Abstract: The invention relates to a process for producing polypropylene bottles comprising, forming a polypropylene preform by injection molding, cooling the polypropylene preform to ambient temperature, preheating the preform article, wherein the temperature around the circumference of the preform article has a temperature delta of less than 5 degrees Celsius at any height along the preform, inserting the preheated preform into a cavity of a stretch blow molding machine, and stretch blow molding the preform into a polypropylene bottle at a rate of at least 1000 bottles per cavity per hour, wherein the polypropylene bottle has a wall thickness delta at any given height along the bottle of less than 30% of the average wall thickness at the given height. The invention also relates to the polypropylene bottle made from this process.

Abstract: Chemical additives disclosed for reducing “plate-out” which have applications in polymers, such as polyolefins. It is possible to provide for a composition and a process for producing parts, sheet and film from polyolefin extrusion applications wherein the polyolefins are processed with a minimal quantity of “plate-out.” A polyolefin composition may contain a sorbitol-based clarifying system of a derivative of Dibenzylidene, along with one or more co-additives to achieve a reduction in undesirable plate-out.