Sabic Innovative Plastics IP B.v.

Han Vermeulen

Hans-Peter Brack

Jan Henk Kamps

Hans Looij

Jan Pleun Lens

Edward Kung

Dennis James Patrick Maria Willemse

Bernd Jansen

Dennis Willemse

Marianne Guyader

Bernard Jansen

A polycarbonate is provided that contains repeat units derived from isosorbide and a residue derived from an activated diaryl carbonate. The polycarbonate hasH-NMR peaks associated with the repeat units derived from isosorbide. The polycarbonate contains no more than a maximum allowable amount of sorbitol-derived color bodies. If these color bodies are present in the polycarbonate it has aH-NMR peak associated with the color bodies. The maximum allowable amount of color bodies are present when the integrated area of theH-NMR peak associated with the color bodies divided by the integrated areas of theH-NMR peaks associated with the repeat units derived from isosorbide is 0.025.

Method of making isosorbide polycarbonate

Disclosed herein is a polycarbonate comprising a terminal olefin group of the formula wherein Ris a C-Chydrocarbon that can be unsubstituted or substituted with a halogen, olefin, ether, ketone, or C-Cpolyoxyalkylene functionality in which the alkylene groups contain 2 to 6 carbon atoms, Rto Rare each independently a hydrogen or a C-Chydrocarbon that can be unsubstituted or substituted with a halogen, olefin, ether, ketone, or a C-Cpolyoxyalkylene functionality in which the alkylene groups contain 2 to 6 carbon atoms, and optionally wherein any two of Rto Rtogether form a monocyclic, bicyclic, or tricyclic ring system optionally substituted with a heteroatom in each ring.

Polycarbonate resins method of manufacture, and articles formed therefrom

A method of increasing the branching and polydispersity of a polycarbonate includes the steps of: (a) including in the polycarbonate at least one species of an alkyl substituted monomer, and (b) treating the polycarbonate at an elevated temperature and for a sufficient time to increase the branching and polydispersity relative to an otherwise equivalent polycarbonate without alkyl substituents.

Branched polycarbonate resins and processes to prepare the same

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Hoeven, Netherlands

Han Vermeulen