| abstract |
(57) [Summary] [Structure] Thermal polymer of cyclopentadiene, or thermal copolymer of cyclopentadiene with α-olefin and / or monovinyl aromatic hydrocarbon, or hydride thereof, or those Ski wax containing a cyclopentadiene-based petroleum resin which is a mixture of [Effect] Excellent gliding performance can be maintained for a long period of time without being affected by usage conditions such as snow quality. In addition, it has no problems in practical use, and has extremely high overall performance that is economical. |