GB949086A - Improvements in composite propellants and the like - Google Patents

Improvements in composite propellants and the like

Info

Publication number
GB949086A
GB949086A GB1447961A GB1447961A GB949086A GB 949086 A GB949086 A GB 949086A GB 1447961 A GB1447961 A GB 1447961A GB 1447961 A GB1447961 A GB 1447961A GB 949086 A GB949086 A GB 949086A
Authority
GB
United Kingdom
Prior art keywords
groups
diisocyanate
present
resin
trinitroresorcinol
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
GB1447961A
Inventor
Giannetto Corsi
Eugenio Rottenbacher
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.)
Bombrini Parodi Delfino SpA
Original Assignee
Bombrini Parodi Delfino SpA
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 Bombrini Parodi Delfino SpA filed Critical Bombrini Parodi Delfino SpA
Publication of GB949086A publication Critical patent/GB949086A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/30—Low-molecular-weight compounds
    • C08G18/38—Low-molecular-weight compounds having heteroatoms other than oxygen
    • C08G18/3819—Low-molecular-weight compounds having heteroatoms other than oxygen having nitrogen
    • C08G18/384—Low-molecular-weight compounds having heteroatoms other than oxygen having nitrogen containing nitro groups
    • 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
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/40—High-molecular-weight compounds
    • C08G18/42—Polycondensates having carboxylic or carbonic ester groups in the main chain
    • C08G18/46—Polycondensates having carboxylic or carbonic ester groups in the main chain having heteroatoms other than oxygen
    • C08G18/4615—Polycondensates having carboxylic or carbonic ester groups in the main chain having heteroatoms other than oxygen containing nitrogen
    • C08G18/463—Polycondensates having carboxylic or carbonic ester groups in the main chain having heteroatoms other than oxygen containing nitrogen containing nitro groups
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
    • C08G18/72—Polyisocyanates or polyisothiocyanates
    • C08G18/77—Polyisocyanates or polyisothiocyanates having heteroatoms in addition to the isocyanate or isothiocyanate nitrogen and oxygen or sulfur
    • C08G18/78—Nitrogen
    • C08G18/7868—Nitrogen containing nitro groups

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Molecular Biology (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Adhesives Or Adhesive Processes (AREA)
  • Polyurethanes Or Polyureas (AREA)

Abstract

A composite propellant or a mixture for a gas generator comprises an elastomeric binder which contains substituent nitro groups in a polyurethane resin. The nitro groups may be present in any part of the molecule and in the cross-linking agents. In examples, the resin is obtained from sebacic acid, propyleneglycol, and 3-nitrophthalic acid or trinitroresorcinol or nitrated 2,4-toluene-diisocyanate. Ammonium perchlorate is added as the oxidizing agent.ALSO:The binder for a propellant composition (see Division C1) comprises an elastomeric polyurethane resin containing substituent No. 2 groups. These groups may be present in the polyester chain; in the polyether chain; in the mono- or polyisocyanate; or in the cross linking agent if present. In Examples, (No. 1), a sebacic acid, propylene glycol, 3-nitrophthalic acid polyester and toluene -2, 4-diisocyanate are reacted together; and in Example 3 the resin is prepared from polypropylene glycol, trinitroresorcinol, dibutylsebacate, glycol ester of glycerine and an aromatic diisocyanate.
GB1447961A 1960-04-22 1961-04-21 Improvements in composite propellants and the like Expired GB949086A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT700960 1960-04-22

Publications (1)

Publication Number Publication Date
GB949086A true GB949086A (en) 1964-02-12

Family

ID=11123318

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1447961A Expired GB949086A (en) 1960-04-22 1961-04-21 Improvements in composite propellants and the like

Country Status (1)

Country Link
GB (1) GB949086A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3985699A (en) 1974-06-07 1976-10-12 Ab Bofors Method of manufacturing mould members of polyurethane-bonded granular material
GB2175912A (en) * 1985-05-31 1986-12-10 Ashland Oil Inc Vapor permeation curable coatings comprising poly (nitro alcohol)compounds and multi-isocyanate curing agents
US11028217B1 (en) * 2020-03-13 2021-06-08 Biocellection Inc. Thermoplastic polyurethane compositions comprising nitro-substituted polyester diols

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3985699A (en) 1974-06-07 1976-10-12 Ab Bofors Method of manufacturing mould members of polyurethane-bonded granular material
GB2175912A (en) * 1985-05-31 1986-12-10 Ashland Oil Inc Vapor permeation curable coatings comprising poly (nitro alcohol)compounds and multi-isocyanate curing agents
GB2175912B (en) * 1985-05-31 1989-07-12 Ashland Oil Inc Vapor permeation curable coatings comprising nitro alcohol compounds and polyisocyanate curing agents
US11028217B1 (en) * 2020-03-13 2021-06-08 Biocellection Inc. Thermoplastic polyurethane compositions comprising nitro-substituted polyester diols
EP4118131A4 (en) * 2020-03-13 2024-03-06 Novoloop, Inc. Thermoplastic polyurethane compositions comprising nitro-substituted polyester diols

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