申请人:Ham Edvard
公开号:US20090165215A1
公开(公告)日:2009-07-02
The invention relates to an auxiliary composition comprising
(A) from 5 to 95% by weight, based on the total composition, of at least one compound of formula (1a) or (1b)
Y
1
—X—Y
2
(1a)
A
1
A
2
N—OH (1b)
wherein X is a divalent aliphatic, aromatic, araliphatic or cycloaliphatic radical,
Y
1
and Y
2
are each independently of the other —OH, —CO—OR
1
, —NR
1
R
2
, —CO—NH—NR
1
R
2
or —NH—CO—NH—NR
1
R
2
, wherein R
1
and R
2
are each independently of the other hydrogen, C
1
-C
20
alkyl, C
1
-C
20
alkoxy, C
5
-C
24
cycloalkyl, C
5
-C
30
aryl or
C
6
-C
36
aralkyl, it being possible for the alkyl, alkoxy, cycloalkyl, aryl or aralkyl groups to be unsubstituted or substituted by one or more hydroxy, amino, sulfo or carboxyl groups or halogen atoms,
A
1
and A
2
are each independently of the other C
1
-C
20
alkyl or C
6
-C
36
aralkyl;
(B) from 0 to 95% by weight, based on the total composition, of one or more anionic or non-ionic surfactants or dispersants; and
(C) from 0 to 85% by weight, based on the total composition, of a solid, inorganic or organic acid;
the sum of the amounts of components A+B+C being 100% by weight in each case, and also to a method of improving the thermal stability of natural or synthetic textile fibre materials that are undyed, fluorescent whitened or dyed.