Copolycarbonates of phenolphthalein polycarbonates and other pol

Details Copolycarbonates of phenolphthalein polycarbonates and other pol Copolycarbonates of phenolphthalein polycarbonates and other pol

1976-12-27

1979-01-16

Schain, Howard E.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

528201, C08L 6900

Patent

active

041349369

ABSTRACT:
Novel copolycarbonates exhibiting generally improved impact resistance, clarity and flame resistance are prepared by blending a polycarbonate of a trityldiol such as phenolphthalein and a polycarbonate of another diol such as bisphenol-A under conditions of temperature and/or shear sufficient to cause reaction of the polycarbonates.

REFERENCES:
patent: 3035021 (1962-05-01), Howe
patent: 3036036 (1962-05-01), Howe
patent: 3036037 (1962-05-01), Howe
patent: 3036038 (1962-05-01), Howe
patent: 3036039 (1962-05-01), Howe
patent: 3106544 (1963-10-01), Laakso et al.
patent: 3106545 (1963-10-01), Laakso et al.
patent: 3106546 (1963-10-01), Laakso et al.
patent: 3128264 (1964-04-01), Laakso et al.
Bottenbruch, L., "Polycarbonates," Encyclopedia of Polymer Science and Technology, vol. 10, 1969, pp. 710-764, Interscience, Publ.
Schnell, Hermann, "Chemistry and Physics of Polycarbonates," 1964, at p. 127, Interscience, Publ.

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