C - Chemistry – Metallurgy – 08 – K
Patent
C - Chemistry, Metallurgy
08
K
23/59, 400/8201,
C08K 5/34 (2006.01) C08K 3/22 (2006.01) C08K 5/3432 (2006.01)
Patent
CA 1098281
ABSTRACT OF THE DISCLOSURE A poly(phosphazene) represented by the general formula: Image wherein n represents an integer from 20 up to about 50,000 and X an X1 each represent a monovalent substituent selected from the groups consisting of alkoxy, substituted alkoxy, aryloxy, substituted aryloxy, hydroxy, and amino, and X and X1 are randomly distributed along the -P=N- backbone, is stabi- lized against thermal aging by the incorporation of a stabilizer consisting of (1) an organic compound compatible with the poly(phosphazene) and present in an amount sufficient to sta- bilize the poly(phosphazene) against thermal degradation up to temperatures of about 500°F, the organic compound being selec- ted from the group consisting of substituted picolinamides and substituted thiopicolonamides wherein the substituents are selected from the group consisting of hydroxy, alkyl, aryl, alkoxy and halogen, and (2) a basic oxide selected from the group consisting of MgO and ZnO and present in an amount sufficient to render the picolinamide effective as a stabilizer. The combination of such additives acts synergistically in inhibiting thermal degradation of the poly(phosphazene).
298924
Firestone Tire & Rubber Company (the)
Robic Robic & Associes/associates
LandOfFree
Stabilization of polyphosphazenes does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Stabilization of polyphosphazenes, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Stabilization of polyphosphazenes will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-274425