ITMI20081860A1 - SECONDARY MULTIFUNCTIONAL TENSIO BASED ON RAW MATERIALS OF NATURAL ORIGIN - Google Patents

Description

DESCRIPTION OF INDUSTRIAL INVENTION entitled:

? Multifunctional secondary surfactant based on raw materials of natural origin "

Description

The present invention relates to a multifunctional secondary surfactant product, based on raw materials d? natural origin, easily used in the preparation of liquid detergents and products for personal care and hygiene

The recent market needs, requiring more products? effective and at the same time more delicate on the skin as well as? Environmentally Friendly "direct the producers of liquid detergents, for the home and personal hygiene, towards the use of raw materials deriving from renewable natural sources capable of satisfying these needs in terms of delicacy on the skin without compromising their effectiveness in wash

The additional labeling requirements that the formulator has to face; performance, formula cost, biodegradability, dermo-compatibility, viscosity, appearance, rheology, stability, density foam, etc., very often become contradictory and difficult to reconcile elements

For each of these elements there are a series of products that satisfy more? or not the end for which they are proposed, and it remains up to the formulator to find the ideal compromise

The formulations d? detergents for the home and personal hygiene concern a series of surfactants, called? primary "or basic, to which other" secondary "surfactants are normally added.

The purpose of secondary surfactants? to improve some characteristics of the basic formulation such as cleansing power, foam, viscosity, skin irritation, etc. In rinse-off products, the characteristics sought by consumers are good effectiveness in terms of washing, excellent quality? foam (even in hard water), good viscosity? / rheology (generally associated by the consumer with the concentration of the product) dermo-compatibility? during and after washing, and obviously at an acceptable cost. These characteristics consequently become the ultimate goal of the formulator

To meet all these needs, formulations have been placed on the market over the last few decades in which a series of specific secondary surfactants are used in order to d? bring to the final product all the desired characteristics and / or solve a formulation problem

In general, each secondary surfactant acts positively on one characteristic of the formulation but often to the detriment of another. For instance; l? alkalonamide, used as a viscosifying agent, increases the viscosity? of the formulation but at the same time the washing effectiveness decreases as well as presenting the problem of nitrosamines

Other viscosifying substances are available, such as polymers of synthetic origin (acrylic, polyurethane, carbomer type) or of natural origin of xanthan gum type for cosmetics, however both have an unpleasant skin feel, and have no positive influence on efficacy. washing Other viscosifiers, are in solid form, the use requires a preventive melting, which does not help the management of the production, much less the economy. of the process

The purpose of the present invention? to make available to the formulator a multifunctional secondary surfactant product for detergents and products for personal care and hygiene, easy to use and which simultaneously offers multiple application advantages and can solve all those formulation needs that in the past could only be solved with '' use of different ingredients in the same formulation forcing the formulator to a compromise that ultimately required the increase of the active and consequently the cost

A single "multifunctional" product that is easy to use, both for the detergent formulations such as soaps, dishwashers, and for the formulations dedicated to personal hygiene

Requirements of this multifunctional product are to be a synergistic base of biodegradable natural surfactants, capable of increasing the active of the formulation, therefore the washing power, increasing the foaming power as well as the? the density? of the foam, increase the viscosity? by adding electrolytes, confer an anti-odor (deodorant) effect, significantly reduce skin irritation resulting from the primary surfactant

This innovative product does not have the disadvantage of the various products currently on the market, capable of acting on a single qualitative characteristic, but which nevertheless negatively affect other characteristics required of the formulation, thus forcing the formulator to increase the individual dosages, to compensate for these negative interferences. , which would compromise the quality? of the finished product

For example, by increasing the viscosity? of a dishwasher based on LAS / SLES with the addition of alkalonamides, you get a loss of washing power, since? the product ? to all intents and purposes an? oily product ", does not increase the active of the formulation, it also presents the risk of nitrosamines. a degree of ethoxylation of about 10M EO, but both would cause a significant decrease in viscosity and, in the case of glycerin, also in the washing power

The multifunctional surfactant, object of the invention? consisting of at least three ingredients, including alkylamide propylbetaine (1), 2-hydroxypropanoic acid alkyl ester (2), PEG triglyceride (3), in an aqueous medium

Within the scope of the invention, all combinations of the aforementioned surfactants are included

The quantity total surfactant in the product of the invention preferably comprised between 3% and 85% of active matter

The pH of the product of the invention? preferably between 4.5 and 8.5, even more? preferably between 5 and 7, even if the preferred value varies as the combination of ingredients varies

The product of the present invention has all the advantageous characteristics mentioned above when it is added in small percentages in the various formulations of liquid detergents such as (dishwashers, soaps, preparations for home care and personal hygiene such as shampoo, bubble bath, shower gel. etc.)

