摘要:
Stable preparations of modified aminoplast precondensates are provided, which are prepared by reacting aminoplast precondensates containing alkyl-ether groups with basic polyamides. The polyamides are made from polymeric unsaturated acids and polyalkylene polyamines. The reaction is carried out in the presence of organic solvents at 20* to 100* C. Not later than after completion of the reaction, it is ensured that a sample of the reaction mixture has a pH-value of 2 to 8 after dilution with water. The resulting reaction products are soluble in water and are useful in the textile industry e.g. for rendering wool nonfelting. Especially suitable are the preparations when applied in combination with a dyeing process.
摘要:
A stable preparation of reaction products is provided which is prepared by first reacting a liquid polyglycidyl ether of a polyphenol with an aliphatic di-primary diamine and thereafter further reacting the resulting adduct with an epoxy compound. The ratio of epoxide group equivalents to amino group equivalents in the first stage is 1:3 to 5.5 and in the second stage 1:2 to 5. The preparations are useful in the textile industry e.g. for rendering wool non-felting. Especially suitable are the preparations when applied in combination with a dyeing process.