Accession Number : ADD013480

Title :   Thixotropic Restrictor, Curable at Room Temperature, for Use on Solid Propellant Grains.

Descriptive Note : Patent, Filed 21 Jul 80, patented 1 Mar 83,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Braun, John D

Report Date : 01 Mar 1983

Pagination or Media Count : 3

Abstract : The present invention relates to a method for preparing a solid rocket motor propellant grain restrictor which prevents chamber pressure buildup (spiking) and erosive burning upon ignition. This restrictor can be used on any hydroxyl-terminated polybutadiene (HTPB) propellant grain and on various polyurethane propellant grains which employ an isocyanate cure.

Descriptors :   *POLYURETHANE RESINS, *PROPELLANT GRAINS, *SOLID PROPELLANTS, *PATENTS, CHAMBERS, CURING, HYDROXYL RADICALS, IGNITION, POLYBUTADIENE, PRESSURE, ROOM TEMPERATURE

Subject Categories : Solid Rocket Propellants

Distribution Statement : APPROVED FOR PUBLIC RELEASE