WO2025163343A1

WO2025163343A1 - Use of a combination of a galactomannan and succinoglycan in home and personal care compositions

Info

Publication number: WO2025163343A1
Application number: PCT/IB2024/050833
Authority: WO
Inventors: Tatiana SCHAFRANSKI BLACHECHEN; Douglas NUNES DE OLIVEIRA
Original assignee: Quimicos E Solucoes Sustentaveis Do Brasil SA
Current assignee: Quimicos E Solucoes Sustentaveis Do Brasil SA
Priority date: 2024-01-30
Filing date: 2024-01-30
Publication date: 2025-08-07
Anticipated expiration: 2026-07-30

Abstract

The present invention relates to the use of a combination of hydroxyalkyl galactomannan or carboxymethyl hydroxyalkyl galactomannan and succinoglycan in home and personal care compositions.

Description

Use of a combination of a galactomannan and succinoglycan in home and personal care compositions

TECHNICAL FIELD

The present invention relates the use of a combination of hydroxyalkyl galactomannan or carboxymethyl hydroxyalkyl galactomannan and succinoglycan in home and personal care compositions. The combination of hydroxyalkyl galactomannan or carboxymethyl hydroxyalkyl galactomannan and succinoglycan is desirable for increasing the viscosity and yield stress of a home and personal care composition containing said combination.

BACKGROUND

Home and personal care compositions are commonly used on a daily basis by customers all over the world.

The use of thickeners in personal care compositions is required to achieve important physical chemical properties such as viscosity and stability, allowing adequate structure of the desired composition.

Polyacrylates are widely used as rheological modifiers, thickeners, viscosity enhancers or other performances related to their structuring nature in emulsions as described in US 2008/0226616 and EP 2 611 412. However, the polyacrylates are considered microplastics non-biodegradables sources that remain for a long time in the environment. The microplastic issues are in the spotlight of health concerns regularly identified in human bodies that potentially will be correlated with health diseases.

There is an increasing demand for daily use compositions having more natural products. These changes may be driven, for example, by ecological concerns regarding the sourcing of raw material, or by health concerns regarding potential side effects of ingredients such as polyacrylates and their derivatives.

The blends of galactomannans and succinoglycan natural polymers appear as candidates to replace polyacrylates in home and personal care compositions, such as cleaning, cosmetics or other emulsified systems. However, when natural galactomannans are used in a blend with succinoglycan in formulations, the yield stress of such formulation slightly descrease if compared with formulations using exclusively succinoglycan. Additionally, the use of a blend with cationic galactomannan and succinoglycan significantly decrease the initial viscosity observed in solutions composed only by succinoglycan.

There remains the need to develop thickeners able to deliver not only excellent viscosity but also derived from natural sources.

SUMMARY OF THE INVENTION

In a first aspect the present invention relates to the use of a combination comprising hydroxyalkyl galactomannan or carboxymethyl hydroxyalkyl galactomannan and succinoglycan in home and personal care compositions.

Surprisingly, it has been found that the combination of hydroxyalkyl galactomannan or carboxymethyl hydroxyalkyl galactomannan and succinoglycan was able to not only control and increase the viscosity of a home and personal care composition, but also to improve the rheological profile of said compositions.

In a second aspect, the present invention is related to home and personal care compositions comprising a combination of hydroxyalkyl galactomannan or carboxymethyl hydroxyalkyl galactomannan and succinoglycan.

Advantageously, the compositions of the present invention provide emulsions having excellent stability for use in home and personal care.

Finally, in a third aspect the present invention relates to a method of increasing the viscosity and the rheological profile of a home and personal care composition comprising adding a combination of hydroxyalkyl galactomannan or carboxymethyl hydroxyalkyl galactomannan and succinoglycan.

BRIEF DESCRIPTION OF THE DRAWINGS

The advantages described above are clearer to those skilled in the art from the figures:

FIG. 1 shows the yield stress curves of comparative personal care compositions of the invention identified as Form 2% Rheozan SH, Form 2% Jaguar NAT and Form 0.65% Rheozan SH + 1.35% Jaguar NAT obtained by flow ramp method in rotational rheometer DHR-2 from TA Instrument, using conic Peltier accessory, equilibrated at 25 °C, soak time 60 s, stress varying from 0 to 100 Pa, 50 points and 60 s duration.

