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High thermal stability with continuous use temperature up to 120 °C.
Excellent adhesion to polar substrates including PET, PA, and aluminum foil.
Low melt viscosity enabling efficient processing in extrusion coating and hot-melt applications.
Good hydrolytic resistance due to optimized aliphatic–aromatic copolyester backbone.
Compliant with EU food contact regulation (EU) No. 10/2011 for indirect food contact applications.
Hot-melt adhesive for flexible packaging lamination.
Extrusion coating binder for metallized film structures.
Sealant layer in retortable pouches requiring high-temperature resistance.
Adhesive component in multi-layer coextruded barrier films.
Bonding resin for automotive interior trim composites.
| Chemical Type | Aliphatic–aromatic copolyester |
| Product Form | Pellets |
| Appearance | Off-white to light yellow granules |
| Melt Flow Rate (MFR, 230 °C / 2.16 kg) | 12–16 g/10 min |
| Softening Point (Vicat, 50 N) | 88–92 °C |
| Density (23 °C) | 1.22–1.24 g/cm³ |
| Moisture Content (max.) | 0.15 wt% |
| Primary Applications | High-performance hot-melt adhesives & extrusion coating resins |
Q1: What is the primary function of Dynacoll S1402 in adhesive and coating formulations?
A: Dynacoll S1402 functions primarily as a reactive thermoplastic binder and compatibilizer, enhancing adhesion to polar substrates (e.g., PET, PA, aluminum) while improving melt viscosity control and thermal stability in hot-melt and solvent-based systems.
Q2: Is Dynacoll S1402 suitable for food-contact applications?
A: Dynacoll S1402 is designed for use in adhesive systems intended for indirect food contact, subject to final formulation evaluation and compliance with applicable regional regulatory requirements. End-use approval must be confirmed by the finished product manufacturer.
Q3: How does Dynacoll S1402 differ from standard polyesters used in hot-melt adhesives?
A: Unlike conventional linear polyesters, Dynacoll S1402 is a specially engineered copolyester with tailored polarity and chain flexibility, offering improved low-temperature flexibility, enhanced cohesive strength, and better compatibility with both polar and non-polar polymers such as EVA or polyolefins.
Q4: What processing methods are recommended for incorporating Dynacoll S1402 into formulations?
A: Dynacoll S1402 is typically incorporated via melt compounding or hot-melt mixing at temperatures between 140 °C and 180 °C. It dissolves readily in common organic solvents such as ethyl acetate, toluene, or MEK, making it suitable for solvent-based adhesive production.
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