BecauseofC5petroleumresinhashighcolorhue,lowsofteningpointandhighwaxspot,itisnotsuitableastackifyingresinforhotmeltadhesiveandhotmeltpressuresensitiveadhesive.Thispapersummarizestheresearchstatusandde¡
Withtheincreaseoftoluenecontent,thesofteningpointandviscosityofpetroleumresindecreasegradually,andtheyieldincreasesgradually.Thesofteningpointandthereasonforthedecreaseinviscosityaremainlyduetothefact¡
Petroleumresin,ethylenecrackedC5fractionsasrawmaterials,bytheC5componentofthedieneandmonoenecationicpolymerization.Densityof1.0orso,solubleinorganicsolvents,suchasbenzene,toluene,xylene,themodelsolven¡
Withtheincreaseofsolventrecovery,thesofteningpointofpetroleumresindecreasesgradually.Thereasonoftheanalysisisthattherearetworeasons.First,withtheincreaseofrecoverysolvent,theconcentrationofpolymerizat¡
Aimingattheproblemsofhighchromaticity,poorthermalstabilityandunsatisfactorytackifyingeffectofpetroleumresininChina,thispaperputsforwardtheschemeofusingisopenteneandstyrenetomodify:First,byaddingisopen¡