CA2214729A1 - Energetic copolyurethane thermoplastic elastomer - Google Patents

Energetic copolyurethane thermoplastic elastomer

Info

Publication number
CA2214729A1
CA2214729A1 CA 2214729 CA2214729A CA2214729A1 CA 2214729 A1 CA2214729 A1 CA 2214729A1 CA 2214729 CA2214729 CA 2214729 CA 2214729 A CA2214729 A CA 2214729A CA 2214729 A1 CA2214729 A1 CA 2214729A1
Authority
CA
Canada
Prior art keywords
thermoplastic elastomer
energetic
copolyurethane thermoplastic
energetic copolyurethane
recyclable
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.)
Granted
Application number
CA 2214729
Other languages
French (fr)
Other versions
CA2214729C (en
Inventor
Guy Ampleman
Sylvain Desilets
Andre Marois
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.)
Minister of National Defence of Canada
Original Assignee
Minister of National Defence of Canada
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 Minister of National Defence of Canada filed Critical Minister of National Defence of Canada
Publication of CA2214729A1 publication Critical patent/CA2214729A1/en
Priority to US09/517,458 priority Critical patent/US6479614B1/en
Application granted granted Critical
Publication of CA2214729C publication Critical patent/CA2214729C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Abstract

An energetic copolyurethane thermoplastic elastomer is prepared by polymerizing a dihydroxyl terminated telechelic energetic polymer having a functionality of two or less with a diisocyanate at a NCO/OH ratio of about 0.7 to 1.2. The resulting copolymer is easy to incorporate in gun propellant formulations and is recyclable.
CA 2214729 1997-07-18 1997-09-08 Energetic copolyurethane thermoplastic elastomer Expired - Fee Related CA2214729C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US09/517,458 US6479614B1 (en) 1997-07-18 2000-03-02 Energetic copolyurethane thermoplastic elastomers

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US053,968 1979-07-02
US5396897P 1997-07-28 1997-07-28

Publications (2)

Publication Number Publication Date
CA2214729A1 true CA2214729A1 (en) 1999-01-28
CA2214729C CA2214729C (en) 2003-05-13

Family

ID=29399043

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2214729 Expired - Fee Related CA2214729C (en) 1997-07-18 1997-09-08 Energetic copolyurethane thermoplastic elastomer

Country Status (1)

Country Link
CA (1) CA2214729C (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1167324A1 (en) * 2000-06-27 2002-01-02 The Minister of National Defence Government of Canada Insensitive melt cast explosive compositions containing energetic thermoplastic elastomers
EP1186582A1 (en) * 2000-09-08 2002-03-13 Her Majesty in Right of Canada, as represented by the Minister of National Defence Insensitive propellant formulations containing energetic copolyurethane thermoplastic elastomers
US6600002B2 (en) * 2000-05-02 2003-07-29 Alliant Techsystems, Inc. Chain-extended poly(bis-azidomethyloxetane), and combustible cartridge cases and ammunition comprising the same

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6600002B2 (en) * 2000-05-02 2003-07-29 Alliant Techsystems, Inc. Chain-extended poly(bis-azidomethyloxetane), and combustible cartridge cases and ammunition comprising the same
EP1167324A1 (en) * 2000-06-27 2002-01-02 The Minister of National Defence Government of Canada Insensitive melt cast explosive compositions containing energetic thermoplastic elastomers
EP1186582A1 (en) * 2000-09-08 2002-03-13 Her Majesty in Right of Canada, as represented by the Minister of National Defence Insensitive propellant formulations containing energetic copolyurethane thermoplastic elastomers

Also Published As

Publication number Publication date
CA2214729C (en) 2003-05-13

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed