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Adhesives Ingredients

DESMODUR® 44MC LIQUID

Technical DataSheet | Supplied by Covestro

Desmodur® 44MC LIQUID by Covestro is a monomeric diphenylmethane 4,4' diisocyanate (MDI) with a molecular weight of 250 [g/mol]. It is a white to pale yellow solid. It is sensitive to moisture and reacts with water to form insoluble urea derivatives and carbon dioxide. Contact with air, especially if accompanied by simultaneous exposure to light, accelerates yellowing. It is therefore advisable to store liquid Desmodur® 44MC LIQUID under dry nitrogen. Desmodur® 44 MC LIQUID is sensitive to heat and likely to dimerization. It is used to produce polyurethanes.

DESMODUR® 44MC LIQUID Product details

Product Type
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Chemical Composition
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Physical Form
Solid
Appearance
Yellow
Product Status
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Food contact approval
xx

DESMODUR® 44MC LIQUID Properties

Property

Value & Unit
Test Condition
Test Method
Purity ( mol. wt. 250 ), MDI-01-01
xxxxxx % by wt.
Viscosity @ 40°C, MDI-01-02
xxx mPa.s
Density @ 40°C, DIN 51757
xxxx g/cm3
Freezing point, MDI-01-17
xxxxxx °C
NCO-content (theoretical)
xxxx % by wt.
Phenylisocyanate-content, MDI-01-09
xxxx ppm
Specific heat (cp)
xxxx kJ/kg*K
Heat of fusion
xxx J/g
Hydrolysable chlorine,MDI-01-04
xxxxxxx ppm
4,4'-isomer content, MDI-01-06
xxxxxx % by wt.
2,4'-isomer content, MDI-01-06
xxxxx % by wt.
Uretdione (dimer) content, MDI-01-08
xxxxx % by wt.
Last edited Dec 18, 2017
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