Sanitary Utensils and Consumer Products
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I. Landfill Degradable Multi-Element Sanitary Cutlery:
[0124]For cutlery manufacturing, 100 kg of resin additive / master batch composition was prepared. 2% polypropylene pelleted landfill degradable additive master batch (Segan Industries, Inc., Burlingame Calif.) containing a bio-attractant additive was admixed at 2% pelleted laser marking additive (antimony-tin oxide), 1.0% standard white colorant for background contrast and opacity (Clariant, West Chicago, Ill.), 4% 19C color change master batch (Segan Industries, Inc., Burlingame Calif.), and 91% injection molding grade polypropylene (PolyOne Corp.). The composition was mixed thoroughly and utilized in a 250 tom injection molding machine with a spoon / fork combination mold (36 cavity). Zone temperatures were maintained between 210-220° C. throughout the production run.
[0125]Both sanitary cutlery types were successfully tested for color appearance at 15° C. in cold ice water and were further laser marked with a high-speed 50 watt YA...
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