DE1617211A1 - Liquid detergent - Google Patents

Description

Patent Attorneys ^. 1617211 σ »386 London Dr. Ing.A. van der Werth

Hamburg 9O If "« ·

W l.-tcrfer Straß © 3ä t. $ _t Qkf iQ & o

Dr .. F. Lederar ^ll ^ ⁰⁰

Munich 'c _r Loa ^s ,

UUILEVER JT. V *

Museugpark 1, Rotterdam, Holland

Liquid detergent

Priority: USA patent application

'' Mr. 493 804 of October 7th -1965 "

The invention relates to liquid cleaning * - medium ©

In general, these agents comprise the combination of a smaller proportion of a detergent- component and a larger proportion of water, the latter to bring about the liquid state « furthermore, to supplement and improve the cleaning ability, it is common to add so-called builders or nutrients and foam improvers. In the IaLIe of agents intended for use for delicate laundry purposes, organic compounds ^ ZeBo amides or alkanolamides are often used, lent to improve the foaming power »Im Trap of funds ^ intended to be used for Handle washing purposes, - becomes an inorganic builder provided, which is usually a phosphate * in particular alkali metal polyphosphates and alkali pyrophosphates * In addition to the G-runddstergens stock * part, building materials and Sehäiamverto es serern other constituents be present, s * B »as

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as well as salts present in the detergent ingredients as a result of the manufacturing process are"

As is known, it is a problem to produce a homogeneous liquid when using liquid cleaning agents obtained which is resistant to separation into two or more phases. This phase separation— problem has been particularly bothersome. «Returned to its simplest content, the problem persists therein, a sufficient amount of the detergent ingredients to be dissolved in a single-phase liquid to obtain a concentrate of adequate strength » The detergent ingredients often have limited solubility in water and are easily inorganic Salted out salts, which, e.g. inorganic building materials, may be present «In many liquid cleaning agents it is common a lesser amount of alcohol to use to make the organic constituent in the than greater To make part of the solvent used water soluble. In other liquid detergents, the lower alkyl benzene sulfonates, such as sodium xylene sulfonate or ITodium toluene sulfonate, used as hydrotopic substances *

It has now been found, surprisingly, that the water-soluble salts of certain IT- (2-hydroxy-alkyl) - ΪΓ-methyltaurine an unexpected hydrotropic Develop activity and can be used for this purpose in liquid cleaning agents »

Typical liquid detergents to which the invention is applicable _? consist essentially of 2-35 $ of an organic detergent and a sufficient amount of water to liquefy the batch, the amount of organic detergent being sufficient that a mixture of at least two phases would normally distort "bar expression" essentially from "is gone: ra understand that additions can be present when—

BAD ORIGINAL 1Ö9809 / 1 8 8Sh 3 -

sj-ielsweise _s are known to those in the art that different for modifying properties of the agent, but not "change its basic character of the Li (2-hydr oxy alkyl) -F-methyltaur ine the jsrf iiiduiig can tropics in combination with other hydro- may be used, and such agents with a content of other hydrotropes fall within the scope of the invention. "2-35>& one Og to Cj ₂ ίΓ ~ (2- * hydr oxy alkyl) -H-methyltaurine are added to such a cleaning agent, the amount of which is sufficient to provide a homogeneous mixture »

The invention is of particular applicability to detergents consisting essentially of 2-35% of an organic detergent, a builder to improve the detergency of that detergent, and sufficient water to liquefy the composition, the amount of the organic detergent normally - is sufficient to e '/ yield in products containing more than one phase, the presence of a builder, and in particular of inorganic Alkaliphospiictten ^ maintains the organ - = · see detergents difficult soluble to maoheru as Hegel when a builder is present _s the necessary ratio of IT- (2-hydroxyalkyl) -IJ-methyltaurine to the organic detergent _{s to} obtain a homogeneous liquid is therefore greater than in its absence

In detail contain cleaning agents according to Invention;

a) 2-35% of an organic detergent, for example the de-ergens salts of organic sulphonic and sulfuric acids, non-ionic condensates of ethylene oxide with cleaning power, and cationic detergent compounds containing a quaternary nitrogen atom in the molecule5

b) 2-35 $ of an F-C, 2-hydroxyalkyl) -F-methyltaurine

with 6-12 carbon atoms in the aryl group, where ■ ·

■ λ RAD OBiGlMAU

109909/1999 ~ ⁴ "

~ 4

the weight ratio of the N- (2-hydroxyalkyl) -H-methyltaurine to the detergent (a) is between 9: 1 and 1: 9 and the amount of IT- (2-hydr oxy alkyl) -, IT — me thy Itaurine is undressing to be homogeneous To yield liquid ;;

c) according to V / ahl "up to 20? b of an alkali phosphate builder

d) according to Y / ahl up to 15 ^ of an amide of the formula

0 R ₂

R ₁ -GI
¹ \

Wherein R ₁ contains 8-18 carbon atoms and R ₂ and Rv each represent hydrogen, lower alkyl or lower hydroxyalkyl radicals with up to 5 carbon atoms, and wherein no more than one hydrogen is bonded to the nitrogen; and

e) water and other components »

In the preceding and also in the following are all percentages based on the weight of the complete composition, unless otherwise stated is a

Various other ingredients can be added to enhance the properties of the detergent to improve, but which does not change its essential character. Usually won't more than $ 10-20 of the composition made from such ingredients exist, although larger amounts of the other ingredients may be present, in particular when the main detergent ingredient is noticeable Amount of impurities contains »Possible other ingredients include, but are not limited to, thickeners, fillers, dirt carriers, Dyes, perfumes, colorants, optical brighteners, germicides, opaque agents and the like

Any or more can be used as the main detergent

109809 / 188Sl ₅ .. ■ bad original

of the known organic detergent compounds be used »

