Cov txheej txheem kev npaj ntawm C9 roj av resin yog raws li nram no: cov ntaub ntawv raw yog pretreated kom tshem tawm (bis) cyclopentadiene thiab isoprene, Roj av Resin kom tau raw cov ntaub ntawv nrog ib tug loj feem ntawm ntau tshaj 50%, Petroleum Resin thiab ces ntxiv ib tug diluent aromatic hydrocarbon. nyob rau hauv kev tiv thaiv ntawm nitrogen, Petroleum Resin Ces ntxiv cov catalyst AlCl3. Khaws qhov kub ntawm 25, Petroleum Resin maj mam ntxiv cov concentrated piperylene thiab comonomer, tswj tus nqi pub kom cov tshuaj tiv thaiv kub tsis tshaj 40, Roj av Resin thiab cov ntsiab lus hauv lub reactor yog 45% ~ 50%, thiab lub sij hawm polymerization yog 1 ~ 2 hnub. Tom qab polymerization, Roj av Resin cov khoom raug xa mus rau alkali scrubber. Sab saum toj ntawm kem yog decatalyzed polymerization kua, Petroleum Resin uas raug xa mus rau lub tshuab nqus dej kom tshem tawm cov kua alkali thiab residual catalyst hauv cov kua polymerization. Sab saum toj ntawm cov dej kem mus rau lub stripper thiab lub tshuab nqus tsev distillation ntauwd, Distilling diluent, Petroleum Resin unpolymerized Cheebtsam thiab oligomers kom tau siab molecular hnyav khoom roj av txheej roj.
Xaiv cov comonomers sib txawv tuaj yeem txhim kho kev ua haujlwm ntawm cov resin thiab tau txais cov resins tshwj xeeb sib txawv. Piv txwv li, copolymerization nrog methyl styrene tuaj yeem txhim kho cov khoom nplaum ntawm cov resin; Petroleum Resin copolymerization nrog isobutylene tuaj yeem tau cov resins nrog nqaim txheeb ze molecular hnyav faib; Petroleum Resin copolymerization nrog cyclopentene tuaj yeem tau cov resins nrog siab softening point. Feem ntau siv comonomers yog cov txiv neej anhydride, terpenes, Petroleum Resin aromatic compounds.
