Cyclic oligoformals in polycarbonates

Details Cyclic oligoformals in polycarbonates Cyclic oligoformals in polycarbonates

C - Chemistry, Metallurgy

08

L

C08L 69/00 (2006.01) C08L 71/00 (2006.01)

Patent

CA 2575321

The invention relates to thermoplastic moulded masses containing polycarbonate and at least one of said cyclic formals as additive to reduce the water-uptake of the polycarbonate and to improve the flow characteristics and the use of said moulded masses for the production of moulded bodies, in particular, optical data supports, such as, for example, compact discs, video discs, digital versatile discs and further singly- or multiply-writable and erasable optical data supports and the corresponding moulded body.

L'invention concerne des masses moulées thermoplastique contenant du polycarbonate et au moins un des formals cycliques de l'invention utilisé en tant qu'additifs, ce qui permet de réduire la consommation d'eau du polycarbonate et d'améliorer les caractéristique de fluidité ainsi que l'utilisation desdites masses moulées, ce qui permet de produire des corps moulés, en particulier des supports de données optiques, tels que des disques compacts, des disques vidéo, des DVD et d'autres supports de données optiques effaçables et inscriptibles une ou plusieurs fois, ainsi que des corps moulés correspondants.

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