FIG. 2 shows the yield stress curves of inventive personal care compositions of the invention identified as Form 3% Rheozan SH, Form 3% Jaguar HP105, Form 1 % Rheozan SH + 2% Jaguar NAT and Form 2% Rheozan SH + 1 % Jaguar NAT obtained by flow ramp method in rotational rheometer DHR-2 from TA Instrument, using conic Peltier accessory, equilibrated at 25 °C, soak time 60 s, stress varying from 0 to 100 Pa, 50 points and 60 s duration.

FIG. 3 shows the Brookfield viscosity of gels prepared with cationic modified guar (Jaguar® C13S from Syensqo), hydroxypropyl modified guar (Jaguar® HP105 from Syensqo), succinoglycan (Rheozan® SH from Syensqo) and combinations of these guar grades with succinoglycan.

DETAILED DESCRIPTION OF THE INVENTION

Before the issues of the invention are described in detail, the following should be considered:

The term and phrases “invention,” “present invention,” and similar terms and phrases as used herein are non-limiting and are not intended to limit the present subject matter to any single embodiment, but rather encompasses all possible embodiments as described.

Throughout the description, including the claims, the term “a” and the phrase “at least one”, “one or more” are synonymous, and likewise, the phrase "comprising one" or “comprising a" should be understood as being synonymous with the term "comprising at least one," unless otherwise specified. Additionally, "between" should be understood as being inclusive of the limits. Further, throughout the description, including the claims, the terms “comprising” and “having” can be used interchangeably, and should be understood as being synonymous.

As used herein, “weight percent,” “wt%,” “percent by weight,” “% by weight,” and variations thereof refer to the concentration of a substance as the weight of that substance divided by the total weight of the composition and multiplied by 100. As used herein, the term rheological profile refers to measured properties obtained from the response of a material when mechanically deformed. The measurements were taken using rotational rheometer in flow ramp methods varying shear rate or stress or thought oscillatory methods as amplitude sweep (frequency constant and varying deformation) or frequency sweep (maintaining deformation sweeping the frequency) to monitor elastic and viscous moduli values.

It should be noted that in specifying any range of concentration, weight ratio or amount, any particular upper concentration, weight ratio or amount can be associated with any particular lower concentration, weight ratio or amount, respectively.

Throughout the description, including the claims, all process terms should be understood as being synonymous with the term method.

Should the disclosure of any patents, patent applications, and publications which are incorporated herein by reference conflict with the description of the present application to the extent that it may render a term unclear, the present description shall take precedence.

A variety of galactomannans can be used for the present invention. The expression "galactomannan" is understood to cover galactomannan derivatives, notably hydroxyalkyl galactomannan or carboxymethyl hydroxyalkyl galactomannan. A galactomannan is a polymer consisting mainly of the monosaccharides mannose and galactose. The mannose-elements form a chain consisting of many hundreds of (1 -4)-[3-D-mannopyranosyl-residues, with 1 -6 linked a-D-galactopyranosyl-residues at varying distances, dependent on the plant of origin. The galactomannans of the present application can be obtained from numerous sources. Such sources include guar gum, guar splits, locust bean gum, fenugreek gum, cassia gum, carubin, tara gum, flame tree gum and carrageenan gum. Naturally occurring galactomannans can be extracted from the endosperm of the respective seeds. Additionally, it is contemplated that the galactomannans of the present application can also be obtained by various synthetic routes known to a person skilled in the pertinent art or can be obtained by chemical modification of naturally occurring galactomannans. In the present application, “galactomannan” designates macromolecular chains of the galactomannan type, derived from endosperm of numerous sources, having been subjected to chemical modification by the grafting of chemical groups.

Processes for making derivatives of galactomannans are generally known. Typically, galactomannans are reacted with one or more derivatizing agents under appropriate reaction conditions to produce a galactomannan having the desired substituent groups. Notably, each galactose and mannose unit in the native galactomannans have hydroxyl groups as substituent groups that can be chemically modified to functionalize the galactomannan. In this respect, the galactomannans can be functionalized using a number of derivatizing agents. Suitable derivatizing reagents are commercially available and typically contain a reactive functional group, such as an epoxy group, a chlorohydrin group, or an ethylenically unsaturated group, and at least one other substituent group, such as a nonionic or anionic substituent group, or a precursor of such a substituent group per molecule, wherein substituent group may be linked to the reactive functional group of the derivatizing agent by bivalent linking group, such as an alkylene or oxyalkylene group.

