Polymerized rosin is a modified products of gum rosin, contains abietic type acids. It has a series of excellent properties such as higher softening point, non-crystalline, good oxidation-resistance, high viscosity in organic solvent. Polymerized rosin is mainly used in ink, oil paint, rubber, adhesive, waterproof cloth, paper-making, emulsifying agent, etc.
Specifications:
Items | PR100 | PR115 | PR140 |
Appearance | transparent solid | transparent solid | transparent solid |
Color (Gardner) | 10 max | 10 max | 10 max |
Softening point (R & B ℃) | 90-100 | 110-120 | 135-145 |
Acid value(mg KOH/g) | 140-165 | 140-165 | 140-165 |
Undissolved content in alcohol | 0.030% max | 0.030% max | 0.030% max |
Dissolvable content in hot water | 0.20% max | 0.20% max | 0.20% max |
