Organic compounds -- part of the class 532-570 series – Organic compounds – Acyclic carbon bonded directly to three benzene rings or to...
Patent
1988-08-25
1992-09-29
Ivy, C. Warren
Organic compounds -- part of the class 532-570 series
Organic compounds
Acyclic carbon bonded directly to three benzene rings or to...
568638, 568640, 568718, 568723, C07C 1109, C07C 1110, C07C 4321
Patent
active
051515318
ABSTRACT:
Dihydric phenol suitable for the preparation of polycarbonates are represented by the following formula: ##STR1##
REFERENCES:
patent: 2506486 (1950-05-01), Bender et al.
patent: 4514334 (1985-04-01), Mark
patent: 4663434 (1987-05-01), Mark et al.
patent: 4740330 (1988-04-01), Wang et al.
Nakagawa Takashi
Sakamoto Shuji
Shigematsu Kazuyoshi
Covington Raymond
Idemitsu Kosan Co. Ltd.
Ivy C. Warren
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