Accession Number : ADD012634
Title : Bomb and Bomb Liner.
Descriptive Note : Patent,
Corporate Author : DEPARTMENT OF THE AIR FORCE WASHINGTON DC
Personal Author(s) : Aubert,Stephen A
Report Date : 07 Oct 1986
Pagination or Media Count : 4
Abstract : This patent relates broadly to thermoplastic formulations, particularly formulations having a low glass transition point. In one aspect this invention relates to a liner for high explosive devices. In another aspect, this invention relates to thermoplastic formulations. General purpose aerial bombs are lined with a thermoplastic material prior to filling with an explosive in order to provide a barrier between the explosive and the bomb case. Roof asphalt was initially adopted as the primary bomb liner because of its low cost, ease of application and availability. Asphalt is not a pure, homogeneous product. Compatibility problems have been noted in asphalt-lined bombs containing ammonium nitrate-based explosives, in particular, as well as in bombs containing other explosives. It has been proposed to replace the asphalt bomb liner with amorphous polypropylele. Although it is chemically compatible with the high explosives, it is not fully satisfactory as a replacement liner, primarily because of its physical behavior. Accordingly, it is an object of the present invention to provide a novel thermoplastic formulation of amorphous polypropylene and polybutene as a bomb liner. Keywords: Bomb cases; Bomb components.
Descriptors : *POLYPROPYLENE, *PATENTS, AERIAL DELIVERY, AMORPHOUS MATERIALS, ASPHALT, BOMB CASES, BOMB COMPONENTS, COMPATIBILITY, EXPLOSIVE CHARGES, EXPLOSIVES, FORMULATIONS, GENERAL PURPOSE BOMBS, GLASS, HIGH EXPLOSIVES, HOMOGENEITY, LININGS, LOW COSTS, MATERIALS, PHYSICAL PROPERTIES, PURITY, REPLACEMENT, THERMOPLASTIC RESINS, TRANSITIONS, BUTENES
Subject Categories : Plastics
Distribution Statement : APPROVED FOR PUBLIC RELEASE