Cleaning compositions for solid surfaces – auxiliary compositions – Auxiliary compositions for cleaning – or processes of preparing – Textile softening or antistatic composition
Patent
1996-03-27
1998-12-22
Green, Anthony
Cleaning compositions for solid surfaces, auxiliary compositions
Auxiliary compositions for cleaning, or processes of preparing
Textile softening or antistatic composition
510521, 510522, 510526, 510527, 554110, 554114, 564295, 564296, D06M 1346, C07C21162
Patent
active
058519823
DESCRIPTION:
BRIEF SUMMARY
The present invention relates to liquid softeners which can impart excellent softness and elasticity (fluffiness) to various textiles, exhibit excellent storage stability and water absorption properties, and are excellent in biodegradability to be gentle with the environment.
Most of the commercially available current household softeners are compositions mainly comprising di(hardened tallow alkyl)dimethylammonium chloride, which is because this quaternary ammonium salt exerts an excellent softening effect on various textiles even when used in a small amount.
However, the above quaternary ammonium salt sometimes lowers the elasticity of textile (particularly cotton) to impair the reeling thereof, when applied to the textile in an enhanced concentration for the purpose of attaining higher softness in spite of the excellent softening effect of the salt.
Further, when softener compositions containing the above quaternary ammonium salt are stored for long, they are liable to cause thickening, gelation or phase separation owing to their physicochemical properties. The commercially available softeners mainly comprising the above quaternary ammonium salt are also still insufficient in long-term storage stability, though they are in a state improved in this respect by the addition of a polyoxyethylene-type nonionic surfactant, electrolyte, solvent or other additive.
In order to overcome these disadvantages of the quaternary ammonium salt of the prior art, there have been proposed various softeners characterized by comprising a quaternary nitrogen atom, a long-chain alkyl moiety and an ester group introduced between the nitrogen atom and the alkyl moiety. For example, JP-A-90677/1991 discloses a softener composition containing a quaternary ammonium salt having an ester group which can be well dispersed without gelation, and JP-A-162872/1989 discloses another softener composition containing a quaternary ammonium salt having an ester group which exhibits excellent viscosity stability even when stored at high temperature.
However, these softener compositions characterized by comprising a quaternary ammonium salt having an ester group are still insufficient in softening effect, storage stability and water absorption properties (incidentally, the textile treated with a softener poor in water absorption properties tends to repel water, exhibiting poor feelings in use).
Furthermore, DE-A3527974 discloses C.sub.10 -C.sub.30 alkyl ester of trimethyl quaternary ammonium carboxylic acid and adducts thereof with ethylene oxide as hair care component. Additionally, EP-A298065 discloses C.sub.10 -C.sub.18 alkyl ester of trimethyl quaternary ammonium carboxylic acid as a preventive drug for sexual diseases.
An object of the present invention is to provide a liquid softener composition which is satisfactory in softening effect, storage stability and water absorption properties and is excellent in biodegradability to be gentle with the environment.
The inventors of the present invention have intensively studied to find that the above object can be attained by a liquid softener composition containing a quaternary ammonium salt having an extremely specific structure. The present invention has been accomplished on the basis of this finding.
The present invention provides a quaternary ammonium salt, processes for the preparation of quaternary ammonium salt and liquid softener compositions containing the salt.
The quaternary ammonium salt of the present invention is represented by the general formula (7-I -2). ##STR2## alkenyl group, wherein R.sup.2, R.sup.3 and R.sup.4 may be the same or different from each other, oxide molecules added,
Preferable examples of the quaternary ammonium salt of the present invention include the following (1) and (2): still preferably those represented by the general formula (1-I-1): ##STR3## alkenyl group, preferably linear or branched C.sub.36 -C.sub.44 alkyl group, and R.sup.2, R.sup.3, R.sup.4, n, X.sup.- : each as defined above!. ##STR4## and formula (7-I -2) wherein m is a number of 1 to 20 correspondi
REFERENCES:
patent: 4228042 (1980-10-01), Letton
Derwent WPI, English abstract for JP 3-90677 (Apr. 1991).
Derwent WPI, English abstract for JP 1-162872 (Jun. 1989).
Derwent WPI, English abstract for DE 3,527,974 (Feb. 1987).
Derwent WPI, English abstract for EP 298,065 (Oct. 1989).
Derwent WPI, English abstract for JP 54-130509 (Oct. 1979).
Inokoshi Junichi
Katoh Tohru
Nishimoto Uichiro
Ohtawa Yasuki
Sakaguchi Akira
Green Anthony
Kao Corporation
LandOfFree
Liquid softener compositions and quaternary ammonium salt does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Liquid softener compositions and quaternary ammonium salt, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Liquid softener compositions and quaternary ammonium salt will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2047691