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GENERAL PRODUCT DESCRIPTION
CAPA® 2101A is a premium grade linear polyester diol derived from caprolactone monomer, terminated by primary hydroxyl groups. It has a molecular weight of 1000 and a typical OH value of 112 mg KOH/g.
The product has been specially developed as an intermediate for the production of high-grade polyurethane elastomers, but offers lower reactivity to isocyanates than either CAPA® 2100 or 2100A, the other 1000 mol.wt. products in the CAPA® range. It will form stable prepolymers with MDI. It can also be used in polyurethane adhesive, surface coating and flexible foam applications, and as a resin intermediate.
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TYPICAL PROPERTIES
| Physical Form |
White paste
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| Mean Molecular Weight |
1000
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| Melting Point |
30°C-40°C
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| Hydroxyl Value |
112 mg KOH/g
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| Acid Value |
<0.05 mg KOH/g
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| Water Content |
<0.02%
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| Viscosity at 60°C |
150 mPa.s
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DENSITIES
The typical specific gravity (SG) of the material, measured at 55°C c.f. water at 20°C, is 1.072.
SOLUBILITY PARAMETERS
The solubility parameter (δ) is 9.34 – 9.43 (cal/cm3)½.
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