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US 2006/0149024 A1Published application
Polycarbonate and process for producing the same
AssigneeTeijin Limited
InventorsAya Ono, Kiyotsuna Toyohara, Hiroyoshi Minematsu, Yuuichi Kageyama
Life of this patent
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Abstract
A polycarbonate containing an ether diol residue producible from a polysaccharide and expressed by the following formula (1), and a diol residue expressed by the following formula (2) —O—(CmH2m)—O— (2) (here, m is an integer of 2 to 12), wherein said ether diol residue amounts to 65-98 wt. % of all the diol residues, and having a glass transition temperature of 90° C. or higher.
Claims10
A polycarbonate containing an ether diol residue producible from a polysaccharide and expressed by the following formula (1),
- and a diol residue expressed by the following formula (2)
- —O—(CmH2m)—O— (2)
- (here, m is an integer of 2 to 12), wherein said ether diol residue amounts to 65-98 wt. % of all the diol residues, and having a glass transition temperature of 90° C. or higher.
Dependencies are inferred from the claim text.