GB579057A - Improvements in or relating to propellant compositions suitable for projectiles of the reaction-impulse type - Google Patents

Improvements in or relating to propellant compositions suitable for projectiles of the reaction-impulse type

Info

Publication number
GB579057A
GB579057A GB1084243A GB1084243A GB579057A GB 579057 A GB579057 A GB 579057A GB 1084243 A GB1084243 A GB 1084243A GB 1084243 A GB1084243 A GB 1084243A GB 579057 A GB579057 A GB 579057A
Authority
GB
United Kingdom
Prior art keywords
resin
mixture
formaldehyde
phenol
condensation product
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
Application number
GB1084243A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to GB1084243A priority Critical patent/GB579057A/en
Publication of GB579057A publication Critical patent/GB579057A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C06—EXPLOSIVES; MATCHES
    • C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
    • C06B21/00—Apparatus or methods for working-up explosives, e.g. forming, cutting, drying
    • C06B21/0033—Shaping the mixture
    • C06B21/0058—Shaping the mixture by casting a curable composition, e.g. of the plastisol type
    • C—CHEMISTRY; METALLURGY
    • C06—EXPLOSIVES; MATCHES
    • C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
    • C06B21/00—Apparatus or methods for working-up explosives, e.g. forming, cutting, drying
    • C06B21/0008—Compounding the ingredient
    • C06B21/0025—Compounding the ingredient the ingredient being a polymer bonded explosive or thermic component
    • C—CHEMISTRY; METALLURGY
    • C06—EXPLOSIVES; MATCHES
    • C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
    • C06B31/00—Compositions containing an inorganic nitrogen-oxygen salt
    • C06B31/02—Compositions containing an inorganic nitrogen-oxygen salt the salt being an alkali metal or an alkaline earth metal nitrate
    • C06B31/12—Compositions containing an inorganic nitrogen-oxygen salt the salt being an alkali metal or an alkaline earth metal nitrate with a nitrated organic compound
    • C06B31/14—Compositions containing an inorganic nitrogen-oxygen salt the salt being an alkali metal or an alkaline earth metal nitrate with a nitrated organic compound the compound being an aromatic

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Phenolic Resins Or Amino Resins (AREA)

Abstract

A propellant suitable for projectiles of the reaction-impulse type (or for assisting in the take-off of aeroplanes) is made by mixing a gas-generating powder with thermosetting artificial p resin in liquid form, cold-moulding the mixture, and then curing the moulded product by heat. The powder comprises an oxidizer such as sodium nitrate (50 per cent by weight) and a reducer such as ammonium picrate (50 per cent by weight). The resin may be the condensation product of formaldehyde with phenols, alkyl substituted phenols (such as tertiary butyl or tertiary amyl phenol), phenylphenol, melamine, substituted melamines; or may be polybasic acid-polyhydric alcohol condensation products, or a mixture of plasticised polyvinyl acetal composition with enough urea- or melamine-formaldehyde condensation product to make the mixture thermosetting. The resin is used in the partly condensed liquid state, with or without a solvent such as xylene, and may form 5 to 10 per cent by weight of the mixture of resin and powder. The mixture is pressed at 15-35 DEG C., and the resultant block is examined for microscopic cracks by painting with a dye. When the resin contains solvent, the blocks are partly cured by enclosing them in sealed containers (to prevent solvent evaporation and resultant cracking of the blocks) and heating in an oven at 60 DEG C. for 6-8 days, then fully cured in the open (without the containers) at 60 DEG C. for 2-4 days. When the resin does not contain solvent, the whole of the cure may be effected in the open. A phenol-formaldehyde condensation product may be made by condensing 1 mol. of phenol with 2 mols. of formaldehyde in the presence of an alkaline catalyst to a point at which the liquid resin has a viscosity between 500 and 10,000 poises at 25 DEG C. The alkaline catalyst is then neutralized and replaced by an acid catalyst and the resulting thermosetting material may be dissolved in xylene. The ratio of phenol to formaldehyde used in making the condensation product may be 1 : 1 or 1.2 : 1.6 (molecular proportions). The mixture of sodium nitrate and ammonium picrate accelerates the cure of the resin. Specifications 248,089, [Class 9 (ii)], 354,305, [Group XXI], and 579,058 are referred to.
GB1084243A 1943-07-03 1943-07-03 Improvements in or relating to propellant compositions suitable for projectiles of the reaction-impulse type Expired GB579057A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1084243A GB579057A (en) 1943-07-03 1943-07-03 Improvements in or relating to propellant compositions suitable for projectiles of the reaction-impulse type

