Polyurethanes are a good example of a traditional organic polymer system that has useful structural and mechanical properties, but is limited by its low thermo-oxidative stability. Although many varieties of this polymer are widely used in aerospace applications and home construction, they are highly combustible.
Schools in ZIP Code 57701. ZIP Code 57701 is in the Rapid City Area School District 51-4. There are 20 different elementary schools and high schools with mailing addresses in ZIP code 57701. Download a List of High Schools
Northwest Hills Zip Code. Northwest Hills is in Austinâs 78731 zip code. Built around the 1960s, homes in Northwest Austinâs Northwest Hills neighborhood are known for their open floor plans, large kitchens, Texas Hill Country views, limestone and brick houses, swimming pools (which are almost a staple) and well manicured lawns.