Nitrated Starch Or Nitrated Sugar Patents (Class 149/108)
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Publication number: 20040144458Abstract: The present invention provides an igniter for an inflator in which a heat generating body generating heat with an ignition current is not damaged, the heat generating body securely contacts a pyrotechnic material and further, a manufacturing process can be facilitated, and a method of manufacturing the same.Type: ApplicationFiled: September 2, 2003Publication date: July 29, 2004Inventors: Gen Kinoshita, Hiroshi Harada, Shingo Oda
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Patent number: 6527887Abstract: Cyclodextrin polymers are nitrated to provide novel nitrate esters of cyclodextrin polymers which are useful for encapsulating explosives to provides energetic compositions of reduced sensitivity; a new method for the preparation of cyclodextrin polymers is provided.Type: GrantFiled: January 18, 2002Date of Patent: March 4, 2003Assignee: Mach I, Inc.Inventors: Anja Ruebner, Gary L. Statton, John P. Consaga
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Patent number: 6468370Abstract: An apparatus (10) comprises a vehicle occupant protection device (14), and an actuator (10) for the vehicle occupant protection device (14). The actuator (10) includes a gas generating material (18) or both a gas generating material (18) and an autoignition material (66). The gas generating material (18), the autoignition material (66), or both the gas generating material (18) and the autoignition material (66) comprise a plasticized cyclodextrin nitrate ester. The plasticized cyclodextrin nitrate ester has an autoignition temperature in the range of about 150° C. to about 180° C. and is resistant to thermal decomposition at a temperature less than 150° C.Type: GrantFiled: April 19, 2000Date of Patent: October 22, 2002Assignee: TRW Inc.Inventor: Harold R. Blomquist
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Patent number: 6110306Abstract: This invention relates to liquid propellant compositions containing an enetic material of organic nitrate esters. The organic nitrate esters of the present invention are complexed with a nitrate ester plasticizer, bismuth subsalicylate, and stabilizer to form liquid compositions with an appropriate energy, stability, and sensitivity that is useful as a propellant.Type: GrantFiled: November 18, 1999Date of Patent: August 29, 2000Assignee: The United States of America as represented by the Secretary of the NavyInventor: John P. Consaga
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Patent number: 5552000Abstract: An explosive composition is derived from a non-aqueous emulsion of a solution of a self-explosive dispersed as the discontinuous phase (D-phase) throughout a continuous phase (C-phase) which is substantially immiscible with the D-phase. The emulsion is prepared by dropping the solution of self-explosive into a dispersion of surfactant or emulsifier in fuel, at a temperature high enough to prevent precipitation of the self-explosive from solution. Upon cooling and aging, the emulsion becomes a pourable or pumpable mass which gradually is destabilized. Upon destabilization and recrystallization in a cavity, a mass of crystals of self-explosive becomes shaped to the cavity.Type: GrantFiled: October 1, 1987Date of Patent: September 3, 1996Assignee: Mega Research CorporationInventor: Walter B. Shepherd, Jr.
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Patent number: 5205983Abstract: An energetic plasticizer for double base propellants comprising (1) a mixe of sorbitol tetra-,penta-, and hexa-nitrate (MSN) and (2) a polyolpolynitrate selected from the group consisting of diethyleneglycoldinitrate (DEGDN), triethyleneglycoldinitrate (TEGDN), nitroglycerin (NG) and mixtures thereof. Also included are compound formulations for double base, modified double base, and composite modified double base propellants incorporating the above energetic plasticizer.Type: GrantFiled: May 13, 1974Date of Patent: April 27, 1993Assignee: The United States of America as represented by the Secretary of the NavyInventors: Albert T. Camp, Hermann S. Haiss, Paul R. Mosher
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Patent number: 5114506Abstract: An energetic composite made of a mixture of(1) a solid nitrate ester of a cyclodextrin or a mixture of cyclodextrins; nd(2) an energetic organic nitrate ester plasticizer.Type: GrantFiled: July 8, 1991Date of Patent: May 19, 1992Assignee: The United States of America as represented by the Secretary of the NavyInventors: John P. Consaga, Steven L. Collignon
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Patent number: 5051142Abstract: Emulsion explosive compositions comprising a discontinuous aqueous oxidizer salt phase and a continuous carbonaceous fuel phase and from about 5% to about 50% nitrostarch are disclosed which exhibit increased resistance to precompression or dead pressing while maintaining high detonation velocities.Type: GrantFiled: January 17, 1990Date of Patent: September 24, 1991Assignee: Atlas Powder CompanyInventors: John J. Mullay, Joseph A. Sohara, Dennis J. Schulz
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Patent number: 4980000Abstract: The present invention provides a method for producing a water-in-oil emulsion and the emulsion explosives therefrom containing nitrostarch by nitrating starch with an excess of a nitrating agent, treating the reaction mixture thereof with anhydrous ammonia to form a solution of water, dissolved ammonium nitrate, and nitrostarch, and thereafter combining the aqueous solution with a carbonaceous fuel phase and emulsifier to form a water-in-oil emulsion. The explosive is provided, preferably, by the distribution of voids throughout the water-in-oil emulsion to render it detonable. The invention is also applicable to the production of melt-in-fuel explosive compositions and water-gel explosives.Type: GrantFiled: January 17, 1990Date of Patent: December 25, 1990Assignee: Atlas Powder CompanyInventor: Joseph A. Sohara
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Patent number: 4523967Abstract: Method of maximizing stability and minimizing production of toxic fumes as explosion by-products by utilizing a moisture resistant blasting composition and said composition, comprising an invert emulsion component having, as the continuous external organic phase thereof, a partial ester of a 2-12 carbon polyhydric alcohol and a tall oil fatty acid, said explosive composition being capable of utilizing sufficient solid oxygen-supplying salt to obtain an Oxygen Balance of about zero without substantial loss of sensitivity.Type: GrantFiled: August 6, 1984Date of Patent: June 18, 1985Assignee: Hercules IncorporatedInventor: Richard V. Cartwright
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Patent number: 4336085Abstract: An improved explosive composition is disclosed and comprises a major portion of an explosive having a detonation velocity between about 1,500 and 10,000 meters per second and a minor amount of a getter additive comprising a non-explosive compound or mixture of non-explosive compounds capable of chemically reacting with free radicals or ions under shock initiation conditions of 2,000 calories/cm.sup.2 or less of energy fluence.Type: GrantFiled: March 2, 1979Date of Patent: June 22, 1982Inventors: Franklin E. Walker, Richard J. Wasley
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Patent number: 4014719Abstract: Flexible, self-supporting explosive compositions composed essentially ently of a particulate high explosive RDX, HMX and/or PETN and a nitrostarch binder plasticized with trimethylolethane trinitrate and/or triethyleneglycol dinitrate.Type: GrantFiled: October 23, 1975Date of Patent: March 29, 1977Assignee: The United States of America as represented by the Secretary of the ArmyInventor: Franklin B. Wells