Hard surface cleaning composition
A hard surface cleaning composition with terpene alkoxylated and alkoxylated fatty alcohol compounds effectively addresses the challenge of stubborn stains on metal tableware, achieving thorough cleaning.
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- SPECIALTY OPERATIONS FRANCE
- Filing Date
- 2024-12-09
- Publication Date
- 2026-06-18
AI Technical Summary
Existing dishwashing detergents fail to effectively remove stubborn stains and residues from heavily soiled tableware, particularly metal items, despite the incorporation of terpene alkoxylated compounds, leaving aesthetic and hygiene concerns unaddressed.
A hard surface cleaning composition comprising a terpene alkoxylated compound (Compound A) and alkoxylated fatty alcohol (Compound B) is formulated, enhancing cleaning performance on heavily soiled tableware, especially metal surfaces.
The composition provides superior cleaning efficacy on heavily soiled metal tableware, ensuring complete removal of stains and residues, meeting high cleanliness standards.
Smart Images

Figure PCTCN2024137844-FTAPPB-I100001 
Figure PCTCN2024137844-FTAPPB-I100002 
Figure PCTCN2024137844-FTAPPB-I100003
Abstract
Description
HARD SURFACE CLEANING COMPOSITIONFIELD OF THE INVENTION
[0001] The present invention relates to a hard surface cleaning composition comprising a terpene alkoxylated compound (Compound A) and alkoxylated fatty alcohol (Compound B) . In addition, the present invention relates to a method washing tableware surface.BACKGROUND OF THE INVENTION
[0002] In modern households, automatic dishwashers have become a common household appliance and are widely used by countless families around the world. They have brought great convenience to people's daily lives by saving time and effort in dealing with the task of washing dishes. However, despite their prevalence and general effectiveness, there are still significant limitations when it comes to handling certain types of heavily soiled tableware. For instance, tableware that has been used to serve rich, greasy foods like roasted meats with thick gravy or dishes with stubborn food residues stuck on them due to long periods of use or improper storage often proves difficult to clean completely by the regular operation of automatic dishwashers. Even with the repeated cycles of washing and the application of common dishwashing detergents available in the market, there will still be visible stains or residues remaining on these heavy soiled items, which is not only unappealing aesthetically but may also pose potential hygiene risks if not properly removed.
[0003] The prior art has made some attempts to address this issue. For example, US 20060079426 discloses a terpene alkoxylated compound which can be incorporated into the cleaning formulation of dishwashing detergents, it is expected to improve the cleaning ability of the detergents for heavy soiled tableware. However, in practical applications, it has been found that although there is a certain degree of improvement in the cleaning effect compared to traditional dishwashing detergents without this additive, the result is still not satisfactory enough. There are still cases where significant amounts of stains or residues are left on the heavy soiled tableware after the washing process, failing to meet the high standards that consumers expect for a truly clean set of tableware.
[0004] Given the above situation, there remains an urgent and unmet need in the market to develop more effective dishwashing detergents that can successfully clean heavy soiled tableware.SUMMARY OF THE INVENTION
[0005] In one aspect of the present invention, it is provided a hard surface cleaning composition comprising a terpene alkoxylated compound (Compound A) and alkoxylated fatty alcohol (Compound B) . The hard surface cleaning composition has improved cleaning performance on heavily soiled tableware, particularly metal tableware.
[0006] In another aspect of the present invention, it is provided a method of washing tableware, comprising the step of applying the hard surface cleaning composition as illustrated above to the hard surface.DETAILED DESCRIPTION
[0007] Throughout the description, including the claims, the term "comprising one" or “comprising a" should be understood as being synonymous with the term "comprising at least one" , unless otherwise specified. The terms "between" and “from …to…” should be understood as being inclusive of the limits.
[0008] The articles “a” , “an” and “the” are used to refer to one or to more than one (i.e., to at least one) of the grammatical object of the article.
[0009] 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.
[0010] As used herein, the term "alkyl" means a saturated hydrocarbon radical, which may be straight, branched or cyclic, such as, methyl, ethyl, n-propyl, iso-propyl, n-butyl, sec-butyl, t-butyl, pentyl, hexyl, heptyl, octyl, nonyl, decyl, iso-decyl, undecyl, dodecyl, tridecyl, iso-tridecyl tetradecyl, pentadecyl, hexadecyl, heptadecyl, octadecyl, nonadecyl, eicosyl, docosyl, and behenyl.
[0011] As used herein, the terminology " (Cn-Cm) " in reference to an organic group, wherein n and m are each integer, indicates that the group may contain from n carbon atoms to m carbon atoms per group.
[0012] As used herein, the term "cleaning composition" means a composition aimed to the washing / cleaning tableware surface by automatic dishwashers, preferably metal tableware.
[0013] The Compound A
[0014] In one aspect of the present invention, it is provided a hard surface cleaning composition, comprising a compound A represented by formula I) : Z-CH2-CH2-O- [CH (R1) -CH (R2) -O] n- [CH2CH2-O] m-H (I) wherein: Z represents a group having the following formula: R1 and R2, which are identical or different, represent hydrogen or a methyl group, provided that at least one of groups R1 or R2 is other than hydrogen; n is an integer or a fractional number from 3 to 5, and m is an integer or a fractional number from 6 to 10.