In one embodiment, the galactomannan is a derivatized galactomannan derivative that is substituted at one or more sites of the polysaccharide with a substituent group that is independently selected for each site from the group consisting of nonionic substituent groups, and/or anionic substituent groups.

Suitable nonionic substituent groups include hydroxyalkyl groups, such as Ci-C₆ hydroxyalkyl groups. Suitable anionic groups include carboxy alkyl groups, such as carboxymethyl groups. The nonionic and/or anionic substituent groups may be introduced to the galactomannan chains via a series of reactions or by simultaneous reactions with the respective appropriate derivatizing agents.

According to one embodiment, the hydroxyalkyl group is a C-i-Ce hydroxyalkyl groups chosen from the group consisting of: a hydroxymethyl group, a hydroxyethyl group, a hydroxypropyl group and a hydroxybutyl group, preferably a hydroxypropyl group. In a particular preferred embodiment, the derivatized galactomannans are chosen from the group consisting of: hydroxypropyl galactomannan and carboxymethyl hydroxypropyl galactomannan.

The amount of derivatizing groups in a derivatized galactomannan may be characterized by the degree of substitution of the derivatized galactomannan or the molar substitution of the derivatized galactomannan.

As used herein, the terminology “degree of substitution” or “DS” in reference to a given type of derivatizing group and a galactomannan means the average number of such derivatizing groups attached to each monomeric unit of the galactomannan. The DS utilized by the present invention is typically in the range of from 0.001 to 3.

In one embodiment, the carboxymethyl hydroxyalkyl galactomannan of the invention exhibits a DS for anionic substituent groups ("DSanionic") ranging from 0.01 to 3.0, preferably from 0.01 to 2.0, more preferably from 0.05 to 1 .5.

According to one of the invention embodiments, the galactomannan of the invention may further contain at least one nonionic group, for instance hydroxyalkyl group.

As used herein, the term “molar substitution” or “ms” or degree of hydroxyalkylation refers to the number of moles of alkylene oxide molecules consumed by the number of free hydroxyl functions present on the galactomannan. The molar substitution can be determined by the Zeisel-GC method.

According to anyone of the invention embodiments, the galactomannans of the invention have a degree of hydroxyalkylation (MS) higher than or equal to 0.1 , for instance higher than or equal to 0.2.

According to anyone of the invention embodiments, the guar derivative of the invention has a degree of hydroxyalkylation (MS) lower than or equal to 1.0, for instance lower than or equal to 0.9.

In a preferred embodiment, the hydroxyalkyl galactomannan or carboxymethyl hydroxyalkyl galactomannan of the invention has a degree of hydroxyalkylation (MS) comprised between 0.1 and 1 .0, preferably between 0.2 and about 0.9. As for the average molecular weight (Mw) of the galactomannans of the present invention, in general the galactomannans can have an average molecular weight (Mw) at least 100,000 g/mol. The galactomannans of the present invention can also generally have an average molecular weight (Mw) up to 3,000,000 g/mol.

In a preferred embodiment, the galactomannans of the invention may have an average molecular weight (Mw) higher than 150,000 g/maol and more preferably higher than 200,000 g/mol.

In still another preferred embodiment, the average molecular weight of the galactomannan herein is lower than 3,000,000 g/mol, preferably lower than 2,000,000 g/mol.

According to a particular preferred embodiment, the hydroxyalkyl galactomannan or carboxymethyl hydroxyalkyl has an average molecular weight of at least 100,000 g/mol, preferably in the range of 200,000 to 2,000,000 g/mol.

As used herein, the “average molecular weight” of the galactomannan means the average molecular weight of said galactomannan.

The average molecular weight of the galactomannan may be measured by GPC (Gel Permeation Chromatography). Measurements may be carried out using Shodex OH Pak columns and Agilent Refractive Index Detector, for instance with the conditions detailed in the examples.

The average molecular weight of the derivatized galactomannan of the invention may be measured for instance by SEC-MALS or by using gel permeation chromatography.

The combination of the present invention also contains succinoglycan.

