Polysiloxanes having polyether quat functions

Details Polysiloxanes having polyether quat functions Polysiloxanes having polyether quat functions

1999-11-11

2001-06-05

Moore, Margaret G. (Department: 1712)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

From silicon reactant having at least one...

C528S029000, C528S038000, C556S423000, C556S425000, C428S365000, C428S391000, C008SDIG001, C008S115600, C008S115640, C008S09410R, C008S128300

Reexamination Certificate

active

06242554

ABSTRACT:

RELATED APPLICATIONS
This application claims priority to German application Nos. 198 52 621.0, filed Nov. 14, 1998, and 199 41 585.4, filed Sep. 1, 1999, herein incorporated by reference.
BACKGROUND OF THE INVENTION
1. Field of the Invention
The invention relates to novel polyether-quaternary organosiloxanyl derivatives, to the preparation of these compounds and to their use in formulations for improving the surface properties of fabrics and fibers.
2. Description of the Related Art
DE 37 19 086 C1 describes quat groups but no polyether fractions. Consequently, the hydrophilicity of the compounds is low.
U.S. Pat. No. 5,098,979 and U.S. Pat. No. 5,807,956 describe siloxane polyether quat compounds in which the quaternary ammonium units are attached directly to the polyether.
Polyoxyalkylene-modified silicone copolymers bring about good soft hand and hydrophilicity (U.S. Pat. No. 5,811,482) on hydrophobic nonwoven surfaces (PE, PP; PE, glass, rayon cellulose, viscose). Applications mentioned include diapers; insoles; paper/fabric cloths for improving the absorbency in conjunction with a pleasant hand. However, no quat groups are present in this case.
SUMMARY OF THE INVENTION
The invention embraces, in a first embodiment, polysiloxanes having polyether quat functions, of the general formula I
where
a=from 5 to 500,
b=from 0 to 50,
c=from 0 to 20,
R
1
=identical or different aliphatic or aromatic carbon radicals, preferably having of 1 to 8 carbon atoms,
R
2
=R
2A
or R
2B
, with the proviso that there is at least one radical R
2A
and R
2B
on the siloxane framework,
R
2A
=a polyether radical of the formula II
—(Y)[O(C
2
H
4-d
R
3
d
O)
e
(C
f
H
2f
O)
g
X]
n
  (II)
where
Y=an (n+1)-valent, optionally branched hydrocarbon radical,
d=from 1 to 3,
e=from 1 to 20,
f=from 2 to 4,
g=from 1 to 20,
X=hydrogen, or a monovalent hydrocarbon radical or an acyl radical, each preferably having 1 to 10 carbon atoms,
n=from 1 to 4,
the radicals R
2
being identical or different in each case,
R
2B
=a group -M-Z
where Z is selected from the group consisting of
R
3
=hydrogen or alkyl, preferably having 1 to 22 carbon atoms, R
4
, R
5
, R
6
alkyl, preferably having 1 to 22 carbon atoms,
R
7
=—O— OR —NR
9
—,
R
8
=a divalent-valent, optionally branched hydrocarbon radical, and
R
9
=hydrogen or alkyl, preferably having 1 to 6 carbon atoms,
A=a counterion to the positive charges on the quaternized nitrogen groups, selected from organic or inorganic anions of physiologically compatible acids HA,
h=from 1 to 20, preferably from 1 to 6,
M=a divalent radical selected from the group consisting of
Compared with the siloxane quats of the prior art, the polyether siloxane quats of the invention are more hydrophilic and are compatible in a polar environment. They combine the advantages of the individual segments: polyether, quat, and siloxane.


REFERENCES:
patent: 5098979 (1992-03-01), O'Lenick, Jr.
patent: 5807956 (1998-09-01), Czech
patent: 5811482 (1998-09-01), Sabia
patent: 37 19 086 (1988-10-01), None
patent: 2 201 433 (1988-09-01), None

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