Softener composition

Details Softener composition Softener composition

2001-07-25

2004-08-24

Hardee, John R. (Department: 1751)

Cleaning compositions for solid surfaces, auxiliary compositions

Auxiliary compositions for cleaning, or processes of preparing

Textile softening or antistatic composition

Reexamination Certificate

active

06780833

ABSTRACT:

TECHNICAL FIELD
The present invention relates to a softener composition.
BACKGROUND ART
Heretofore, quaternary ammonium salts having long-chain alkyl group, acid salts of tertiary amines, etc. have been used for softeners. Further, compounding of a softener composition with an antimicrobial agent has been attempted for sanitation and deodorization of fiber products. JP-A 10-512015 discloses a softener composition comprising a water-insoluble quaternary ammonium salt as a softener and a water-soluble quaternary ammonium salt as an antimicrobial agent compounded therein. In addition, JP-A 7-3649 discloses a fiber product-softener composition, having pH 2 to 5, comprising a di-long-chain-alkyl amine (C
6-24
alkyl or alkenyl group which may be interrupted by an ether linkage, ester linkage or acid amide linkage) and a mono-long-chain-alkyl quaternary ammonium salt (C
6-24
alkyl or alkenyl group which may be interrupted by an ether linkage, ester linkage or acid amide linkage), at a weight ratio of from 9:1 to 5:5. WO 98/56886 discloses an antimicrobial fiber softener composition, being suitable for conferring antimicrobial performance on fibers, comprising a conventional fiber softener composition and one or more cationic antimicrobial agents in a larger amount than required for antimicrobial performance. It, however, is a problem that the antimicrobial water-soluble quaternary ammonium salt lowers the softening effect. The softening effect is necessarily sacrificed in order to attain a satisfactory antimicrobial effect. In particular, it is difficult to achieve a composition demonstrating both a high softening effect and antimicrobial performance being capable of suppressing for long nasty smell attributable to microorganisms when clothes are dried in a room and body smell derived from sweat at the time of wearing.
DISCLOSURE OF INVENTION
Accordingly, the purpose of the present invention is to provide a softener composition which suppresses for long body smell derived from sweat etc. and is excellent in the softening effect.
The present invention relates to a softener composition comprising:
(a) a quaternary ammonium compound represented by the formula
 wherein R
1
and R
2
independently represent a C
12-22
alkyl or alkenyl group, X and Y are independently —COO—, —CONR
7
—, —OCO— or —NR
7
CO—, preferably provided that at least one of X and Y is —COO— or —OCO—. R
7
represents a hydrogen atom or a C
1-3
alkyl or hydroxyalkyl group. R
3
and R
4
independently represent a C
1-5
alkylene group, R
5
and R
6
represent a C
1-3
alkyl or hydroxyalkyl group or R
1
—X—R
3
—, and Z
−
is an anionic group,
(b) a quaternary ammonium compound represented by formula (2):
 wherein R
8
represents a C
12-22
alkyl or alkenyl group, W is a group selected from —COO—, —CONR
7
—, —OCO— and —NR
7
CO—, R
7
represents a hydrogen atom or a C
1-3
alkyl or hydroxyalkyl group, preferably a hydrogen atom, R
9
represents a C
1-5
alkylene group, R
10
and R
11
represent a C
1-3
alkyl or hydroxyalkyl group, R
12
represents a C
1-3
alkyl group or —R
26
—OH, R
26
is a C
1-5
alkylene group and Z
−
is an anionic group, and
a compound selected from the following component (c) or (d):
(c) 0.1 to 15% by weight of a compound represented by formula (3) and/or formula (4):
 wherein R
13
and R
18
independently represent a C
5-19
alkyl or alkenyl group, R
14
and R
15
independently represent a C
1-3
alkyl or hydroxyalkyl group, and T is —COO—, —OCO—, —CONH—, —NHCO—,
 or a linkage; R
16
represents a C
1-3
alkylene group, R
17
represents a C
1-6
alkylene group or —(O—R
19
)
n
, R
19
is ethylene group or propylene group and n is a number of 1 to 10 and W
−
is an anionic group, and
(d) 0.01 to 15% by weight, preferably 0.1 to 15% by weight of a compound represented by formula (5):
 wherein 2 or 3 groups of R
20
, R
21
, R
22
and R
2 3
represent a C
8-12
alkyl group while the remainder(s) represents a C
1-3
alky group, C
1-3
hydroxyalkyl group or C
7-15
arylalkyl group, and Z
−
is an anionic group.
As used herein, the “linkage” refers to a covalent bond directly linking R
13
with R
17
.


REFERENCES:
patent: 5399272 (1995-03-01), Swartley et al.
patent: 5686376 (1997-11-01), Rusche et al.
patent: 6277796 (2001-08-01), Sivik et al.
patent: 0 022 555 (1980-07-01), None
patent: 3-287867 (1991-12-01), None
patent: 5-098571 (1993-04-01), None
patent: 7-003649 (1995-01-01), None
patent: 9-137379 (1997-05-01), None
patent: 10-512015 (1998-11-01), None
patent: 11-061640 (1999-03-01), None
patent: WO 94/20597 (1994-09-01), None
patent: WO 9856886 (1998-12-01), None

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