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1084243A GB579057A (en) 1943-07-03 1943-07-03 Improvements in or relating to propellant compositions suitable for projectiles of the reaction-impulse type

Publications (1)

Publication Number Publication Date
GB579057A true GB579057A (en) 1946-07-22

Family

ID=9975328

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1084243A Expired GB579057A (en) 1943-07-03 1943-07-03 Improvements in or relating to propellant compositions suitable for projectiles of the reaction-impulse type

Country Status (1)

Country Link
GB (1) GB579057A (en)

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2630379A (en) * 1949-10-14 1953-03-03 Atlas Powder Co Method of improving the waterresistance of ammonium nitrate explosives
US2836172A (en) * 1955-05-02 1958-05-27 Aerojet General Co Torch
US2978305A (en) * 1954-05-10 1961-04-04 Aerojet General Co Propellant compositions
US2990263A (en) * 1949-02-03 1961-06-27 William H Avery Process for manufacturing rocket propellants
US3000714A (en) * 1953-12-21 1961-09-19 Aerojet General Co Propellant compositions
US3000715A (en) * 1954-05-10 1961-09-19 Aerojet General Co Propellant compositions
US3009386A (en) * 1956-10-22 1961-11-21 Hispano Suiza Sa Methods of preparing compressed explosive charges
US3031288A (en) * 1949-08-09 1962-04-24 Aerojet General Co Solid composite propellant containing crosslinked polyester resin
US3031347A (en) * 1951-02-05 1962-04-24 Aerojet General Co Slow burning solid composite propellant
US3036939A (en) * 1949-03-03 1962-05-29 Hercules Powder Co Ltd Cast gas-producing charge containing nitrocellulose and vinyl polymers
US3058858A (en) * 1953-07-29 1962-10-16 Aerojet General Co Composite polyester propellant containing a silicon compound as burning rate catalyst
US3068129A (en) * 1951-10-02 1962-12-11 Gen Tire & Rubber Co Rocket propellant
US3092526A (en) * 1951-02-05 1963-06-04 Aerojet General Co Ammonium perchlorate resin base propellants
US3108027A (en) * 1954-03-22 1963-10-22 Aerojet General Co Propellant compositions
US3150018A (en) * 1954-05-17 1964-09-22 Aerojet General Co Solid propellant compositions containing unsaturated polyester resin
US3249475A (en) * 1952-07-22 1966-05-03 Joseph S Jorczak Polybutadiene rocket propellant compositions
US3653994A (en) * 1954-05-24 1972-04-04 Aerojet General Co Propellant compositions containing a metal nitrite burning rate catalyst

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2990263A (en) * 1949-02-03 1961-06-27 William H Avery Process for manufacturing rocket propellants
US3036939A (en) * 1949-03-03 1962-05-29 Hercules Powder Co Ltd Cast gas-producing charge containing nitrocellulose and vinyl polymers
US3031288A (en) * 1949-08-09 1962-04-24 Aerojet General Co Solid composite propellant containing crosslinked polyester resin
US2630379A (en) * 1949-10-14 1953-03-03 Atlas Powder Co Method of improving the waterresistance of ammonium nitrate explosives
US3092526A (en) * 1951-02-05 1963-06-04 Aerojet General Co Ammonium perchlorate resin base propellants
US3031347A (en) * 1951-02-05 1962-04-24 Aerojet General Co Slow burning solid composite propellant
US3068129A (en) * 1951-10-02 1962-12-11 Gen Tire & Rubber Co Rocket propellant
US3249475A (en) * 1952-07-22 1966-05-03 Joseph S Jorczak Polybutadiene rocket propellant compositions
US3058858A (en) * 1953-07-29 1962-10-16 Aerojet General Co Composite polyester propellant containing a silicon compound as burning rate catalyst
US3000714A (en) * 1953-12-21 1961-09-19 Aerojet General Co Propellant compositions
US3108027A (en) * 1954-03-22 1963-10-22 Aerojet General Co Propellant compositions
US3000715A (en) * 1954-05-10 1961-09-19 Aerojet General Co Propellant compositions
US2978305A (en) * 1954-05-10 1961-04-04 Aerojet General Co Propellant compositions
US3150018A (en) * 1954-05-17 1964-09-22 Aerojet General Co Solid propellant compositions containing unsaturated polyester resin
US3653994A (en) * 1954-05-24 1972-04-04 Aerojet General Co Propellant compositions containing a metal nitrite burning rate catalyst
US2836172A (en) * 1955-05-02 1958-05-27 Aerojet General Co Torch
US3009386A (en) * 1956-10-22 1961-11-21 Hispano Suiza Sa Methods of preparing compressed explosive charges

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