Polypropylene Balloon Study Open PDF Document Details Document Type Technical Report Publication Date Mar 31, 1964 Accession Number AD0439357 Entities People J. A. Macfadden Tags Communities of Interest Human Systems DTIC Thesaurus Topics Contracts Creep Creep Tests Dielectric Polymers Fabrication Films Government Procurement Governments Manufacturing Materials Materials Processing Military Research Parachutes Patent Office Peel Strength Polypropylene Procurement Production