In one embodiment, the combination of hydroxyalkyl galactomannan or carboxymethyl hydroxyalkyl galactomannan and succinoglycan is used in a proportion between 0.1 to 5 weight percent, based on the total weight of the composition.

Preferably, the combination of hydroxyalkyl galactomannan or carboxymethyl hydroxyalkyl galactomannan and succinoglycan is used in a proportion between 0.5 a 3 weight percent, based on the total weight of the composition. In another embodiment, the combination of hydroxyalkyl galactomannan or carboxymethyl hydroxyalkyl galactomannan and succinoglycan is used in a ratio from 1 :5 to 5:1 in the home and personal care composition.

In still a preferred embodiment, the combination of hydroxyalkyl galactomannan or carboxymethyl hydroxyalkyl galactomannan and succinoglycan is used in a ratio from 1 :2 to 2:1 in the home and personal care composition.

The combination of the invention can be used in home personal care applications, for example as a thickening agent and rheology modifier.

As used herein, a thickening agent is understood as a substance able to increase the viscosity of a liquid without substantially changing its other properties.

The term “rheology modifier” is understood as a substance used to control the rheology profile of a composition, which includes the yield stress and the viscosity at different shear modes and rates.

Typically, the combination is used in an ideal proportion to obtain excellent results on viscosity and yield stress in the home and personal care composition.

In another embodiment, the use of the combination of the invention increases the viscosity and the yield stress of a home and personal care composition.

Indeed, it was discovered, totally unexpected, that the use of galactomannans, particularly having substituents such as hydroxyalkyl, in combination with succinoglycan was able to deliver substantial yield stress value without compromising the viscosity and showing outstanding rheological profile of final compositions.

The viscosity of a home and personal care composition may be measured by rotational viscometer, for instance, a rheometer or Brookfield. Measurements may be carried out using Plate-Peltier or Coaxial Cylinder rheometer or Brookfield viscometer , for instance with the conditions detailed in the examples.

In one embodiment, the viscosity of the compositions using the combination of the invention are within 100 to 2,000,000 mPa.s range.

In a preferred embodiment, the viscosity of the compositions is between 100,000 and 1 ,700,000 mPa.s. As used herein, the term “yield stress” may be understood as the stress necessary to cause an irreversible plastic deformation across a material which in practical terms means the stress necessary to the material flows.

The yield stress of a home and personal care composition may be measured by rotational rheometer in a Peltier Plate and conic spindle setup applying a flow ramp procedure sweeping the stress from 0 to 100 Pa at 25 °C after soaking 60 s.

Advantageously, the combination of the invention were able to manage the yield stress in a wide range of values, from a low value of 1 Pa up to 100 Pa, depending on the desired final product performance.

In one embodiment, the yield stress of the compositions using the combination of the invention are in a range of 0.01 Pa to 100 Pa.

In a preferred embodiment, the yield stress of the compositions are in a range of 20 Pa to 80 Pa, more preferably in a range of 30 Pa to 60 Pa .

In some aspects of the invention, it is provided home and personal care compositions.

In a preferred embodiment of the invention, the home and personal care composition contains a combination of hydroxyalkyl galactomannan or carboxymethyl hydroxyalkyl galactomannan and succinoglycan.

Personal care composition means anything done that is of a personal nature. This may include compositions used for skin care and hair care compositions, such as but not limited to body washes, soaps, facial washes, make-up, lotions, skin creams, skin conditioners, balms, hair gels, sunscreen compositions, shampoos, hair conditioners, and similar compositions. Preferably, the personal care composition is a skin care composition.

Home care composition shall include general household cleaning products for example, toilet bowl cleaners, laundry detergents, fabric softeners, dishwashing liquid, bathroom cleaner and surface cleaner.

