Poly(methyl vinyl ether), LUT-M20 & M40 NEW

PVME M 40 approx. 50% in water

Physical form Resin solution

Product specification

Non-volatile components %  50 ± 2 

 Apparent viscosity at 23 °C Pa · s 25 – 200

Iodine colour  ≤15

Further properties 

Density at 20 °C  g/cm3  approx. 1.03 

Glass transition temperature  of the solvent-free polymer  Tg (DSC) °C  approx. – 49  

Sensitivity to frost °C < 0

 PVME M 40 approx. 70% in ethanol

Physical form Resin solution

Product specification

Non-volatile components  % 70  ± 2 

Apparent viscosity at 23 °C Pa · s 50 – 250 

Iodine colour (DIN 6162) ≤ 15

Further properties Density at 20 °C   g/cm3    approx. 0.95 

Glass transition temperature  of the solvent-free polymer  Tg (DSC) °C approx. – 49

Flash point   °C < approx. 11 

Traces of insoluble matter may be present. These can be removed only from highly diluted solutions by filtration.

Solubility PVME M 40 is soluble in water, alcohols, glycols, esters, glycol esters, aromatic and chlorinated hydrocarbons. It is not soluble in aliphatic hydrocarbons.

Compatibility The PVME M 40 grades are homogeneously miscible with hard resins (modified and unmodified natural resins, Laropal® K 80 and Laropal A 81), cellulose nitrate, Acronal® 4 F, Acronal 4 L, Acronal 700 L, plasticisers (the Palatinol® grades).

Resistance towards

Acids   

Diluted mineral acids and organic acids do not attack PVME M 40. More concentrated mineral acids cause crosslinking or degradation. As with acidic resins, these can give rise to a red-brown discoloration. 

Alkalis    PVME M 40 is not attacked by alkalis.

 Light     Prolonged exposure to light can reduce the viscosity of solutions of PVME M 40. 

Heat      Prolonged exposure to temperatures exceeding 80 °C can adversely affect Lutonal M 40, unless a stabiliser has been added.