摘要 |
The cyclic carbonate trimer of 2,2-bis(4-hydroxyphenyl)-1,1-dichloroethylene is provided which can be employed as a flame retardant for a variety of thermoplastic organic polymers, such as high molecular weight bisphenol-A polycarbonate. This cyclic carbonate trimer also can be employed as a precursor for making high molecular weight phenyl dichloroethylene polycarbonate.
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