Blends of phenolphthalein polycarbonates with...

C - Chemistry – Metallurgy – 08 – L

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400/3037, 400/44

C08L 69/00 (2006.01) C08L 51/04 (2006.01)

Patent

CA 1122344

ABSTRACT Blends of ar,ar'-dihydroxytrityl polycarbonates, such as a copolycarbonate of phenolphthalein and bisphenol- -A, with a rubber-modified monovinylidene aromatic copoly- mer, such as an ABS resin, exhibit improved impact strength, melt flow properties, resistance to stress cracking and heat resistance. Such blends are particularly useful in the manufacture of molded parts which must be exposed to high temperatures during manufacture and/or use.

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