Patent ID: 7449532
Filing Date: 2008-11-11
Classification: B29C,B29K,C08G

Abstract:
1. A cycloolefin copolymer obtained by ring opening polymerization, comprising a structural unit represented by general formula (1) and exhibiting a single peak in a derivative differential scanning calorimetry curve obtained by differential scanning calorimeter (DSC), having a temperature width of the rising part in the peak of 35° C. or below, and having a glass transition temperature (Tg) of 110° C. or above, wherein the cycloolefin copolymer comprises a copolymer of 8-methyl-8-methoxycarbonyltetracyclo[4.4.0.1 2,5 .1 7,10 ]-3-dodecene with tricyclo[4.3.0.1 2,5 ]deca-3,7-diene: wherein m is 0 (zero), 1 or 2, p is 0 (zero) or 1, X independently represents a group represented by formula: —CH═CH— or a group represented by formula: —CH