C - Chemistry – Metallurgy – 08 – G
Patent
C - Chemistry, Metallurgy
08
G
C08G 65/24 (2006.01) C07C 247/04 (2006.01) C08G 59/28 (2006.01) C08G 59/62 (2006.01) C08G 65/331 (2006.01)
Patent
CA 2052728
ABSTRACT OF THE DISCLOSURE Glycidyl azide polymers, which are used as binders in composite explosive and propellant compositions, include hydroxyl groups which react with the isocyanate curing agent normally used in such compositions. Since the functionality of available linear glycidyl azide polymers is less than two, trios and/or triisocyanates are needed to crosslink the chains to form a matrix. A glycidyl azide polymer with increased functionality (higher than two) and reactivity obviates the need for triols and triisocyanates in the compositions. Moreover, a glycidyl azide polymer with primary hydroxyl groups would give faster curing reactions at lower temperatures without gassing problems, eliminating the need for a catalyst. Examples of glycidyl azide polymer having increased functionality have one of the formulae: Image wherein R is Image wherein m and n are different from zero, and m + n is 4 to 60.
Ampleman Guy
Her Majesty The Queen In Right Of Canada As Represented By The M
Seaby & Associates
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