Detergent mixtures

Details Detergent mixtures Detergent mixtures

2001-11-02

2002-12-17

Delcotto, Gregory (Department: 1751)

Bleaching and dyeing; fluid treatment and chemical modification

Cleaning or laundering

C510S123000, C510S124000, C510S130000, C510S158000, C510S159000, C510S322000, C510S327000, C510S329000, C510S330000, C510S504000, C424S070280, C134S042000

Reexamination Certificate

active

06494920

ABSTRACT:

BACKGROUND OF THE INVENTION
This invention relates to detergent mixtures containing esterquats and aloe and to the use of the mixtures for the production of surface-active compositions.
Numerous surfactant mixtures used in various fields are known from the prior art. In the field of detergent raw materials and cosmetics, however, there is a common demand for concentrated surfactant premixes distinguished by good cleaning and softening properties with respect on the one hand to synthetic fibers, i.e. textiles and their precursors, and on the other hand to natural (keratin) fibers, i.e. human hair. Another requirement the products are expected to satisfy is optimal dermatological compatibility so that there is virtually no risk of even particularly sensitive consumers suffering irritation of the skin either by direct contact with the products or by indirect contact via the treated fibers.
Accordingly, the complex problem addressed by the present invention was to provide new detergent mixtures both for the detergent industry and for the cosmetics industry which would be distinguished by particularly high dermatological compatibility, by favorable skin and textile cleaning and rewetting performance and by excellent softening properties for synthetic and natural fibers.
DESCRIPTION OF THE INVENTION
The present invention relates to detergent mixtures containing
(a) esterquats and
(b) aloe.
It has surprisingly been found that the detergent mixtures according to the invention not only have particularly good dermatological compatibility, they also have particularly high cleaning performance both for textiles and for the skin and hair. In addition, not only do they provide textiles and hair with a pleasant soft feel, they also reduce the static charging between the fibers. The mixtures are particularly suitable for the production of softeners and skin-care and hair-care products.
Esterquats
“Esterquats” (component a) are generally understood to be quaternized fatty acid triethanolamine ester salts. They are known compounds which may be obtained by the relevant methods of preparative organic chemistry, cf. International patent application WO 91/01295 ((Henkel), in which triethanolamine is partly esterified with fatty acids in the presence of hypophosphorous acid, air is passed through the reaction mixture and the whole is then quaternized with dimethyl sulfate or ethylene oxide. Overviews of this subject have been published, for example, by R. Puchta et al. in Tens. Surf. Det., 30, 186 (1993), by M. Brock in Tens. Surf. Det., 30, 394 (1993), by R. Lagerman et al. in J. Am. Oil Chem. Soc., 71, 97 (1994) and by I. Shapiro in Cosm. Toil. 109, 77 (1994). The quaternized fatty acid triethanolamine ester salts correspond to formula (I):
in which R
1
CO is an acyl group containing 6 to 22 carbon atoms, R
2
and R
3
independently of one another represent hydrogen or have the same meaning as R
1
CO, R
4
is an alkyl group containing 1 to 4 carbon atoms or a (CH
2
CH
2
O)
q
H group, m, n and p together stand for 0 or numbers of 1 to 12, q is a number of 1 to 12 and X is halide, alkyl sulfate or alkyl phosphate. Typical examples of esterquats which may be used in accordance with the present invention are products based on caproic acid, caprylic acid, capric acid, lauric acid, myristic acid, palmitic acid, isostearic acid, stearic acid, oleic acid, elaidic acid, arachic acid, behenic acid and erucic acid and the technical mixtures thereof obtained, for example, in the pressure hydrolysis of natural fats and oils. Technical C
12/18
cocofatty acids and, in particular, partly hydrogenated C
16/18
tallow or palm oil fatty acids and C
16/18
fatty acid cuts rich in elaidic acid are preferably used. To produce the quaternized esters, the fatty acids and the triethanolamine may be used in a molar ratio of 1.1:1 to 3:1. With the performance properties of the esterquats in mind, a ratio of 1.2:1 to 2.2:1 and preferably 1.5:1 to 1.9:1 has proved to be particularly advantageous. The preferred esterquats are technical mixtures of mono-, di- and triesters with an average degree of esterification of 1.5 to 1.9 and are derived from technical C
