| 摘要 |
PROBLEM TO BE SOLVED: To provide a transparent thermoplastic resin excellent in low hygroscopicity and heat resistance and useful as an optical material. SOLUTION: The alicyclic hydrocarbon copolymer includes structures represented by general formula (1) and general formula (2). In the general formula, each of R<SP>1</SP>and R<SP>2</SP>is a hydrogen atom or a 1-3C alkyl group. COPYRIGHT: (C)2011,JPO&INPIT
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