Squeeze moldings

Polyethylene films as packaging ma terial plastic squeeze bottles are molded from high density poly ethylene... 

This low pressure process, also known as elastic reservoir molding, consists of making basically a sandwich of plastic-impregnated open-celled flexible polyurethane foam between the face layers of fibrous reinforcements. When this plastic composite is placed in a mold and squeezed, the foam is compressed, forcing the plastic outward and into the reinforcement. The elastic foam exerts sufficient pressure to force the plastic-impregnated reinforcement into contact with the heated mold surface. Other plastics are used. 

Spray-up Popular system with reinforced plastic production. An air spray gun includes a roller cutter that chops usually glass fiber rovings to a controlled short length before being blown in a random pattern (manually or automatically) onto a surface of the mold simultaneously the gun sprays catalyzed TS polyester plastic. The chopped fibers are plastic coated as they exit the gun s nozzle. The resulting, rather fluffy, RP mass is consolidated with serrated rollers to squeeze out air and reduce or eliminate voids. A closed mold... 

Film (packaging, trash bags, household wrap, drapes, tablecloths), 59% extrusion coating, 17% injection molding (squeeze bottles, toys, kitchen utilityware), 6% wire and cable, 4% adhesives and sealants, 4% miscellaneous, 10%... 

Clay has many moods, and many small children are especially intrigued with the feel and easy versatility of clay. They like to squeeze, roll, punch, flatten, and shape it. They can impress it with designs, scratch it, hollow it out, and cut it. In liquid form, it can be poured into a mold. Many children make their first three-dimensional work of art while they are playing with clay. Often they use clay three-dimensional works of art to express emotions that they cannot express in words. 

Injection-compression molding first injects the material into a partially opened mold, and then squeezes the material by closing the mold. Injection-compression molding is used for polymer products that require a high quality surface finish, such as compact discs and other optically demanding components because it practically eliminates tangential molecular orientation. 

Polystyrene was the first synthetic polymer used for blow molding during World War II and polyethylene was the first material to be implemented in commercial applications. Until the late 1950s, the main application for blow molding was the manufacture of PE-LD articles such as squeeze bottles. Blow molding produces hollow articles that do not require a homogeneous thickness distribution. Today, PE-HD, PE-LD, PP, PET, and PVC are the most common materials used for blow molding. 

---