ʻO ka hapa C9 i haʻihaʻi nui ʻia nā pūhui hydrocarbon aromatic unsaturated e like me vinyl toluene, indene, methylstyrene, Petroleum Resin etc. Hoʻokomo ʻia ʻo C9 i loko o ka mea C5, Petroleum Resin a me ka hoʻohālikelike ʻana o ka resin petroleum C5/C9 i loaʻa ma ka copolymerization o nā mea ʻelua me Hoʻomaikaʻi ʻia nā polymers polar, Petroleum Resin no ka laʻana Hiki iā ia ke hoʻomaikaʻi nui i ka hoʻohālikelike ʻana me ka resin EVA. Ma muli o nā hiʻohiʻona o nā aliphatic a me nā resins aromatic, Petroleum Resin he mea hiki ke hoʻoheheʻe maikaʻi ʻia i nā ʻano mea hoʻoheheʻe a hoʻomaikaʻi i ka pale wela a me ke kū ʻana o ka wā aliphatic resins.
Hoʻopuka ʻia ka resin petroleum C5/C9 e ka pane ʻana i ka lumi wela. ʻO ka hoʻoponopono ʻana i ka ratio hoʻohālikelike o C5 a me C9 hiki ke loaʻa nā resins me nā waiwai like ʻole. ʻO ke kiʻekiʻe o ka ratio o C9, Petroleum Resin ʻoi aku ka kiʻekiʻe o ka wahi palupalu a me ka viscosity o ka resin a me ka haʻahaʻa o ke kumukūʻai bromine. ʻO ke kaʻina hana o C5/C9 copolymer resin, Petroleum Resin koe wale no ka pono e hoʻonui i ka C9 fraction pretreatment no ka loaʻa ʻana o ka hakina C9 pili, Petroleum Resin ke ʻano like me ka C5 aliphatic petroleum resin.
Hydrogenated petroleum resin: Me ka hoʻohana ākea o nā mea hoʻoheheʻe wela a me nā lipine adhesive, ua kau ʻia nā koi kiʻekiʻe o ka Petroleum Resin i ke kala o nā resins petroleum, Petroleum Resin ʻoi aku ka nui o nā diapers pepa (disposable) a me nā huahana maʻemaʻe e koi ai i nā resins petroleum ʻikeʻole. Ua hoʻokumu ʻia ka resin petroleum hydrogenated. ʻO ka hydrogenation o ka resin e hoʻoheheʻe i ka resin i loko o kahi mea hoʻoheheʻe inert a hydrogenate ma lalo o nā kūlana wai. ʻO ka mea hoʻoheheʻe hydrogenation maʻamau i hoʻohana ʻia ʻo ia ka nickel-based catalyst.