Accession Number : AD0665881

Title :   EVALUATION OF POTENTIAL BALLOON MATERIALS: SURVEY OF CURRENTLY AVAILABLE PLASTIC FILMS,

Corporate Author : LITTON SYSTEMS INC ST PAUL MINN APPLIED SCIENCE DIV

Personal Author(s) : Parsons,W. B.

Report Date : 09 MAR 1964

Pagination or Media Count : 96

Abstract : In a survey of currently available plastic films (supported and unsupported) for potential balloon use, 419 firms were contacted, of which 156 responded. Of these responses, 118 must be classified as negative, while 15 are classified 'miscellaneous'--which for practical purposes is negative. Eleven firms made no special effort other than forwarding either samples or sales literature. Twelve firms made some effort that involved some combination of submitting samples or literature and returning the questionnaire (only three of these made a substantial attack on the questionnaire). So far as can be determined, only one firm performed any actual testing in order to supply data not already in their possession, which were requested by the questionnaire. Data are presented herein on 18 materials--two not suggested by the survey--the products of 12 companies. Of these, 11 materials are commercial items, one appears en route to this status, and six will probably not advance beyond the experimental stage unless a use is found for them. (Author)

Descriptors :   (*BALLOONS, MATERIALS), (*POLYETHYLENE PLASTICS, BALLOONS), FILMS, MODULUS OF ELASTICITY, POLYESTER PLASTICS, TENSILE PROPERTIES, LAMINATED PLASTICS, PHYSICAL PROPERTIES, FEASIBILITY STUDIES, THERMOPLASTIC RESINS

Subject Categories : Lighter-than-air Aircraft
      Laminates and Composite Materials

Distribution Statement : APPROVED FOR PUBLIC RELEASE