GB874259A - Improvements in propellent powders - Google Patents

Improvements in propellent powders

Info

Publication number
GB874259A
GB874259A GB4226958A GB4226958A GB874259A GB 874259 A GB874259 A GB 874259A GB 4226958 A GB4226958 A GB 4226958A GB 4226958 A GB4226958 A GB 4226958A GB 874259 A GB874259 A GB 874259A
Authority
GB
United Kingdom
Prior art keywords
granules
nitroglycerine
sym
nitrocellulose
diphenyl urea
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
GB4226958A
Inventor
Herbert Leslie Wood
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.)
Imperial Chemical Industries Ltd
Original Assignee
Imperial Chemical Industries Ltd
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 Imperial Chemical Industries Ltd filed Critical Imperial Chemical Industries Ltd
Priority to GB4226958A priority Critical patent/GB874259A/en
Publication of GB874259A publication Critical patent/GB874259A/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
    • C06B21/0083—Treatment of solid structures, e.g. for coating or impregnating with a modifier
    • C—CHEMISTRY; METALLURGY
    • C06—EXPLOSIVES; MATCHES
    • C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
    • C06B25/00—Compositions containing a nitrated organic compound
    • C06B25/18—Compositions containing a nitrated organic compound the compound being nitrocellulose present as 10% or more by weight of the total composition
    • C06B25/24—Compositions containing a nitrated organic compound the compound being nitrocellulose present as 10% or more by weight of the total composition with nitroglycerine
    • C06B25/26—Compositions containing a nitrated organic compound the compound being nitrocellulose present as 10% or more by weight of the total composition with nitroglycerine with an organic non-explosive or an organic non-thermic component

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Emergency Medicine (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)

Abstract

874,259. Propellant powders. IMPERIAL CHEMICAL INDUSTRIES Ltd. June 5, 1959 [Dec. 31, 1958], No. 42269/58. Addition to 861,810. Class 9(2). The method of preparing surface moderated double-base propellant powders claimed in the parent Specification is modified in that the granules which are treated contain about 3% of a non-volatile liquid non-explosive plasticizer for nitrocellulose miscible with nitroglycerine, e.g. dibutyl phthalate. The liquid explosive nitric ester is nitroglycerine, the resinous substance is a glyceryl ester of wood rosin, a pentaerythrityl ester of polymerized wood rosin, or lead naphthenate and is applied in an amount not exceeding 3% by weight of the granules together with a solid non-volatile non-explosive nitrocellulose gelatinizer soluble in nitroglycerine, e.g. sym.- diethyl diphenyl urea, and the tumbling is carried out with an excess of graphite at a temperature of 35‹-80‹C. The graphite completely covers the granules and is the chief surface moderating agent. The granules treated may also contain a small amount of the sym-diethyl diphenyl urea which acts as a stabilizer for the nitrocellulose as well as a gelatinizer. In examples granules containing nitrocellulose, nitroglycerine, dibutyl phthalate, sym-diethyl diphenyl urea, and potassium sulphate are treated with a glyceryl ester of wood rosin, sym.-diethyl diphenyl urea, and a wetting agent dispersed in water at a temperature rising from 25‹ to 40‹C., dried at 45‹C. and tumbled with excess powdered graphite at a temperature rising to 50‹C.
GB4226958A 1958-12-31 1958-12-31 Improvements in propellent powders Expired GB874259A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4226958A GB874259A (en) 1958-12-31 1958-12-31 Improvements in propellent powders

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4226958A GB874259A (en) 1958-12-31 1958-12-31 Improvements in propellent powders

Publications (1)

Publication Number Publication Date
GB874259A true GB874259A (en) 1961-08-02

Family

ID=10423664

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4226958A Expired GB874259A (en) 1958-12-31 1958-12-31 Improvements in propellent powders

Country Status (1)

Country Link
GB (1) GB874259A (en)

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