| 摘要 |
The invention relates to thermoplastic polycarbonate molding compositions which are rendered resistant to gamma-radiation by incorporating therewith about 0.1 to about 5 percent by weight of a stabilizing agent selected from the group consisting of <IMAGE> I. <IMAGE> II. wherein R is a hydrogen or a halogen atom or a C1-C10 alkyl, a C6-C10 alkyl, a C6-C10 aryl, C1-C22 acyl, C6-C18 alkylaryl or a C4-C10 cycloalkyl radical, n is an integer of at least 1 and preferably 1 to about 100 and Y and Y1 independently are a hydrogen atom, a C6-C10 aryl, C1-C10 alkyl or a C6-C18 alkylaryl or a C6-C18 arylalkyl radical or <IMAGE> III. or <IMAGE> IV. or <IMAGE> V. or <IMAGE> VI. wherein m is 1 or 3-6, R1, R2 and R3 independently are a hydrogen atom or a C1-C10 alkyl, C6-C10 aryl or a C6-C18 alkylaryl radical.
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