Flame retardant polycarbonate having improved critical thickness

Details Flame retardant polycarbonate having improved critical thickness Flame retardant polycarbonate having improved critical thickness

1976-05-18

1977-08-23

Pertilla, Theodore E.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260DIG24, C08G 6362

Patent

active

040439801

ABSTRACT:
Polycarbonates are provided having improved critical thickness values based on an aromatic diphenol, a halogenated dihydric phenol and an aromatic diphenol thioether. By incorporating an effective amount of the aromatic thiodiphenol based on the total diphenol content into the polymer the critical thickness and flame retardant characteristics of the polycarbonate is substantially improved.

REFERENCES:
patent: 3023101 (1962-02-01), Ossenbrunner
patent: 3398212 (1968-08-01), Jackson, Jr. et al.
patent: 3437631 (1969-04-01), Cleveland
patent: 3912688 (1975-10-01), Schiller

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