| 摘要 |
PURPOSE:The titled resin and its modified product having a high softening point and a low melt viscosity, prepared by using a linear unsaturated hydrocarbon, a vinylidene group-containing cyclic hydrocarbon and a 9,10-dihydrodicyclopentadiene, and in case of the modified product, further adding an alpha,beta-unsaturated carboxylic acid. CONSTITUTION:Copolymerization is effected among a linear unsaturated hydrocarbon, a vinylidene group-containing cyclic hydrocarbon, a 9,10-dihydrodicyclopentadiene and its derivative. The purpose resin is obtained by effecting said copolymerization so that the polymer unit of said hydrocarbon is 20-98mol%, and the polymer unit of said 9,10-dihydrodicyclopentadiene is 80-2mol%. Furthermore, an alpha,beta-unsaturated carboxylic acid, its derivative or H is added to the copolymer to obtain a modified product. These products are useful as tackifying agents, tackifiers of adhesives, reactive tackifying agents, adhesives or additives for traffic paints. |
