Lightweight (Cold-Dry) Insulated Footwear.

摘要

An upper boot foam and outsole foam were developed for a non-discoloring,cold-dry,off-white combat boot. The urethane foam used is flexible down to -45F,closed-cell,and lightweight. Computerized studies were conducted to evaluate materials (polyols,isocyanates,and chain extenders) and formulations. To fabricate the boot parts,liquid-injection molding type equipment was used. Four pair of prototype footwear were fabricated. (Author)