In one embodiment, the home and personal care composition of the invention may be a variety of compositions and home and personal care applications. Depending on the composition and application, in addition to the combination of hydroxyalkyl galactomannan or carboxymethyl hydroxyalkyl galactomannan and succinoglycan, the composition may contain various other convention components and additives known in the respective art. For example, the compositions having the combination of hydroxyalkyl galactomannan or carboxymethyl hydroxyalkyl galactomannan and succinoglycan can further have one or more emulsifier, emollient, moisturizer, skin protectant, binder, chelating agent, deodorant, pest repellant, odoriferous material, antimicrobial agent, antifungal agent, antibiotic, antiperspirant agent, an oil, opacifying and pearlescent agent, preservative, propellant, spreading agent, exfoliant, keratolytic agent, vitamin, sunscreen agent, artificial tanning accelerator, ultraviolet light absorber, pH adjusting agent, botanical, skin bleaching agent dye, inorganic particles, buffers, oxidizing agents, reducing agent, pigment, anti-inflammatory agent, particulate, microabrasive, abrasive, surfactant, film-former, disinfectant, hair conditioning agent, hair fixative, insecticide, fungicide, adhesive, absorbent, colorant, humectant, topical anesthetic, fragrance, fragrance solubilizer, and combinations thereof.

In one embodiment, the home and personal care composition of the invention may be a skin care or a hair care composition. In some embodiments the invention may also include a home care composition such as applied in surface treatment, surface finishing and/or cleaning compositions.

In a preferred embodiment, the composition of the invention is a personal care composition, preferably a skin care composition.

The compositions according to the invention may be in a variety of forms, from liquid to semi-solid form.

In one embodiment, the personal care composition of the invention is in a semisolid such as a cream or lotion, or as a paste.

Advantageously, the viscosity of the personal care composition of the invention may be controlled easily using the combination as described above by applying such a combination during the preparation of the composition in a form of an emulsion.

Typically, the preparation of the emulsions of the present invention may be made by emulsification according to widely described emulsions state-of-art, and can be driven at room temperature condition or heating conditions under stirring to obtain final aesthetics desired.

In one embodiment, the method of increasing the viscosity and yield stress of the home and personal care composition of the invention is achieved by adding a combination of hydroxyalkyl galactomannan or carboxymethyl hydroxyalkyl galactomannan and succinoglycan.

Typically, the combination may be added before addition of the other components in the home and personal care composition. Alternatively, the addition of the combination may be made together with other components during preparation of the emulsion or even may be added after the mixture of all the components during the emulsion preparation.

The above description of the method of the invention also applies to the process according to the invention.

The examples of implementation of the invention below are given purely by way of illustration and shall not be interpreted at limiting the scope thereof.

EXAMPLES

The following examples are illustrative of preferred embodiments of the combination of hydroxyalkyl galactomannan or carboxymethyl hydroxyalkyl galactomannan and succinoglycan in home and personal care compositions containing such combinations, and are not intended to be limitations thereon. All composition percentages are based on totals equal to 100% by weight, unless otherwise specified.

EXAMPLE 1 - Preparation of personal care compositions.

Sample Form 0.65% Rheozan® SH + 1.35% Jaguar® NAT - 0.65 parts of succinoglycan (Rheozan® SH) and 1.35 parts of natural galactomannan (Jaguar® NAT) were weighed in a glass watch and mixed with glycerin using a stir rod, at room temperature, to obtain the polymer mixture. Then, deionized water was weighted (q.s. to 100 parts) in a beaker and mixed with the polymer mixture under stirring at 300 rpm using a four-blade stirrer followed by raising to 1000 rpm until homogeneity during 10 min to obtain the gel phase.

In a second beaker, 3 parts of the emulsifier (Alkamuls® SE 55 from Syensqo) and the oils (Dermalcare® 6040 LW from Syensqo and Dermalcare® DE from Syensqo), 3 parts and 6 parts, respectively were weighed and mixed under stirring at 300 rpm for 5 min until became homogeneous to obtain the oil phase.

The oil phase was transferred into the gel phase and stirred at 1000 rpm until full homogeneity. From this observation on, stirring was kept for 10 minutes. At this point, preservatives and antioxidants (phenoxyethanol and tocopherol), 1 .0 part and 0.5 part, respectively, were added and the composition was stirred for 10 min.

Similarly, the other samples were prepared considering the compositions detailed in TABLE 1 , where Jaguar ® HP105 and Jaguar ® NAT SGI were identified in the procedure as galactomannans. TABLE 1 : Personal care compositions having a combination of galactomannans and succinoglycan.

Yield stress of compositions prepared according to example 1 and defined in TABLE 1 were analyzed using flow ramp method in rotational rheometer DHR-2 from TA Instrument, using conic Peltier accessory, equilibrated at 25 °C, soak time 60 s, stress varying from 0 to 100 Pa, 50 points and 60 s duration.

