Amino-plastic resins intended for the improvement of cellulosed fibres and their application
AssigneeSociete Francaise Hoechst
InventorsWilhelm Didier, Loison Sylvie, Blanc Alain
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Abstract
Amino-plastic resins soluble in water of which the nitrogenous derivative is chosen from the group comprising urea, 1,3-dimethyl-urea, ethyleneurea, 4,5-dihydroxy-ethyleneurea or their mixtures and the aldehyde derivative is a mixture of from 1 to 99% by weight of glyoxal and from 99 to 1% by weight of glyoxal monoacetal of formula (RO).sub.2 CH--CHO; R=C.sub.1 -C.sub.4 alk, their ethers and their applications in particular with cellulosed fibre treatment.
Claims14
Amino-plastic resins free of formaldehyde and soluble in water, characterised in that the nitrogenous derivative is chosen from the group comprising urea, 1,3-dimethyl-urea, ethyleneurea, 4,5-dihydroxy-ethyleneurea or their mixtures and in that the aldehyde derivative is a mixture of from 1 to 99% by weight of glyoxal and of from 99 to 1% by weight of glyoxal monoacetal of general formula (I),
- (RO).sub.2 CH--CHO (I)
- in which R represents a primary or secondary C.sub.1 -C.sub.4 alkyl group, as well as, if desired, their etherified derivatives with C.sub.1 -C.sub.4 alkanol.
An amino-plastic resin suitable for finishing cellulosic textiles, consisting essentially of a reaction product of
- a nitrogenous compound selected from the group consisting of urea, 1,3-dimethyl-urea, ethyleneurea, 4,5-dihydroxy-ethyleneurea and mixtures thereof, and
- a mixture of glyoxal and a glyoxal monoacetal of the formula
- (RO).sub.2 CH--CHO (I)
- wherein R is a primary or secondary C.sub.1 -C.sub.4 alkyl group, or an etherified derivative thereof with C.sub.1 -C.sub.4 alkanol, the mole ratio of said nitrogenous compound to glyoxal being in the range of 1-2.7.
Dependencies are inferred from the claim text.