Drinking cups

Expanded polystyrene bead mol ding products account for the largest portion of the drinking cup market and are used in fabricating a variety of other products including packaging materials, iasulation board, and ice chests. The iasulation value, the moisture resistance, and physical properties are inferior to extmded boardstock, but the material cost is much less. 

The value of heat insulation is fully appreciated in the use of plastic drinking cups, plastic handles on cooking utensils, electric irons, and others where heat can cause discomfort... 

Packaging (food, medical devices, egg cartons, dairy containers, meat and produce trays, electronic devices, tools, dinnerware, picnic dishes, drinking cups, lids, etc.)... 

Thermoformed (3-D shape) plastics provide a great variety and quantities of marketable products, in a wide size range from millions of drinking cups or containers (each... 

Truck-fender liners, drinking cups, juice and dairy-product containers and lids, test-tube racks... 

All plastics. Specially recommended for oddshaped or delicate parts (e.g., drinking cups, dolls eyes). 

Vercalsteren A, Spirinckx C, Geerken T (2010) Life cycle assessment and eco-efficiency analysis of drinking cups used at public events. Int J Life Cycle Assess 15(2) 221-230... 

Unicellular foams are used for insulation, buoyancy, and flotation applications, while multicellular foams are used for upholstery, carpet backing, and laminated textiles. Expanded PS (Styrofoam), which is produced by the extrusion of PS beads containing a volatile liquid, is used to produce low-density moldings such as foamed drinking cups and insulation boards. Foamed products are also produced from PVC, LDPE, urea resins, ABS, and PU. PU foams are versatile materials, which range from hard (rigid) to soft (flexible). These are produced by the reaction of a polyol and a diisocyanate. 

In describing his voyage to northern Virginia with Sir Walter Raleigh, John Brereton wrote in 1602 that he had seen Indians wearing elaborate chains, earrings, and collars of copper, and that some of their arrow heads and skull-shaped drinking cups were made of it (44). 

Molded Objects Immersed in Liquids. Molded, non-foamed articles, such as drinking cups from rubber-modified polystyrene, are immersed... 

Moldable beads are produced by suspension polymerization, swelling with pentane, warming to soften and pre-expand the beads, pouring them into a mold, and steaming to expand them fully, soften them, and fuse them together into a finished product. This produces drinking cups, molded packaging, board stock, and display and novelty products. 

Other HDPE formulations include a high-flow HDPE that is suited to injection molding thin-wall products like food containers, drink cups,... 

Moore, S., Two-Stage Stretch (Injection) Blow Process Claims Benefits for Drink Cups, MP, Jan. 2003. 

Clear extrusion sheet grades are designed for extrusion and thermoforming applications, and like other NatureWorks PLA polymers, use conventional processing techniques and equipment. Potential uses include dairy containers, food service ware, transparent food containers, blister packs, and cold drink cups. 

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