myTechnical Documents
DYNACOLL® 7000 products are linear copolyesters with primary hydroxyl functionality and medium molecular weight. The 7300 series is a crystalline.
Details
Product Type
Applications
Producer
Other Applications
building block system
allowing the tailormade production of reactive hot melts (RHM)
Technical data
| Quantity | Value | Unit | Comment |
|---|---|---|---|
| Physical Properties | |||
| Density | 1.20 | g/ml | Temperature 23.0 °C@ |
| Molecular weight | 3500 | g/mol | |
| Viscosity | 3000 | cP | Temperature 130 °C@ |
| Thermal Properties | |||
| Glass transition Temperature | -25.0 | ºC | |
| flash point | >300 | ºC | |
| Softening point | 128 | ºC | |
| Melting point | 123 | ºC | |
| Mechanical Properties | |||
| Tensile strength | 35.0 | MPa | with MDI; OH:NCO=1:2.18; Ultimate |
| Elongation at break-MD | 400 | % | with MDI; OH:NCO=1:2.18 |
| Chemical Properties | |||
| Hydroxyl number | 27 - 34 | mg KOH/g | |
| Acidity number | <2.0 | mg KOH/g | |