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GENERAL PRODUCT DESCRIPTION
CAPA® 2303 is a standard grade linear polyester diol derived from caprolactone monomer terminated by primary hydroxyl groups. It has a molecular weight of 3000 and a typical OH value of 37 mg KOH/g.
The product has been specially developed as an intermediate for the production of polyurethane elastomers with high tear strength. It is also recommended for the production of high quality polyurethane coatings and rapid crystallising adhesives.
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TYPICAL PROPERTIES
| Physical Form |
White waxy solid
|
| Mean Molecular Weight |
3000
|
| Melting Point |
50°C-60°C
|
| Hydroxyl Value |
37 mg KOH/g
|
| Acid Value |
<0.25mg KOH/g
|
| Water Content |
<0.02%
|
| Viscosity at 60°C |
1100 mPa.s
|
DENSITIES
The typical specific gravity (SG) of the material, measured at 55oC c.f. water at 20oC, is 1.070.
SOLUBILITY PARAMETERS
The solubility parameter (δ) is 9.34 - 9.43 (cal/cm3)½.
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