GB631143A - Improvements in or relating to the manufacture of waterproof non-detonating fuses - Google Patents

Improvements in or relating to the manufacture of waterproof non-detonating fuses

Info

Publication number
GB631143A
GB631143A GB2270747A GB2270747A GB631143A GB 631143 A GB631143 A GB 631143A GB 2270747 A GB2270747 A GB 2270747A GB 2270747 A GB2270747 A GB 2270747A GB 631143 A GB631143 A GB 631143A
Authority
GB
United Kingdom
Prior art keywords
core
nitropolystyrene
fuzes
oxidising
extruded
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
GB2270747A
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.)
HENRY ZENFTMAN
Imperial Chemical Industries Ltd
Original Assignee
HENRY ZENFTMAN
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 HENRY ZENFTMAN, Imperial Chemical Industries Ltd filed Critical HENRY ZENFTMAN
Priority to GB2270747A priority Critical patent/GB631143A/en
Priority to ES0183998A priority patent/ES183998A1/en
Priority to LU29170D priority patent/LU29170A1/xx
Publication of GB631143A publication Critical patent/GB631143A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C06—EXPLOSIVES; MATCHES
    • C06C—DETONATING OR PRIMING DEVICES; FUSES; CHEMICAL LIGHTERS; PYROPHORIC COMPOSITIONS
    • C06C5/00—Fuses, e.g. fuse cords
    • 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
    • C06B45/105—The resin being a polymer bearing energetic groups or containing a soluble organic explosive

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Molecular Biology (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

631,143. Fuzes for blasting ; fuze compositions. ZENFTMAN, H., OWENS, R. D. J., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. Aug. 15, 1947, No. 22707. [Classes 9 (i) and 9 (ii)] Relates to waterproof non-detonating fuzes, in particular safety fuzes, for blasting and like operations which comprise an extruded core in a protective covering. According to the invention, the core is of a homogeneous thermoplastic composition comprising nitropolystyrene with a nitrogen content between 9.4 and 14.4 per cent and a softening point between 60‹ and 200‹ C., pulverulent oxidising and reducing agents being uniformly distributed throughout. The proportion of nitro-polystyrene is such that the composition is extrudable between 60‹ and 200‹ C. and yet allows continuous propagation of combustion through the core. The preferred nitrogen content of the nitropolystyrene is between 11.0 and 14.4 per cent. A mixture of oxidising and reducing agents is worked with the plasticised nitropolystyrene in a Werner Pfleiderer machine to form the core composition, at a temperature between 60‹ and 150‹ C. and extruded through a cylindrical die, preferably at temperatures between 80‹ and 120‹ C. The core may be extruded to enclose an axial metal wire or textile thread. The oxidising and reducing agents may be a lead compound and silicon or barium peroxide and a reducing agent such as sulphur, silicon, magnesium, calcium silicide or ferro-silicon. Examples are given of fuzes made according to the invention having burning speeds between 96 secs. per yard and 408 secs. per yard. In these examples the nitropolystryene has a molecular weight of about 100,000 and a nitrogen content of 13.96 per cent and is plasticised with di-nitrotoluene oil in the ratio of 40 : 60. Specification 616,453, [Group IV (a)] is mentioned as describing a process for the preparation of nitropolystyrene. Specifications 544,252, 580,409 and 610,069 also are referred to.
GB2270747A 1947-08-15 1947-08-15 Improvements in or relating to the manufacture of waterproof non-detonating fuses Expired GB631143A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB2270747A GB631143A (en) 1947-08-15 1947-08-15 Improvements in or relating to the manufacture of waterproof non-detonating fuses
ES0183998A ES183998A1 (en) 1947-08-15 1948-06-05 PROCEDURE FOR THE MANUFACTURE OF NON-DETONATING WATERPROOF WICKERS.
LU29170D LU29170A1 (en) 1947-08-15 1948-07-28

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2270747A GB631143A (en) 1947-08-15 1947-08-15 Improvements in or relating to the manufacture of waterproof non-detonating fuses

Publications (1)

Publication Number Publication Date
GB631143A true GB631143A (en) 1949-10-27

Family

ID=10183797

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2270747A Expired GB631143A (en) 1947-08-15 1947-08-15 Improvements in or relating to the manufacture of waterproof non-detonating fuses

Country Status (3)

Country Link
ES (1) ES183998A1 (en)
GB (1) GB631143A (en)
LU (1) LU29170A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117003601A (en) * 2023-05-24 2023-11-07 湖北及安盾消防科技有限公司 Low temperature-sensing thermosensitive wire and preparation method thereof
WO2024192847A1 (en) * 2023-03-21 2024-09-26 湖北及安盾消防科技有限公司 Environment-friendly multi-core moisture-proof thermosensitive wire and manufacturing method therefor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024192847A1 (en) * 2023-03-21 2024-09-26 湖北及安盾消防科技有限公司 Environment-friendly multi-core moisture-proof thermosensitive wire and manufacturing method therefor
CN117003601A (en) * 2023-05-24 2023-11-07 湖北及安盾消防科技有限公司 Low temperature-sensing thermosensitive wire and preparation method thereof

Also Published As

Publication number Publication date
ES183998A1 (en) 1948-11-16
LU29170A1 (en) 1948-09-28

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