Polycarbonates with good wettability

Details Polycarbonates with good wettability Polycarbonates with good wettability

C - Chemistry, Metallurgy

08

G

C08G 64/00 (2006.01) C08K 5/205 (2006.01) C08L 69/00 (2006.01)

Patent

CA 2591620

The invention relates to a polycarbonate which is characterised by the fact that the proportion of carbamate derivatives of formula (I), which are measured in the acetone extract of said polycarbonate resin, is 0,2 - 300 ppm (1), wherein R1 and R2 independently represent hydrogen or C1-C12-alkyl or R1 and R2 represent together C4-C12-alkylides, R3 and R4 independently represent hydrogen, C1-C12-alkyl or phenyl, or R3 and R4 with carbon atoms whereon they are connected, forming cyclohexyle or trimethylcyclohexyle, R5 represents hydrogen, C1-C12-alkyl, C5-C12-cycloalkyl, phenyl or cumyl.

L'invention concerne un polycarbonate caractérisé en ce que la fraction de dérivés de carbamate de la formule (1), mesurée dans l'extrait d'acétone de cette résine de polycarbonate, est de 0,2 à 300 ppm (1). Dans la formule (I), R1 et R2 représentent indépendamment un hydrogène ou alkyle C1-C12 ou R1 et R2 représentent ensemble un alkyldiène C4-C12, R3 et R4 représentent indépendamment un hydrogène, alkyle C1-C12 ou phényle, ou R3 et R4 avec l'atome de carbone auquel ils sont liés, forment un cyclohexyle un triméthylcyclohexyle, R5 représente un hydrogène, alkyle C1-C12, cycloalkyle C5-C12, phényle ou cumyle.

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