| 摘要 |
Organic peroxide compositions which contain a .beta.- dicarbonyl compound or a cyclic a-diketone compound as stabilizer to retard the rate of decomposition of the peroxide compound are disclosed. The stabilizer selected from the formulas (I), (II), (III), (IV) R5-C (O) -CHR6-C (O) -R7 (III) and mixtures thereof, wherein m is 1-5, n is 1-6, i is 0-1, x is 0-2n, y is 0-2m, R1 is alkyl containing 1 to 22 carbon atoms, phenyl, or phenyl substituted with one or more of alkyl containing 1 to 22 carbon atoms, halogen, and hydroxy, and R1 can be hydrogen where i is zero, R2 is alkyl containing 1 to 22 carbon atoms, phenyl, or phenyl substituted with one or more of alkyl containing 1 to 22 carbon atoms, halogen, and hydroxy, and when x is greater than 1, each occurrence of R2 can be the same or different and can be on the same or different ring carbon atoms, R3 is hydrogen, alkyl containing 1 to 22 carbon atoms, acyl containing 2 to 22 carbon atoms, phenyl, or phenyl substituted with one or more of alkyl containing 1 to 22 carbon atoms, halogen, and hydroxy; R4 is alkyl containing 1 to 22 carbon atoms, phenyl, or phenyl substituted with one or more of alkyl containing 1 to 22 carbon atoms, halogen, and hydroxy; and when y is greater than 1, each occurrence of R4 can be the same or different and can be on the same or different ring carbon atoms; R5 is hydrogen, alkyl containing 1 to 22 carbon atoms, phenyl, or phenyl substituted with one or more of alkyl containing 1 to 22 carbon atoms, halogen, or hydroxy; R6 is hydrogen or alkyl containing 1 to 22 carbon atoms, phenyl, or phenyl substituted with one or more of alkyl containing 1 to 22 carbon atoms, halogen, or hydroxy; or R6 can be -C (O) OR8 or -C (O) R8 wherein R8 is alkyl containing 1 to 22 carbon atoms; and R7 is phenyl or alkyl containing 1 to 22 carbon atoms. |
