Reacting polycarbonate resin with aryl chlorocarbonate to improv

Details Reacting polycarbonate resin with aryl chlorocarbonate to improv Reacting polycarbonate resin with aryl chlorocarbonate to improv

1982-10-25

1984-07-17

Anderson, Harlod D.

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

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

528171, 528198, C08G 6362

Patent

active

044607520

ABSTRACT:
A process for the preparation of polycarbonates from diphenols and/or chlorocarbonic acid esters thereof and phosgene by the two-phase boundary process wherein said polycarbonate is reacted with aryl chlorocarbonate is disclosed; the reaction products are noted for their improved ageing and hydrolysis characteristics which render them useful as thermoplastic molding compositions.

REFERENCES:
patent: 3475373 (1969-10-01), Jackson, Jr. et al.
patent: 4059565 (1977-11-01), Yoshizaki et al.
patent: 4097457 (1978-06-01), Megumi et al.
patent: 4230548 (1980-10-01), Adelmann et al.

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