Patent ID: 9644043
Date: 2017-05-09
CPC Classifications: C08F

Claim:
1. A manufacturing method of a hydrogenated petroleum resin, comprising: thermally polymerizing a cyclopentadiene compound and a vinyl aromatic compound; hydrogenating a copolymer obtained by the thermally polymerizing in the presence of a hydrogenation solvent to perform a hydrogenation reaction; and removing volatile component(s) by separating a hydrogenated petroleum resin from a reaction mixture obtained by hydrogenating the copolymer so that a hydrogenated low-molecular-weight component remains in a range from 6 mass % to 10 mass % in the hydrogenated petroleum resin, wherein the removing volatile-component(s) is performed using a volatile-component emoval device comprising: a pressuring device configured to pressurize the reaction mixture; a heater configured to heat the reaction mixture pressurized by the pressuring device under pressure; a decompression unit comprising a decompression space, a pressure of which is reduced and into which the pressurized and heated reaction mixture is flowed; and a path member comprising a flow path through which the reaction mixture passes and provided in the decompression space so that the reaction mixture flowed in the decompression space of the decompression unit passes through the flow path.