Process for the manufacture of a mixture of polycarbonates...

Details Process for the manufacture of a mixture of polycarbonates... Process for the manufacture of a mixture of polycarbonates...

C - Chemistry, Metallurgy

08

L

400/4401, 400/56

C08L 69/00 (2006.01) C08J 3/00 (2006.01) C08L 25/08 (2006.01)

Patent

CA 1173587

Abstract of the Invention The invention relates to a process for the manufacture of a mixture of a polycarbonate and a styrene- containing polymer whereby the polycarbonate present in solution is initially brought into contact with a precipita- ting agent. The solvent and the precipitating agent are subsequently separated from the precipitated solid material to prepare a polycarbonate having residual moisture of more than 1 and less than 50 percent by weight relative to the polycarbonate, and where the resultant product with a residual moisture is mixed with the styrene-containing polymer at temperatures above the softening range of the components removing volatile components The claimed mixtures are suitable for the manufacture of molded parts for cars, bottles and appliances.

396902

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