How will it come? illustrated in the section relating to the examples, such products generally contain, in addition to the object of the invention, active substances and additives of various kinds which are usual for? personal care products and detergent products in general, which are chosen according to the type of final product desired

The final product can? include pH regulators, dyes, perfumes, preservatives, solubilizers, humectants, disinfectants, etc.). If the final product contains essences or perfumes, which are oily substances, the formulator will be? able to choose the suitable solubilizer These additives, well known to the formulator technician, can be added during the preparation of the final product

The general formulas of the surfactants used in the multifunctional surfactant base of the invention are as follows:

Formula (1): PROPYLBETAINE ALKYLAMIDE

Where R,? a saturated or unsaturated alkyl group, linear or branched, having from 3 to 30 carbon atoms M <+>? the cation deriving from the inorganic base, preferably NaOH. KOH, while X? a halide, preferably the Cl anion

Formula (2): ALKYL ESTER OF ACID 2 - HYDROXYPROPANOIC

Where R2? a saturated or unsaturated alkyl group, linear or branched, having from 6 to 25 carbon atoms

Formula (3): POLYALCOXYLATE TRIGLYCERIDE

R, R ', R ?, a saturated or unsaturated alkyl group from 12 to 26 carbon atoms, while the sum of?, + M + p varies from 4 to 10.

In the indicated formulations the alkyl groups are mutually independent

Application examples:

The following examples are provided for illustrative purposes only and do not have the intent d? limit the scope of the invention as defined in the attached claims

Examples 1 to 5 illustrate some mixtures falling within the scope of the present invention. Example 6 describes some formulations for liquid dish detergents, in which bases have been added. A, 8, C, D, E

Example 7 describes some formulation for personal hygiene, in which bases A, B, C, D, E have been added

Example 1: Base A

From 2% to 10% of active matter mmstyl lactate, underlying formula (a) From 30 to 85% of coccoamido propyl betaine of the underlying formula (b) From 1 to 4% peg 7 ol? Veo? L d? formula below (c)

Just enough water at 100, The pH of Base A? preferably less than 6.5

(Re? The alkyl blend derived from coconut)

R, R ', R "alkyl distribution of olive oil

n + m + p, mean value 7

Example 2: Base B.

From 1% to 8% of lauryl lactate active matter, formula below (d) From 30 to 85% of coccoamido propyl betaine of formula (b)

From 1 to 4% peg 7oliveoil, of formula (c)

Just enough water at 100 The pH of Base A? preferably less than 6.0

Example 3 Base C

2% to 10% myristyl lactate active material, formula (a)

From 30 to 85% of lauryl amido propyl betaine of the underlying formula (e) From 1 to 4% peg 7oliveoil, of formula (c)

Just enough water at 100 The pH of Base A? preferably less than 7

Example 4: Base D

2% to 10% myristyl lactate active material, formula (a)

From 25 to 85% of coccoamido propyl betaine of formula (b)

From 0 to 2% peg 7oliveoil, of formula (c)

Water as required at 100. The pH of Base A? preferably less than 6.5 Example 5. Base E

2% to 10% active matter minstil lactate, formula (a)

From 30 to 85% of coccoamido propyl betaine of formula (b)

From 1 to 4% peg 8 oliveoil, of formula (F)

Just enough water at 100 The pH of Base A? preferably less than 6.5

R, R'.R? alkyl distribution of olive oil

n + m + p, mean value 8

Example 6

Concentrated dish detergent

Base A, according to example 1 2% Linear dodecylbenzene sodium sulfonate 15% Sodium lauryl ether sulphate 5% Citric acid q b at pH 56 Water, NaCI, color, preservative, perfume q b a 100 Dish detergent 1

Base B, according to example 2 2% Linear sodium dodecylbenzene sulphide 10% Sodium lauryl ether sulphate 4% Citric acid q b at pH 5 6 Water, NaCI, color, preservative, perfume q b a 100

