Mixture of substances containing compounds with vinyl groups and stabilizers

A process for inhibiting the premature polymerization of vinyl-containing compounds, said process comprising

• adding a stabilizer (B) in an effective amount to said vinyl-containing compounds before or during a purification or distillation
• wherein stabilizer (B) comprises
• (b1) a nitroxyl compound of a secondary amine having no hydrogen atoms on the α carbon atoms, whose vapor pressure at the boiling point of the lowest-boding vinyl-containing compound torn (A) is from 0.01 to 50% of the vapor pressure of the lowest boiling vinyl-containing compound (A), or
• a mixture of nitroxyl compounds of secondary amines having no hydrogen atoms on the α carbon atoms, in which the vapor pressure of the highest-boiling nitoxyl compound at the boiling point of the lowest-boiling vinyl-containing compound from (A) is from 0.01 to 50% of the vapor pressure of the lowest-boiling vinyl-containing compound from (A),
• (b2) a nitroxyl compound of a secondary amine having no hydrogen atoms on the α carbon atoms, whose vapor pressure at the boiling point of the highest-boiling vinyl-containing compound from (A) is less than 0.01% of the vapor pressure of the highest-boiling vinyl-containing compound from (A), or
• a mixture of nitroxyl compounds of secondary amines having no hydrogen atoms on the α carbon atoms, in which the vapor pressure of the lowest-boiling nitroxyl compound at the boiling point of the highest-boiling vinyl-containing compound from (A) is less than 0.01% of the vapor pressure of the highest-boiling vinyl-containing compound from (A),
• wherein (b1) and (b2) the vapor pressure of the nitroxyl compound and the vapor pressure of a vinyl-containing compound at the boiling point of the vinyl containing compound is taken as the reference, and optionally
• (b3) at least one aromatic nitro compounds and/or
• (b4) at least one iron compounds.

A process for inhibiting the premature polymerization of vinyl-containing compounds, said process comprising

• adding a stabilizer (B) individually or in at least two groups to said vinyl-containing compounds before or during a purification or distillation,
• wherein stabilizer (B) comprises
• (b1) a nitroxyl compound of a secondary amine having no hydrogen atoms on the α carbon atoms, whose vapor pressure at the boiling point of the lowest-boiling vinyl-containing compound from (A) is from 0.01 to 50% of the vapor pressure of the lowest-boiling vinyl-containing compound (A), or
• a mixture of nitroxyl compounds of secondary having no hydrogen atoms on the α carbon atoms, in which the vapor pressure of the highest-boiling nitroxyl compound at the boiling point of the lowest-boiling vinyl-containing compound from (A) is from 0.01 to 50% of the vapor pressure of the lowest-boiling vinyl-containing compound from (A),
• (b2) a nitroxyl compound of a secondary amine having no hydrogen atoms on the α carbon atoms, whose vapor pressure at the boiling point of the highest-boiling vinyl-containing compound from (A) is less than 0.01% of the vapor pressure of the highest-boiling vinyl-containing compound from (A), or
• a mixture of nitroxyl compounds of secondary amines having no hydrogen atoms on the α carbon atoms, in which the vapor pressure of the lowest-boiling nitroxyl compound at the boiling point of the highest-boiling vinyl-containing compound from (A) is less than 0.01% of the vapor pressure of the highest-boiling vinyl-containing compound from (A),
• wherein (b1) and (b2) the vapor pressure of the nitroxyl compound and the vapor pressure of a vinyl-containing compound at the boiling point of the vinyl containing compound is taken as the reference, and optionally
• (b3) at least one aromatic nitro compounds and/or
• (b4) at least one iron compounds.