HT 9110 Petroleum Hydrocarbon Resin C9 HT Series are low molecular weight thermoplastic aromatic resin produced from petroleum derived C9 fraction through thermal-polymerization technique. HT 9110 is a transparent granular solid with the color of yellow to light brown. HT 9110 has the properties of good solubility, mutual solubility, water resistance, insulation, excellent chemical stability over acid and alkali, good adhesive strength, and low heat conduction.