Dish cleaner 2

Base C, according to example 3 2% Linear sodium dodecylbenzene sulphide 10% Sodium lauryl ether sulphate 4% Citric acid q b at pH 5 6 Water, NaCI, color, preservative, perfume q b a 100

Dish cleaner 4

Base D, according to example 4 2% Linear dodecylbenzene sodium sulphide 12% Sodium lauryl ether sulphate 5% Citric acid to taste, at pH 5 6 Water, NaCI, color, preservative, perfume to taste at 100

Economical dish cleaner

Base E, according to example 5 2.5% Linear sodium dodecylbenzene sulphide 3% Sodium lauryl ether sulphate 2% Citric acid q b. a pH 5 6 Water, NaCI, color, preservative, perfume q b a 100 Example 7

Shampoo 1

Base A, according to example 1 2.5% Sodium lauryl sulphate 70 2EO 12% Betaine 4% Citric acid q b at pH 5 5 Water, NaCI, color, preservative, perfume q b a 100

Shampoo 1

Base B, according to example 2 3% Sodium lauryl sulfate 70 2EO 13% Pearlazing agent 1% Lactic acid q b a pH 5 5 Water, NaCI, color, preservative, perfume q b a 100

Shower gel

Base C, according to example 3 2% Sodium lauryl sulphate 70 2EO 12% Coconut starch alkylglycinate disodium 3% Pearlazing agent 2% Citric acid q b at pH 5.5 Water, NaCI, color, preservative, perfume q b. a 100 Anti-dandruff shampoo

Base D, according to example 4 2% Zinc lauryl sulfate 4% Ammonium lauryl sulfate 10% Piroctone olamine 2% Citric acid q b at pH 5 5 Water, NaCI, color, preservative, perfume q b a 100

Baby shampoo

Base E, according to example 5 3% Ammonium lauryl sulphate 15% Coccobetaine 4% Citric acid q.b at pH 5.5 Water, NaCI, color, preservative, perfume q b a 100

Claims (1)

CLAIMS 1 The base, object of the invention, particularly for detergent products and personal care products, comprises in an aqueous medium, three surfactants selected from alkylamidopropylbetaine d? formula (I), 2-hydroxypropanoic acid alkyl ester of Formula (II), PEG olive oil of formula (IH) the formula (I)? Where Ri? a saturated or unsaturated alkyl group, linear or branched, having from 3 to 30 carbon atoms M +? H + or a cation of an organic or inorganic base, while X '? an inorganic or organic anion the formula (II)?: Where R2? a saturated or unsaturated alkyl group, linear or branched, having from 6 to 25 carbon atoms the formula (III)? R, R ', R ", a saturated or unsaturated alkyl group from 14 to 24 carbon atoms, while the sum of n, + m + p varies from 4 to 10 2. The basic mixture in aqueous medium of the surfactants according to claim 1 comprises: 2% to 10% of active matter myristyl lactate of formula (d), 30 to 85% of coccoamido propi betaine of formula (b), from 1 to A% peg 7oliveoil (c) - formula (a)?: - formula (b)? {King? the alkyl mixture deriving from coconut) - formula (c)? R, R'.R? alkyl distribution of olive oil n + m + p, mean value 7 3 The basic mixture in aqueous medium of the surfactants according to claim 1 comprises from 1 to 8% d? active matter lauryl lactate, underlying formula of formula (d), from 30 to 85% of coccoamido propyl beta? na of formula (b), from 1 to 4% peg 7 oliveoil (c) - formula (d)? 4 The base comprises a mixture in aqueous medium of the surfactants according to claim 1 comprises from 2 to 10% of myristol lactate active matter, formula (a), from 30 to 85% of lauryl amido prop? l beta? na (e), from 1 to 4% peg 7 oliveoil (c) - formula (d)? 5 The base comprises a mixture in aqueous medium of the surfactants according to claim 1 comprises from 2% to 10% of myristyl lactate active material, formula (a), from 25 to 85% of coccoamido prop? l beta? na of formula (b), from 0 to 2% peg 7 oliveoil, formula (c) 6 The base comprises a mixture in aqueous medium of the surfactants according to claim 1 comprises from 2% to 10% of myristyl lactate active material, formula (a), from 30 to 85% of coccoamido prop? l betaine of formula (b), from 1 to 4% peg 8 oliveoil, formula (f) - formula (f)?: R, R ', R? alkyl distribution of olive oil n + m + p, mean value 8