초록 ▼

Process for the preparation of soluble synthetic resins which are free from monomeric amines and have NH bonds by reaction of (A) compounds which carry epoxide groups with (B) polyamines, in which the reaction is carried out in a homogeneous phase system in the absence or presence of resin solvents,

Process for the preparation of soluble synthetic resins which are free from monomeric amines and have NH bonds by reaction of (A) compounds which carry epoxide groups with (B) polyamines, in which the reaction is carried out in a homogeneous phase system in the absence or presence of resin solvents, the polyamine (B) being employed in excess and the resulting reaction product being freed from the unreacted polyamine portions by circulatory distillation in the presence of a resin solvent with the addition of water and supply of heat. The synthetic resins thus prepared are employed as self-crosslinking binders and in combination with crosslinking agents or in modified form for coatings or impregnations.

대표청구항 ▼

A process for the preparation of a soluble synthetic resin which is free from monomeric amines and contains NH bonds by reaction of (A) a compound which carries epoxide groups with (B) a polyamine, which comprises carrying out the reaction in a homogeneous phase system in the absence or presence of

A process for the preparation of a soluble synthetic resin which is free from monomeric amines and contains NH bonds by reaction of (A) a compound which carries epoxide groups with (B) a polyamine, which comprises carrying out the reaction in a homogeneous phase system in the absence or presence of a resin solvent, the polyamine (B) being employed in excess and the resulting reaction product being freed from unreacted portions of the polyamine by recycling codistillation in the presence of a resin solvent with the addition of water and supply of heat.