GB1326721A - High specific impulse propellants - Google Patents
High specific impulse propellantsInfo
- Publication number
- GB1326721A GB1326721A GB1326721DA GB1326721A GB 1326721 A GB1326721 A GB 1326721A GB 1326721D A GB1326721D A GB 1326721DA GB 1326721 A GB1326721 A GB 1326721A
- Authority
- GB
- United Kingdom
- Prior art keywords
- aluminium
- binder
- propellent
- binders
- diisocyanate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C06—EXPLOSIVES; MATCHES
- C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
- C06B45/00—Compositions or products which are defined by structure or arrangement of component of product
- C06B45/04—Compositions or products which are defined by structure or arrangement of component of product comprising solid particles dispersed in solid solution or matrix not used for explosives where the matrix consists essentially of nitrated carbohydrates or a low molecular organic explosive
- C06B45/06—Compositions or products which are defined by structure or arrangement of component of product comprising solid particles dispersed in solid solution or matrix not used for explosives where the matrix consists essentially of nitrated carbohydrates or a low molecular organic explosive the solid solution or matrix containing an organic component
- C06B45/10—Compositions or products which are defined by structure or arrangement of component of product comprising solid particles dispersed in solid solution or matrix not used for explosives where the matrix consists essentially of nitrated carbohydrates or a low molecular organic explosive the solid solution or matrix containing an organic component the organic component containing a resin
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Dispersion Chemistry (AREA)
- Molecular Biology (AREA)
- Crystallography & Structural Chemistry (AREA)
- Organic Chemistry (AREA)
- Paints Or Removers (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
1326721 Propellent compositions AEROJETGENERAL CORP 11 June 1961 25149/61 Heading C1D A solid propellent composition comprises an intimate mixture of a solid inorganic oxidizing salt, a binder and not less than about 5% by weight of aluminium. The binder is preferably a cross-linked urethane type synthetic resin formed by reacting a diol or dithiol with a diisocyanate or diisothiocyanate in the presence of a cross-linking agent having at least three reactive groups. The specification lists many suitable reactants. The diols and dithiols include polyesters prepared from dihydric alcohols and dibasic acids and preferably mixed with olefines, polyalkylene ether glycols, and polysulphides. The polyurethane reaction may take place in the presence of a plasticizer, curing catalyst, and solvent at a temperature of 70‹-180‹ F. Preferably there is used a slight excess of the isocyanate component over the hydroxy component. Other suitable binders are asphalt, synthetic rubber, polysulphides, and phenolaldehyde, polyester, acrylate, and polyalkylene resins. Such binders are described in Specification 579,057 and United States Specifications 2,479,828, 3,012,866 and 3,031,288. A nitrocellulose-plasticizer binder may also be used. If nitro-substituted acrylic resins or polyurethane resins are used, the presence of an oxidizing salt is not necessary. The aluminium is preferably in powder form having spherical particles and may be present in an amount of 11-26% by weight. Solid oxidizing salts specified are the chromates, dichromates, permanganates, nitrates, chlorates, and perchlorates of alkali and alkaline earth metals, ammonia, hydrazine, or guanidine. The propellent may also contain burning rate modifiers, wetting agents, antifoaming agents, and antioxidants. In examples of compositions containing polyurethane type binders, the following ingredients are used in addition to aluminium powder: as urethane reactants, polypropylene glycol, polybutylene glycol, tolylene diisocyanate, hexamethylene diisocyanate, and a prepolymer of polybutylene glycol and tolylene diisocyanate; as cross-linking agents, glycerol monoricinoleate, glycerol triricinoleate, methylene-bis-(orthochloroaniline), polypropylene glycol initiated with 1,2,6-hexanetriol, monohydroxyethyltrihydroxypropylene - diamine, triethanolamine, trimethylolpropane, and hexenetriol; as oxidants, ammonium perchlorate, lithium perchlorate, ammonium nitrate, and nitroguanidine; as burning rate modifiers, copper chromite, carbon black, and calcium oxalate; as plasticizers, dioctyl azelate, isodecyl pelargonate, trioctyl phosphate, and as antioxidants, phenyl betanaphthylamine N,N<SP>1</SP> - di - beta - naphthyl - p - phenylenediamine, and N,N<SP>1</SP>-diphenyl-p-phenylenediamine; as curing catalyst, ferric acetylacetonate; and as wetting agents, lecithin, sorbitan trioleate, sorbitan monooleate-polyoxyethylene derivative mixtures, and a mixture of polyethoxy amines. In Example XVI, the ingredients are plastisol grade nitrocellulose, pentaerythritol trinitrate, aluminium powder, and ammonium perchlorate. Specification 984,960 is referred to.