Title:
SYNTHESIS OF ENERGETIC THERMOPLASTIC ELASTOMERS CONTAINING OLIGOMERIC URETHANE LINKAGES
Document Type and Number:
WIPO Patent Application WO2000034350
Kind Code:
A3
Abstract:
This thermoplastic elastomer is present in a substantially solid state suitable for use as a binder for a propellant, explosive, and/or gas generant of a supplemental restraint system. The thermoplastic elastomer is formed from a composition including A blocks which are crystalline at temperatures below about 75 DEG C and B blocks which are amorphous at temperatures above about -20 DEG C. The A blocks are derived from oxetane derivatives and/or tetrahydrofuran derivatives. The B blocks are derived from oxetanes, tetrahydrofuran, oxiranes, and derivatives thereof. The A and B blocks are end-capped with at least one diisocyanate and linked with at least one difunctional oligomer having two functional groups which are reactive with free and unreacted isocyanate moieties of the diisocyanate.
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Inventors:
SANDERSON ANDREW JOHN
EDWARDS WAYNE
EDWARDS WAYNE
Application Number:
PCT/US1999/024014
Publication Date:
December 21, 2000
Filing Date:
November 09, 1999
Export Citation:
Assignee:
CORDANT TECH INC (US)
International Classes:
C06B45/10; C08G18/10; C08G18/28; C08G18/50; C08G65/18; C08G65/20; C08G65/22
Foreign References:
| US4806613A | 1989-02-21 | |||
| GB2307688A | 1997-06-04 | |||
| US5210153A | 1993-05-11 | |||
| EP0353961A2 | 1990-02-07 | |||
| US4393199A | 1983-07-12 |
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