Process for the preparation of modified polycarbonate molding co

Details Process for the preparation of modified polycarbonate molding co Process for the preparation of modified polycarbonate molding co

1981-11-09

1983-01-04

Bleutge, John C.

Plastic and nonmetallic article shaping or treating: processes

Carbonizing to form article

Agglomeration or accretion

20415914, 20415918, C08J 328

Patent

active

043671861

ABSTRACT:
This development is concerned with an improved process of preparing polycarbonate molding compositions and molded articles having superior hydrolysis resistance, stress crack resistance and flame retardancy, by thermoplastically processing a partially crosslinked aromatic polycarbonate. A crosslinkable aromatic thermoplastic polycarbonate is subject to irradiation to cause crosslinking on its surface such that between about 5 and 50 wt. % of the polymer is crosslinked and it is then thermoplastically processed. This partially crosslinked polycarbonate may be blended with uncrosslinked thermoplastic aromatic polycarbonate or known flame retardant agents. This development is also concerned with the compositions or articles so produced.

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patent: 4212774 (1980-07-01), Idel
The Condensed Chemical Dictionary, Ninth Edition, p. 856 revised by Gessner G. Hawley.
P. 62 of the Schnell monograph-Chemistry and Physics of Polycarbonates by H. Schnell.

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