C5 Aliphatic Hydrocarbon Tackifier Resin
CAS Number: 68131-77-1
C5 Aliphatic Hydrocarbon Resin is a thermoplastic tackifier polymerized from C5 piperylene and isoprene fractions obtained from steam cracking of naphtha. It provides excellent compatibility with natural rubber, SIS, and SBS block copolymers, significantly boosting tack and peel adhesion in hot-melt and solvent-based PSA formulations. Its light color, good thermal stability, and low odor make it preferred for labeling, packaging, and hygiene product adhesives.
Technical Specifications
| color | ≤2 (Gardner) |
| appearance | Pale yellow to water-white solid |
| meltViscosity | 100–500 mPa·s (160 °C) |
| bromine number | 5–20 g/100g |
| softeningPoint | 80–110 °C (grade dependent) |
Applications
- Hot-melt pressure-sensitive adhesives (HMPSA)
- Hygiene product construction (diapers, sanitary napkins)
- Packaging tape and label adhesives
- Book binding adhesives
- Rubber compounding
Key Features
- Excellent compatibility with SIS, SBS, and natural rubber
- Light color and low odor
- Good thermal stability in hot-melt processing
- Wide softening point range available
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CAS Number
68131-77-1
Category
Adhesive / Sealant AdditivesAvailability
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