Mitsubishi Chemical Industries Limited

Hajime Mori

Katsuhisa Kohyama

Katsuyuki Sakata

Katsuhiko Nakamura

Takemi Nakanome

Yoshiaki Suzuki

An aromatic polyester-polycarbonate resin which comprises a polymer material composed of repeating units of structures I-III: ##STR1## wherein X is a divalent organic radical and the divalent aromatic entities in structures I, II and III may be substituted by hydrocarbon residues.

Aromatic polyester-polycarbonate

An aromatic polyester-polycarbonate is prepared by

Method for manufacture of aromatic polyester-polycarbonate

Hydrocarbons are reacted with a tri-halogenoacetate of the formula ##EQU1## wherein X, Y and Z each represents a halogen atom and M represents a mono valent metal of group Ib to form the corresponding complexes, and then the thus formed complexes are decomposed to selectively separate the desired hydrocarbon components. The used tri-halogenoacetate also is recovered by the decomposition of the complexes.

Method for the separation of hydrocarbons

Hydrocarbons are reacted with a silver tri-halogenomethane sulfonate of the formula ##EQU1## wherein X, Y and Z each represents a halogen atom, to form the corresponding complexes, and then the thus formed complexes are decomposed to selectively separate the desired hydrocarbon components. The used silver tri-halogenomethane sulfonate also is recovered by the decomposition of the complexes.

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Yokohama, Japan

Hajime Mori