It was observed that the compositions containing a mixture of hydroxypropyl galactomannan and succinoglycan (Inventive - Form 1 % Rheozan® SH + 2% Jaguar® HP105 and Inventive - Form 2% Rheozan® SH + 1 % Jaguar® HP105) showed superior yield stress values in comparison to the formulations containing only hydroxypropyl galactomannan (Form Jaguar® HP105) or only succinoglycan (Form 3% Rheozan® SH).

However, the compositions containing a combination of natural galactomannans and succinoglycan (Form 0.65% Rheozan® SH + 1.35% Jaguar® NAT) resulted in a yield stress value inferior compared to the compositions containing only succinoglycan (Form 2% Rheozan® SH).

EXAMPLE 2 - Viscosity of compositions using the combination of galactomannans and succinoglycan.

Into 0.34 parts of hydroxypropyl galactomannan (Jaguar® HP 105 from Syensqo) and 0.66 parts of succinoglycan (Rheozan® SH from Syensqo) were weighed and mixed to 4 parts of glycerin using a stirring rod until achieve homogeneous mixture. The mixture was transferred to a beaker containing 94.85 parts of deionized water and 0.15 parts of sodium benzoate and kept under stirring at 300 rpm using a propeller blade coupled to an automatic stirrer for 1 hour. The pH was adjusted in a range between 4.5 to 4.8 using drops of citric acid solution 20% (w/w). The obtained mixture was rested in a closed glass flask for 24h in a controlled chamber at 25 °C prior to measuring the viscosity in the Brookfield instrument.

Different compositions were prepared according to the same procedure above using the amount of ingredients in parts described in the TABLE 2, varying combinations and percentage according to TABLE 2 below.

TABLE 2: Compositions prepared for viscosity analysis in Brookfield viscometer. The viscosity measurements of the compositions prepared in EXAMPLE 2 and described at TABLE 2 were taken using a Brookfield viscometer, LV-DV II model, spindle 04 at 0.3 rpm from 200 g of sample equilibrated at 25 °C during 1 minute.

Compositions prepared using a combination of succinoglycan and hydroxypropyl galactomannan (sample SH+HP105) demonstrated superior viscosity results having comparable viscosity profile observed with the use of succinoglycan exclusively (sample SH). However, compositions using a combination of succinoglycan and cationic galactomannan (sample SH+C13S) resulted in a considerably lower viscosity if compared to the use of succinoglycan exclusively (sample SH).

EXAMPLE 3 - Viscosity evaluation of compositions having a combination of succinoglycan and hydroxypropyl galactomannan.

Sample S1 - In a glass watch, 0.8 g of the hydroxypropyl galactomannan (Jaguar® HP 105 from Syensqo) and 1.4 g of succinoglycan (Rheozan® SH from Syensqo) were mixed with 4.0 g of glycerin, at room temperature. Then, half of water (39.7 g) was weighted in a beaker followed by the addition of the mixture of hydroxypropyl galactomannan, succinoglycan and glycerin, under stirring at 300 rpm using a four-blade stirrer and raising to 1000 rpm until homogeneity during 10 min. The gel phase was obtained.

In parallel, the oil phase was prepared by weighting the other half of water (39.7 g) and mixing to 3.00 g of the emulsifier (Alkamuls ® SE 55) and 9.0 g of the oils (2 g of avocado oil, 2 g of sunflower oil and 1 g of triglyceride capric/caprylic oil and 4.0 g coconut oil) under stirring at 300 rpm for 5 min, until homogeneity was acheived.

The oil phase was mixed to the gel phase at 1000 rpm until full homogeneity. After this, stirring was kept for 10 minutes. At this point, the phenoxyethanol and the tocopherol were added and the composition was stirred for 10 min.

Following the protocol listed above, different compositions (S2 and S3) were prepared varying the amount of ingredients and viscosity. The compositions are described in TABLE 3 below.

TABLE 3: Personal Care Compositions having a combination of hydroxypropyl galactomannan and succinoglycan with different viscosities.

It was demonstrated that the combination of the present invention allowed preparation of personal care compositions having low to high viscosity.

Therefore, surprisingly, it has been found that the combination of hydroxyalkyl galactomannan or carboxymethyl hydroxyalkyl galactomannan and succinoglycan was able to not only control and increase the viscosity of home and personal care compositions, but also to improve the rheological profile of said compositions.