The building materials which come into consideration are the well-known soluble alkali phosphates ₈ Zobe alkali pyrophosphates and polyphosphates _o tetrasodium pyrophosphate> pyrophosphate, ITatriumtripolyphosphat, potassium .and the simple sodium or potassium phosphate are the most common of Phosphatauf- commercially available building materials _o Venn. Phosphate builders are used, they are usually present in amounts of 5-20 ^ "Fitriloacetic acid salts are another known group of organic builders which can be used in the invention"

they are usually used when organic amides are used present in amounts of $ 2-15 »

The salts of IT ~ (2-hydroxyalkyl) -H2-methyltaurines ₉ which are used as hydrotropes in the invention have the following formula

OH

OH-

-OH ₂ -FO H ₂ -OH

wherein E. 4-10 carbon atoms and M is a water-solubilizing cation is _e Because wirksamster hydrotropic activity are the GG ^ 10 ^ ^'- (2 "-Jiyaroxyalkyl)" - lT-methyltaurine preferred (ie · In which E. formula above contains 4-8 carbon atoms).

in. the cleaning agents are known the cations that make the wafers profitable the alkali metal ions, ammonium * and substituted ammonium ions for technical economy and convenience are sodium, potassium, and mononium the preferred cations. Knaniie typical aub-0tituierte / Amaoiiiumioiien close one Srimethyl-

i-t. O & iathanolammonius «· and MorpholiMoaeji»

BATH ORIGINAL

The alkyl group of the Η— (2 ~ hydroxyalky.l) ■ -i ^; l'- ■ 'methyltaurine can either be a straight or branched chain and can be derived from either synthetic or natural sources ^,

or "C _n or mixtures thereof

example 1

Sodium salt of N- (2-hydroxyoctyl) -N-methyltaurine (GgHMITj $ 24

Sodium Lauryl Sulphate $ 6

Water . $ 70

Example 2

Sodium al of N «- (2 ~ hydr oxy octyl) -N-methyltaurine (Cg HAIiIT) $ 12

Sodium Alfol 1412-3 «1 B» 0. sulfate (containing a straight-chain primary alcohol obtained by the liquid polymerization of ethylene an average of 12-14 carbon atoms in the alkyl group and containing an average of about 3.1 ethylene oxide groups) * $ 18

Water $ 70

Example 3

Components $

O ₈ HAMI · 15.0

Igepon TC42 (sodium N-methyl-N-oousoleic acid

taurate)
Tetrapotassium prophosphate 7.5
15 * 0 - 7th
15th t5
, 0 BATHROOM LOCAL GINAL water 77 ₁ 5 62 »5 109809/1889 -7 »·

1817211

3eScription of the middle

ke opaque liquid a little on the organic separation I ¹ IUssig- its surface

clear homogeneous

liquid

Example 4

Components O ₁₀ hooks

Polypropylene level sulfate (mean molecular weight of

üuixonic acid 325) 2 • 93 - 20th 2 ITatriuEtripolyphosphate 5 organic solid
fabrics fall
from the
'Liquid out LHSS (Hatr iumlauryl-
elycerin ether
sulfate 10 70 3 y / ater Ϊ etra potassium
ryrophosphate transparent
liquid
LHES separates 85 description
of the SIi tt ice ■ A water ■ clear
homogeneous Example 5 Description
of the means Components B. O ₁₀ EAlII ¹ - 6 - 10 20th 62 clear homo ~
genes
liquid

as a solid on-and-off-loading liquid »

BAD O? Li <ai

109809/1889

Example 6

This example explains that an anionic liquid detergent can be coupled to a cationic detergent by means of N- (2-hydroxyalkyl) -H-methyltaurine following »

Components

Potassium dodeoyl benzene sulfonate
Alkanesulfonic acid 9.62 Sodium xylene toluenesulfonate 7.93 Lauric isopropanolamide 3.11 Laurind ifcät hanolamid 2.67 Has tetra-potassium pyrophosphere 18 * 58 Water to 10 ° C

Sufficient K "- (2-hydroxyalkyl)" 4r- "ethyltaurine" and added to a mixture of 100 parts of the above agent and 5 parts of dietearyldioethylanmonichloride to give a homogeneous liquid without this H- (2-hydroxyalkyl) -I- »EthyItaurine creates a multilayered separation ·

Components part

liquid detergent 100 100

O ₈ HOUSE 15

Distearyldimethyl

ammonium chloride 5 S

Water * »15

120 120

Description of the clear homogeneous * nehreohioh-Hittela liquid tig · separation

BATH ORIGINAL - 9 -109809 /

Claims (1)

Claims 1 · Aqueous liquid cleaning agent, characterized in that it from 2 - 35? 6 of an organic detergent and from 2-35 $ of a water-soluble salt of an H- (2-hydroxyalkyl) -U-nie thy Itaurine, in which the alkyl group has 6-12 carbon atoms and where the laurine salt is present in sufficient quantity to to give a homogeneous liquid comprises, and whereby the agent would normally form more than one phase in the absence of the laurine salt 2 »Means according to claim 1, characterized by g e ■ - <, that it includes from 5 - 2 ($ building blocks » 3. Means according to claim 1 or 2, dad u r e h marked that it is from $ 2 - $ 15 S of an amide of the formeX 0 I ₉ I / B ₁ -C-Ii includes, where H ₁ · 8 * 18 carbon atom containing © ₉ and lower alkyl or Eydroxyalkylradikale up mean Hg and R ^ each hydrogen to 5 carbon atoms and wherein the nitrogen is no longer bound as a Wasserstoff.an * 4 * means according to the preceding claims, characterized! that the sewing ratio of furine salt to detergent is between fit and f $ 9 # BATH ORIGINAL