Polycarbonate composition having resistance to high heat distort

Details Polycarbonate composition having resistance to high heat distort Polycarbonate composition having resistance to high heat distort

1978-02-28

1979-12-25

Pertilla, Theodore E.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

260DIG24, 568721, C08G 6362

Patent

active

041806514

ABSTRACT:
Resistance to high heat distortion is imparted to high molecular weight aromatic polycarbonate resins by controlling the degree to which particular diphenols are halogenated so that there are obtained either highly pure dihalogenated diphenols or predetermined statistical mixtures comprising predominantly mono- and dihalogenated diphenols together with some unreacted diphenol.

REFERENCES:
patent: 3422065 (1969-01-01), Wulff et al.
patent: 3437637 (1969-04-01), Matzer
patent: 4075119 (1978-02-01), Schmidt et al.

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