Norbornene derivative and norbornene polymer obtained therefrom through ring-opening polymerization
CA 2459384 A1 · Owner: Miyaki, Nobuyuki · Inventors: Fukuhara, Seiji; Ootsuki, Toshihiro; Miyaki, Nobuyuki
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A novel norbornene derivative represented by the following general formula (1m). The norbornene derivative is subjected to ring-opening polymerization or subjected to ring-opening polymerization and subsequently to hydrogenation. Thus, a ring-opening polymerization polymer or a product of hydrogenation thereof can be obtained which can especially have significantly reduced birefringence. (1m) In the formula, at least one of R1 to R4 is a group selected between an aromatic-ring-containing group represented by the following general formula (1-1) and an aromatic-ring-containing group represented by the general formula (1-2): wherein one of RA RB, and Z is a , group represented by the …
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
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- Filed October 8, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 8, 2022.
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