Claims

1. The use of a combination comprising hydroxyalkyl galactomannan or carboxymethyl hydroxyalkyl galactomannan and succinoglycan in home and personal care compositions.

2. The use according to claim 1 , wherein said hydroxyalkyl group is a C-i-Ce hydroxyalkyl groups, chosen from the group consisting of: a hydroxymethyl group, a hydroxyethyl group, a hydroxypropyl group and a hydroxybutyl group, preferably a hydroxypropyl group.

3. The use according to claims 1 or 2, wherein said carboxymethyl hydroxyalkyl galactomannan exhibits a DS for anionic substituent groups ranging from 0.01 to 3.0, preferably from 0.01 to 2.0, more preferably from 0.05 to 1 .5.

4. The use according to any one of the preceding claims, wherein said hydroxyalkyl galactomannan or carboxymethyl hydroxyalkyl galactomannan has a degree of hydroxyalkylation comprised between 0.1 and 1.0, preferably between 0.2 and 0.9.

5. The use according to any one of the preceding claims, wherein the hydroxyalkyl galactomannan or carboxymethyl hydroxyalkyl galactomannan has an average molecular weight of at least 100,000, preferably in the range of 200,000 to 2,000,000 g/mol.

6. The use according to any one of the preceding claims, wherein the combination of hydroxyalkyl galactomannan or carboxymethyl hydroxyalkyl galactomannan and succinoglycan is used in a proportion between 0.1 to 5 weight percent, preferably between 0.5 a 3 weight percent, based on the total weight of the composition.

7. The use according to any one of the preceding claims, wherein the combination of hydroxyalkyl galactomannan or carboxymethyl hydroxyalkyl galactomannan and succinoglycan is used in a ratio from 1 :5 to 5: 1 , preferably from 1 :2 to 2: 1 in the home and personal care composition.

8. The use according to any one of the preceding claims, wherein the combination increases the viscosity and the yield stress of a home and personal care composition.

9. The use according to any one of the preceding claims, wherein the combination increases viscosity properties of the composition in a range between 100 to 2,000,000 mPa.s, preferably 100,000 and 1 ,700,000 mPa.s.

10. The use according to any one of the preceding claims, wherein the combination increases the yield stress of the composition up to values in a range from 0.01 to 100 Pa, preferably from 30 to 60 Pa.

11. A home and personal care composition comprising a combination of hydroxyalkyl galactomannan or carboxymethyl hydroxyalkyl galactomannan and succinoglycan.

12. The home personal care composition according to claim 11 , wherein the composition further optionally comprises at least one emulsifier, emollient, moisturizer, skin protectant, binder, chelating agent, deodorant, pest repellant, odoriferous material, antimicrobial agent, antifungal agent, antibiotic, antiperspirant agent, a mineral oil, a vegetable oil, an animal oil, a synthetic oil, a silicone oil and mixtures thereof), opacifying and pearlescent agent, preservative, propellant, spreading agent, exfoliant, keratolytic agent, vitamin, sunscreen agent, artificial tanning accelerator, ultraviolet light absorber, pH adjusting agent, botanical, skin bleaching agent dye, inorganic particles, buffers, oxidizing agents, reducing agent, rheology modifier, pigment, anti-inflammatory agent, particulate, microabrasive, abrasive, surfactant, hair conditioning agent, hair fixative, film-former, disinfectant, insecticide, fungicide, antidandruff agent, adhesive, absorbent, colorant, humectant, oil (such as antioxidant, hair colorant, topical anesthetic, fragrance, fragrance solubilizer, and combinations thereof.

13. The home and personal care composition according to claims 11 or 12, wherein the composition is a skin care, a hair care composition, a surface treatment composition, a surface finishing composition and/or cleaning composition.

14. The home and personal care composition according to claims 11 to 13, wherein the composition is a personal care composition, preferably a skin care composition.

15. The personal care composition according to any one of claims 11 to 14, wherein the composition is a semi-solid composition in the form of a cream, a lotion, or a paste.

16. A method of increasing the viscosity and the yield stress of a home and personal care composition comprising adding a combination of hydroxyalkyl galactomannan or carboxymethyl hydroxyalkyl galactomannan and succinoglycan.