Blends of high MW branched polycarbonate with a lower MW polycar

Details Blends of high MW branched polycarbonate with a lower MW polycar Blends of high MW branched polycarbonate with a lower MW polycar

1993-11-22

1996-04-16

Buttner, David

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

Synthetic resins

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

525469, 2643281, 26432817, C08L 6900

Patent

active

055083595

ABSTRACT:
Improved injection molded thin-wall corner parts are prepared using carbonate polymer blend compositions where an amount of a higher molecular weight branched carbonate polymer component (HMWB PC) is combined with a different second, lower molecular weight carbonate polymer component. A HMWB PC component is selected which is homogeneously dispersible in a blend with the second component. The carbonate polymer blends suitable for use according to the present invention have surprisingly improved combinations of physical properties and processability and provide improved injection molded parts.

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