16/18
tallow or palm oil fatty acid (iodine value 0 to 40). In performance terms, quaternized fatty acid triethanolamine ester salts corresponding to formula (I), in which R
1
CO is an acyl group containing 16 to 18 carbon atoms, R
2
has the same meaning as R
1
CO, R
3
is hydrogen, R
4
is a methyl group, m, n and p stand for 0 and X stands for methyl sulfate, have proved to be particularly advantageous.
Besides the quaternized fatty acid triethanolamine ester salts, other suitable esterquats are quaternized ester salts of fatty acids with diethanolalkyamines corresponding to formula (II):
in which R
1
CO is an acyl group containing 6 to 22 carbon atoms, R
2
is hydrogen or has the same meaning as R
1
CO, R
4
and R
5
independently of one another are alkyl groups containing 1 to 4 carbon atoms, m and n together stand for 0 or numbers of 1 to 12 and X stands for halide, alkyl sulfate or alkyl phosphate.
Finally, another group of suitable esterquats are the quaternized ester salts of fatty acids with 1,2-dihydroxypropyl dialkylamines corresponding to formula (III):
in which R
1
CO is an acyl group containing 6 to 22 carbon atoms, R
2
is hydrogen or has the same meaning as R
1
CO, R
4
, R
6
and R
7
independently of one another are alkyl groups containing 1 to 4 carbon atoms, m and n together stand for 0 or numbers of 1 to 12 and X stands for halide, alkyl sulfate or alkyl phosphate.
So far as the choice of the preferred fatty acids and the optimal degree of esterification are concerned, the examples mentioned for (I) also apply to the esterquats corresponding to formulae (II) and (Ill). The esterquats are normally marketed in the form of 50 to 90% by weight solutions in alcohol which may readily be diluted with water as required. The esterquats may also be used together with fatty alcohols in the form of flakes, as described, for example, in German patent DE-CL 4308794 (Henkel).
Aloe
Aloe—also known as atoin—is the thickened juice of leaves of aloe species (Liliaceae), mainly of Aloe vera (Curacao aloe) and Aloe ferox or Aloe africans (Cape aloe). Besides resins, the juice contains emodin, essential oils, above all about 5 to 25% by weight of the anthone derivative aloin. Other constituents are the pyrone derivative aloenin, various aloesaponols derived from anthracenone and the chromanone derivative aloesin. An overview of this subject can be found in PhiuZ, 13, 172 (1984).
Other Surfactants
The detergent mixtures according to the invention may contain other anionic, nonionic, cationic and/or amphoteric or zwifterionic surfactants in quantities of typically about 1 to 25% by weight and preferably 5 to 15% by weight, based on the detergent mixture. Typical examples of anionic surfactants are soaps, alkyl benzenesulfonates, alkane sulfonates, olefin sulfonates, alkyl ether sulfonates, glycerol ether sulfonates, &agr;-methyl ester sulfonates, sulfofatty acids, alkyl sulfates, fatty alcohol ether sulfates, glycerol ether sulfates, fatty acid ether sulfates, hydroxy mixed ether sulfates, monoglyceride (ether) sulfates, fatty acid amide (ether) sulfates, mono- and dialkyl sulfosuccinates, mono- and dialkyl sulfosuccinamates, sulfotriglycerides, amide soaps, ether carboxylic acids and salts thereof, fatty acid isethionates, fatty acid sarcosinates, fatty acid taurides, N-acyl amino acids such as, for example, acyl lactylates, acyl tartrates, acyl glutamates and acyl aspartates, alkyl oligoglucoside sulfates, protein fatty acid condensates (more particularly vegetable wheat-based products) and alkyl (ether)phosphates. Where the anionic surfactants contain polyglycol ether chains, they may have a conventional homolog distribution although they preferably have a narrow homolog distribution. Typical examples of nonionic surfactants are fatty alcohol polyglycol ethers, alkylphenol polyglycol ethers, fatty acid polyglycol esters, fatty acid amide polyglycol ethers, fatty amin

Affiliated with

Also associated with

Rating

Detergent mixtures does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Detergent mixtures, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Detergent mixtures will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2942301