34, 36, 40, 42) and an interior divider structure (50) for structural stacking support both during shipping and display modes.

Abstract: High density polyethylene barrier grade films comprising at least one layer of polymer wherein the polymer comprises a density greater than about 0.955 g/cc and a rheological breadth parameter of greater than about 0.22 are disclosed. Methods for producing such films on a film line with a neck height configuration of greater than about 15 inches are disclosed.

Abstract: Disclosed is a method of modifying polyethylene to increase its ability to resist the transmission of water vapor. The polyethylene is modified to increase long chain branching resulting in lower water vapor transmission rates in films prepared with the modified polyethylene. The polyethylene can be modified using peroxides, air and even by admixture with high long chain branching content polyethylene. The polyethylene, particularly when in the form of films, can be used for preparing packaging where sorption of flavor, aroma, or colorant compounds must be minimized.

Abstract: A method of modifying a polyethylene material is accomplished by providing a polyethylene resin. The initial rheological breadth of the polyethylene resin is determined. The resin is then modified to adjust the rheological breadth of the polyethylene from the initial rheological breadth to a different rheological breadth that corresponds to a desired resin property, such as haze. A method for predicting clarity and rheological breadth properties is also provided, which utilizes a template of measured properties for polyethylene resins.

Abstract: An improved method of manufacturing blown polyolefin films with increased bubble stability and higher blown film production rates is disclosed. A method in which the amounts and ratios of known antioxidant polymer film additives (phosphites and phenolics) are controlled to provide limited long chain branching (LCB) and greater rheological breadth in a polyethylene melt to improve both processing characteristics and mechanical properties in the resulting film.

Abstract: High density polyethylene (HDPE) comprising narrow rheological breadth and narrow molecular weight distribution, and methods for producing such HDPE polymer are disclosed. HDPE blown resins and films produced from the HDPE of the invention, and methods of producing such resins and films are also disclosed. The novel HDPE-derived resins of the invention possess exceptional clarity and gloss in comparison to conventional HDPE-derived resin.

Abstract: High density polyethylene barrier grade films comprising at least one layer of polymer wherein the polymer comprises a density greater than about 0.955 g/cc and a rheological breadth parameter of greater than about 0.22 are disclosed. Methods for producing such films on a film line with a neck height configuration of greater than about 15 inches are disclosed.