Polyester plastic water-extended

EXTENDER. A low-graxily material used in paint, ink. plastic, and rubber formulations chiefly to reduce cost per unit volume by increasing bulk, Extenders include dialomaccou.s earth, wood flock, mineral rubber, liquid asphalt, etc. Microscopic droplets of water fixed permanently in a plastic matrix are an efficient extender tor polyester resins. In the food industry, the term refers to certain extruded proteins, especially those derived from soybeans, which are used in meat products to provide equivalent nutrient values at lower cost. Made from defatted soy flour, they are often called textured proteins. 

Uses Extender pigment offering hiding power and suspension, flow con-troi used in interior emulsions and primer paints and polyester premix plastics coagulant aid for water treatment Trade Names Hydrite 121 -S... 

Thermoplastic polymer foams can be prepared from starch-polyester graft copol zmers. Water is used as the plasticizer as well as the blowing agent (3). The foams have improved processability, surface properties, and an extended range of mechanical properties. 

Keywords Additives Aliphatic Aliphatic isocyanates Amine-isocyanate reaction Aromatic isocyanates Blocked isocyanates Chain extenders Construction (application in) Glass transition temperature Hydroxyl-isocyanate reactions Hot melt reactive PU Isocyanates MDl Moisture curing PU One-component PU Packaging (application in) Plastic and composites (application in) Polyester Polyether polyols Polyisocyanates Sealants Silane PU hybrids TDI Testing of PU adhesives testing of PU sealants Testing standards TPU thermoplastic PU Transportation (application in) Two-component PU Water-borne PU... 

Fillers. Fillers are particulate materials whose major ftmction often is simply to extend the polymer and thereby reduce the cost of the plastic compound. One of the earliest examples of a filler is the wood flour (fime sawdust) long used in phenolics and other thermosets. Calcium carbonate is used in a variety of plastics and polypropylene is often filled with talc. Even water has been used to extend polyester casting compounds. 

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