Ụlọ ọrụ mmanụ ụgbọala n'ụwa taa na-etowanye ngwa ngwa. Site na ngwa ahịa, a na-eji resin mmanụ ala mmanụ ala. Taa, m ga-ekwu maka comonomers na resin petroleum iji nye gị nghọta zuru oke na nke akọwapụtara nke resins mmanụ.
Nke a bụ n'ihi na carbon olefins dị iche iche na-ekere òkè na mbufe yinye na mmeghachi omume polymerization ma mepụta carbon cations kwụsiri ike. N'otu oge ahụ, mmanụ mmanụ, ọ na-enwekwa mmetụta nke ịkwụsị mmeghachi omume polymerization, n'ihi na ọ ga-ejide HCl na-emepụta site na kọntaktị n'etiti AlCl3 na piperylene, petroleum resin si otú a na-ebelata mmetụta catalytic nke HCl, mmanụ mmanụ na nhazi ahụ na-emepụta. ịdị arọ molekụla dị elu, polymers soluble na-adịghị mma.
Ndị monoolefin nwere ụdị resin petroleum emelitere ma gbanwee bụ ụfọdụ monoolefin nwere atom carbon nke atọ. Ka ọdịnaya nke monoolefins ndị a na-abawanye, mmanụ mmanụ na-eme ka resin dịkwuo mma. Ọdịnaya monoolefin dị ala, mmanụ mmanụ resin na-esikwu ike na resin na ịdị elu nke ịdị arọ molekụla, mmanụ mmanụ na-eme ka ihe ndị na-esi ísì ụtọ polymer na-esiwanye ike. Na mgbakwunye, cyclopentene na ọrụ yiri aromatic hydrocarbon solvents, Petroleum Resin nwere ike ịkwalite nguzobe nke nnukwu agbaze na polymer soluble.
