C5/C9 Copolymerized hydrocarbon resin is thermoplastic resin ,C5.C9 fraction of petroleum by product of decomposition with processing pre -treatment ,polymerization and distillation .

Advantage:

1.Low acid value

2.Good miscibility waterproof ehnol resisntance and chemcial resisntance and other characteristics of acid resistance

3.Chemical stability in acid -bases

4.Good thermal stability

3.C5/C9 has good solubility in organic solvents especially inoil solvent,as well as good compatibility with other resins.It also has brittle ,increasing viscosity cohesiveness and plasticity .Generally ,it is not used alone .but used as accelerant ,regular and mosiifer together with other resins.