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2514961 | 1961-08-11 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1326721A true GB1326721A (en) | 1973-08-15 |
Family
ID=10223032
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1326721D Expired GB1326721A (en) | 1961-08-11 | 1961-08-11 | High specific impulse propellants |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1326721A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4430131A (en) | 1979-11-08 | 1984-02-07 | Her Majesty The Queen In Right Of Canada | Polyurethane binders |
EP2489649A1 (en) * | 2009-10-15 | 2012-08-22 | Nipponkayaku Kabushikikaisha | Gas generating agent composition, molded product of the composition, and gas generation device equipped with the molded product |
CN114380720A (en) * | 2022-01-27 | 2022-04-22 | 湖北航天化学技术研究所 | Improved liquid urea speed reducer, preparation method thereof and solid propellant |
-
1961
- 1961-08-11 GB GB1326721D patent/GB1326721A/en not_active Expired
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4430131A (en) | 1979-11-08 | 1984-02-07 | Her Majesty The Queen In Right Of Canada | Polyurethane binders |
EP2489649A1 (en) * | 2009-10-15 | 2012-08-22 | Nipponkayaku Kabushikikaisha | Gas generating agent composition, molded product of the composition, and gas generation device equipped with the molded product |
EP2489649A4 (en) * | 2009-10-15 | 2014-01-01 | Nippon Kayaku Kk | Gas generating agent composition, molded product of the composition, and gas generation device equipped with the molded product |
CN114380720A (en) * | 2022-01-27 | 2022-04-22 | 湖北航天化学技术研究所 | Improved liquid urea speed reducer, preparation method thereof and solid propellant |
CN114380720B (en) * | 2022-01-27 | 2023-10-27 | 湖北航天化学技术研究所 | Improved liquid urea speed reducer, preparation method thereof and solid propellant |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US3954528A (en) | Solid gas generating and gun propellant composition containing triaminoguanidine nitrate and synthetic polymer binder | |
US3909322A (en) | Solid gas generating and gun propellant compositions containing a nitroaminotetrazole salt | |
US4158583A (en) | High performance ammonium nitrate propellant | |
US3956890A (en) | Solid propellant binder and propellant | |
US3245849A (en) | Solid propellant compositions containing polyurethane resins of low cure temperature | |
US6059906A (en) | Methods for preparing age-stabilized propellant compositions | |
JPS61201687A (en) | Composite pyrotechnical products and manufacture | |
US3734789A (en) | Gas generating solid propellant containing 5-aminotetrazole nitrate | |
GB964437A (en) | Stable burning solid propellents | |
US3798090A (en) | Process for producing cross-linked propellants | |
US3745076A (en) | Propellant composition with a nitro containing cross-linked binder | |
US3362859A (en) | Gas-generating compositions and their preparation | |
US3793099A (en) | Solid propellant with polyurethane binder | |
US3711343A (en) | Cellular nitrocellulose based composition and method of making | |
US3132976A (en) | Solid propellant compositions containing polyurethane resins | |
US3695952A (en) | Solid propellant compositions containing hydroxymethyl-terminated polydienes | |
US6364975B1 (en) | Ammonium nitrate propellants | |
US3822154A (en) | Suppression of unstable burning using finely divided metal oxides | |
GB1326721A (en) | High specific impulse propellants | |
US4000025A (en) | Incorporating ballistic modifiers in slurry cast double base containing compositions | |
US4482408A (en) | Plasticizer system for propellant compositions | |
US4871854A (en) | Cure catalyst for polyurethanes | |
US3086895A (en) | Solid composite propellant containing acetylenic polyurethane and process of making | |
US3846195A (en) | Composite polyurethane propellants with negative pressure exponent of ammonium sulfate | |
US3976522A (en) | Nitroplasticized amine perchlorate flexible explosives |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PE | Patent expired |