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특허 상세정보

Semi-continuous two-component method for obtaining a composite explosive charge with polyurethane matrix

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) D03D-023/00   
미국특허분류(USC) 149/1096; 149/01992
출원번호 US-0600770 (2006-11-17)
우선권정보 FR-2005-5 11892(2005-11-24)
발명자 / 주소
출원인 / 주소
대리인 / 주소
    Oliff & Berridge, PLC
인용정보 피인용 횟수 : 3  인용 특허 : 8
초록

The present invention relates to a semi-continuous method for obtaining a composite explosive charge comprising a solid polyurethane matrix loaded with a charge, the charge being in powder form and comprising at least one nitro-organic explosive. The said method comprises the following successive steps:the obtaining of a pasty explosive composition comprising essentially the following ingredients:a polyol pre-polymer,a polyisocycanate monomer,a plasticising agent, anda solid charge in powder form comprising at least one nitro-organic explosive,by continu...

대표
청구항

The invention claimed is: 1. A semi-continuous method for obtaining a composite explosive charge comprising a solid polyurethane matrix loaded with a charge, the method comprising the following successive steps:continuously mixing a pasty component A′ and a liquid component B′ to obtain a pasty explosive composition comprising:a polyol pre-polymer,a polyisocyanate monomer,a plasticising agent, anda solid charge in powder form comprising at least one nitro-organic explosive;introducing the pasty explosive composition into a mold; andthermally cross-linkin...

이 특허에 인용된 특허 (8)

  1. Berard Jean-Daniel M. (6 ; rue de la Sorbonne 75005 Paris FRX) Finck Bernard E. (8 ; rue Lopold Vandries 91100 Corbeil Essonnes FRX) Doriath Grard (19 ; avenue du Midi 91760 Itteville FRX) Perut Chri. Autopyrolyzable composition for aerobic propulsion, the oxidizing agent of which is an explosive. USP1992025085717.
  2. Hiorth Hans (Lierbyen NOX). Continuous flow static mixer for mixing powder and/or suspension materials with liquid materials. USP1980034191480.
  3. Newman Kirk E. (Newport News VA) Gusack James A. (Williamsburg VA) Zehmer ; III John A. (Newport News VA). Continuous manufacture and casting. USP1992055114630.
  4. Curtis Donald D. (San Jose CA). Low burn rate motor propellant. USP1986124632715.
  5. Brown Robert James,GBX ; Cooke Ernest Melville Guthrie,GBX ; Spickernell Graham James,GBX ; Treadgold Arthur Ronald,GBX ; Tucker Bernard George,GBX. Manufacture of propellant compositions and propellant charges. USP2000036036894.
  6. Terhardt Josef (Rhede DEX). Method of and apparatus for transporting and conditioning casting materials and for charging casting machines with them. USP1996065529212.
  7. Perotto Christian (Ballancourt FRX) Ragon Philippe (Ris Orangis FRX). Process for the solvent-free manufacture of compound pyrotechnic products containing a thermosetting binder and products. USP1987044657607.
  8. Kirchmeyer Stephan,DEX ; Muller Hanns Peter,DEX ; Ullrich Martin,DEX ; Liesenfelder Ulrich,DEX. Thermoplastic polyurethaneurea elastomers. USP1998045739252.