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GENERAL PRODUCT DESCRIPTION
CAPA® 7203 is a low melting block co-polymer diol derived from caprolactone monomer and an aliphatic polycarbonate, and is terminated by primary hydroxyl groups. It has a molecular weight of 2000 and a typical OH value of 56 mg KOH/g.
It was specially developed for use in the production of TPUs having outstanding hydrolytic stability and ease of processing with low melting point and low viscosity.
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TYPICAL PROPERTIES
| Physical Form |
Soft wax
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| Mean Molecular Weight |
2000
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| Melting Point |
30°C-35°C
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| Hydroxyl Value |
56 mg KOH/g
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| Acid Value |
<0.25mg KOH/g
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| Water Content |
<0.02%
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| Viscosity at 60°C |
1000 mPa.s
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SOLUBILITY PARAMETERS
The solubility parameter (δ) is 9.34 - 9.43 (cal/cm3)½.
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