Kachigawo kakang'ono ka C9 kamakhala ndi mankhwala onunkhira a hydrocarbon monga vinyl toluene, indene, methylstyrene, Petroleum Resin etc. polima polar ndi bwino, Petroleum Resin mwachitsanzo Ikhoza kupititsa patsogolo kugwirizana ndi EVA resin. Chifukwa cha mawonekedwe a utomoni wa aliphatic ndi zonunkhira, Petroleum Resin imakhala ndi kusungunuka kwabwino mu zosungunulira zosiyanasiyana ndipo imathandizira kukana kutentha komanso kukana kwa nyengo kwa ma resin aliphatic.
C5/C9 utomoni wa petroleum umapangidwa ndi zomwe zimachitika kutentha kwa firiji. Kusintha kuyanjana kwa C5 ndi C9 kumatha kupeza ma resin okhala ndi zinthu zosiyanasiyana. Kukwera kwa chiŵerengero cha C9, Petroleum Resin kumapangitsa kuti malo ochepetsetsa komanso kukhuthala kwa utomoni kukwezeke komanso kutsika mtengo wa bromine. Kapangidwe ka C5/C9 copolymer resin,Petroleum Resin kupatula kufunikira kowonjezera kagawo kakang'ono ka C9 kuti mupeze gawo la C9,Petroleum Resin njirayo ndi yofanana ndi C5 aliphatic petroleum resin.
Mafuta a petroleum resin: Pogwiritsa ntchito zomatira zotentha zotentha ndi matepi omatira, zomata zamafuta a petroleum zimayikidwa pamtundu wa utomoni wamafuta, Utomoni wamafuta makamaka matewera amapepala (otayidwa) ndi zinthu zaukhondo zimafunikira ma resin owonekera komanso opanda utoto. Mafuta a petroleum resin adapangidwa. The hydrogenation wa utomoni ndi kupasuka utomoni mu zosungunulira inert ndi hydrogenate pansi madzi gawo zinthu. Chothandizira chomwe chimagwiritsidwa ntchito kwambiri ndi hydrogenation ndi chothandizira cha nickel.
