KR930002845B1 - Aqueous detergent composition for removing oil and thickening method thereof - Google Patents

Abstract

This is new detergent for removing oil, which contains not phosphates but good biodegradable ethoxylated compound and sulfates. The detergent composition comprises 5-10 wt.% ethoxylated compound of formula (I), 20-40 wt.% sulfate of (II), 0- 10 wt.% thickner, and supplementary thickener. In formula, R is C12- C20 alkyl and M is N+, NH4+, and TEA. The pref. thickener is alkanol amide and supplementary thickener is salts or ampholytes. The used alkanol amide is such as acetamide MEA, cocamide MEA, modified cocamide DEA, myristamide DEA, stearamide DEA, oleamide DEA, et al.

Description

Aqueous liquid detergent composition for oil removal and thickening method thereof

The present invention relates to an oil-removing liquid cleaning composition containing no phosphate and an ethoxylate of the general formula (I) below and a sulfate of the general formula (II) below having excellent biodegradability.

(Wherein R is a C ₁₂ to C ₂₀ alkyl group and n is an integer between 1 and 5)

(Wherein R is a C ₁₂ to C ₂₀ alkyl group, n is an integer between 7 and 10 and M is Na ⁺ , NH ₄ ⁺ or TEA)

In general, when body skin is contaminated with various machine oils, industrial waste oils, etc., it is a common use case to dissolve it using flammable substances such as gasoline, thinner and benzol, and then wash it with alkaline oil (detergent). Not only does it cause the risk of ignition due to the use of materials and promotes dry rupture of the skin film, but also the washing power is incomplete, and even if it is washed, water and oil are separated into separate layers to form a floating layer. In addition, this floating layer caused strong adhesion to other objects, so that the above-mentioned floating layer was always attached around the washing container, and thus, the washing layer had to be washed again after washing the skin.

In addition, in the case of existing household or industrial synthetic detergents, alkylbenzenesulfonate (ABS) is a main raw material, which has a low biodegradability and contains phosphate which causes eutrophication of aquatic plants, causing water pollution, and It had disadvantages such as degreasing and contact dermatitis.

Applicant's prior patent No. 35513, developed to solve this problem, is a creamy detergent for oil removal containing natural surfactant added with ethylene oxide to palm oil. It is biodegradable and does not contain phosphate, which does not cause water pollution. It has advantages such as not causing skin diseases, but the use range is narrow and the use method is somewhat inconvenient, and the present invention is devised for the purpose of eliminating such defects.

In order to achieve the object of the present invention, the cleaning composition of the present invention is composed mainly of the ethoxylated compound of Formula (I) and sulfate of Formula (II), and as other additives, thickeners, thickeners, and detergents. Proteolytic enzymes, odor inhibitors, antifoams, fungicides, skin protectants, fragrances, colorants, etc. are optionally contained, and water is contained as a balance substance.

In the ethoxylate of formula (I) contained in the composition of the present invention, the alkyl group (R) is C ₁₂ -C ₂₀ alkyl, for example lauryl, myristyl, palmityl, stearyl, oleyl , Linoleyl and the like, and lauryl is preferable. Moreover, the ethoxylation degree (EO) of this ethoxylate (I) is 1-5, Preferably it is 2-4. The content of this ethoxylate (I) is 5 to 10% by weight based on the total composition.

In the sulfate of general formula (II), the alkyl group (R) is C ₁₂ -C ₂₀ alkyl, and the ethoxylation degree (EO) is preferably 7-10. In addition, the content of the sulfate (II) is 20 to 40% by weight based on the total composition.

In particular, the viscosity of the composition according to the invention is controlled by a thickener system consisting of alkanolamide thickeners and co-thickeners.

Alkanol amide is used as the thickener added to adjust the viscosity of the composition of the present invention, for example acetamide MEA, cocamide MEA, modified cocamide DEA, in advance Stamidamide DEA, stearamide DEA, oleamide DEA, and the like.

Salts or zwitterionic substances are used as the thickener added to promote the thickening of the composition. Salts become electrolytes in aqueous solution to promote the thickening of alkanol amides. The thickening is promoted by hydrogen ion association. Examples of such an amphoteric ionic material include cocoampho glycinate, cocoamphocarboxv glycinate, sodium lauryl sulfate, lauryl-betaine, cocamido Propyl betaine, and the like. As a protease, aluminic acid derivatives, condensates of saruconsin and fatty acids, urea, sodium xylene sulfonate, and the like are used, and EDTA and CMC are used as detergents.

Hereinafter, the present invention will be described in more detail using non-limiting examples.

[Examples 1 and 2]

In the following composition, the pigment, the detergent, and the distilled water were first mixed and gradually heated to 50 ° C. Here, the ethoxylated lauryl alcohol and the sulfur oxides of lauryl alcohol ethoxylate were stirred, and after 20 minutes, the fragrance was added and stirred, followed by packaging for 10 minutes to complete the liquid product. As a result of testing the obtained product, the compositions according to Examples 1 and 2 were excellent in detergency and surface wettability and had an HLB value of about 13 to 15.

Example 3

In the following composition, the pigment, the detergent, and the distilled water were first mixed and gradually heated to 50 ° C. After stirring the ethoxylate of lauryl alcohol and the sulfur oxide of lauryl alcohol ethoxylate, and after 20 minutes, it was thickened by adding and stirring myristinic acid diethanolamide and coco ampoglycinate as a flavoring agent and a thickener system, After 10 minutes, the package was completed to complete the liquid product.

The liquid detergent prepared by the above composition was found to have excellent surface wetting, excellent cleaning ability when oiled, and almost no change in viscosity due to temperature change.

As such, the present invention excludes the use of ginseng salt and has good biodegradability and thus does not cause pollution problems due to water pollution, and prevents skin degreasing or contact dermatitis after washing, and washes even after washing As well as keeping the container clean at all times and maintaining a liquid state with a constant viscosity regardless of temperature change, it can be used regardless of the season.It can be used for washing body skin contaminated with oil, household dishwashing, kitchen utensil washing and textile washing. It will be called a breakthrough invention of a new useful with the advantage that it can be used in various ways.

Claims (3)

Aqueous liquid detergent composition for oil removal, comprising 5 to 10% by weight of ethoxylate in the following general formula (I) (Wherein R is a C ₁₂ to C ₂₀ alkyl group and n is an integer from 1 to 5) 20 to 40% by weight of sulfate of formula (II) (Wherein R is a C ₁₂ to C ₂₀ alkyl group, n is an integer from 7 to 10 and M is Na ⁺ , NH ₄ ⁺ or TEA) Aqueous liquid detergent composition for oil removal which contains a. The aqueous liquid detergent composition for oil removal according to claim 1, further comprising 0 to 10% by weight of an alkanol amide as a thickener and an appropriate amount of salt or zwitterionic substance as a secondary thickener. Next Formula (I) Ethoxylate (Wherein R is a C ₁₂ to C ₂₀ alkyl group and n is an integer from 1 to 5) Sulfate of Formula (II) (Wherein R is a C ₁₂ to C ₂₀ alkyl group, n is an integer from 7 to 10 and M is Na ⁺ , NH ₄ ⁺ or TEA) In the thickening method of the oil-based aqueous liquid detergent composition for oil removal, the liquid liquid detergent composition for oil removal, characterized in that the thickening agent is thickened using alkanol amide and salt, or alkanol amide and zwitterionic material. How to thicken.