[0015] The hard surface cleaning composition of by the present invention can provided favorable cleaning performance to heavy soiled tableware, particularly metal tableware.
[0016] In one embodiment of the present invention, radical Z is selected from radicals with formulas c) to g) .
[0017] It should be noted that radical Z is more particularly attached to the remainder of the chain via one of carbon atoms 1 to 6; carbon atoms 1, 5 and 6 are preferred.
[0018] Further, radical Z can be substituted on at least one of its carbon atoms by two C1-C6 alkyl radicals, preferably two methyl radicals.
[0019] More particularly, the 7 carbon is substituted by these two alkyl radicals, more precisely two methyl radicals.
[0020] One preferred compound A of the invention is, therefore, constituted by a compound in which radical Z corresponds to one of those appearing in figures c) to g) , and more preferably radicals d) and e) ; radical Z being substituted by two methyl radicals located on the 7 carbons.
[0021] In one embodiment of the invention, radical Z corresponds to formulas d) or e) , bonded to the remainder of the chain via the 5 or 1 carbon, and carrying two methyl substituents on the 7 carbon.
[0022] Preferably, R1, R2, which may or may not be identical, represent a hydrogen or a methyl radical. Preferably, one of R1 and R2 represent a hydrogen atom, the other represents methyl.
[0023] In one embodiment of the present invention, n is an integer or a fractional number from 3 to 5 inclusive, and m is an integer or a fractional number from 6 to 10, limits excluded.
[0024] In one embodiment of the present invention, the structure unit [CH (R1) -CH (R2) -O] and [CH2CH2-O] can appear in the formula I in alternating, block, or random forms.
[0025] The compound A employed in the present invention presents in an amount ranging from 1 to 20 wt. %, preferably 2 to 18 wt. %, more preferably 5 to 15 wt. %, based on the total weight of the hard surface cleaning composition.The Compound B
[0026] The compound B employed in the present invention is represented by formula II: R5- [CH (R3) -CH (R4) -O] p- [CH2CH2-O] q-H II wherein R5 is a C8-C18 alkyl, R3 and R4 which are identical or different, represent hydrogen or a methyl group, provided that at least one of groups R3 or R4 is other than hydrogen; p is an integer or a fractional number from 0 to 20, preferably 1 to 15, more preferably 1 to 15, and q is an integer or a fractional number from 0 to 20, preferably 1 to 15, more preferably 1 to 15; provided that p and q are not simultaneously 0.
[0027] In one embodiment of the present invention, R5 is a C10-C16 alkyl.
[0028] In one embodiment of the present invention, the structure unit [CH (R3) -CH (R4) -O] and [CH2CH2-O] can appear in the formula II in alternating, block, or random forms.
[0029] In one embodiment of the present invention, the compound B presents in an amount ranging from 1 to 20 wt. %, preferably 2 to 18 wt. %, more preferably 5 to 15 wt. %, based on the total weight of the hard surface cleaning composition.
[0030] Hard surface cleaning composition
[0031] As used herein "hard surface cleaning composition" refers to liquid and granular detergent compositions for cleaning hard surfaces such as floors, walls, bathroom tile, and the like.
[0032] In one embodiment of the present invention, the hard surface cleaning composition is a dish washing detergent formulation.
[0033] In another embodiment of the present invention, the hard surface cleaning composition is the composition for cleaning metal tableware.
[0034] In addition to the ingredients described herein above, the hard surface cleaning compositions may comprise conventional ingredients, preferably selected from alkalinity sources, builders (i.e. detergency builders including the class of chelating agents / sequestering agents) , bleaching systems, anti-scalants, corrosion inhibitors, surfactants, antifoams and / or enzymes. The pH of the detergent composition typically is in the alkaline region, preferably >9, more preferably >10.
[0035] Suitable caustic agents include alkali metal hydroxides, e.g. sodium or potassium hydroxides, and alkali metal silicates, e.g. sodium metasilicate. Especially effective is sodium silicate having a mole ratio of SiO2Na2O of from about 1.0 to about 3.3, preferably from about 1.8 to about 2.2, normally referred to as sodium disilicate.
[0036] Builder Materials
[0037] Suitable builder materials (phosphates and non-phosphate builder materials) are well known in the art.
[0038] The builder material usable herein can be any one or mixtures of the various known phosphate and non-phosphate builder materials. Examples of suitable non-phosphate builder materials are the alkali metal citrates, carbonates and bicarbonates; and the salts of nitrilotriacetic acid (NTA) ; methylgiycine diacetic acid (MGDA) ; glutaric di acetic acid (GLDA) , polycarboxylates such as polymaleates, polyacetates, polyhydroxyacrylates, polyacrylate / polymaleate and polyacrylate / polymethacrylate copolymers, as well as zeolites; layered silicas and mixtures thereof.
[0039] Examples of phosphate builders are NTA, EDTA, MGDA, GLDA, citrates, carbonates, bicarbonates, polyacrylate / polymaleate, maleic a hydride / (meth) acrylic acid copolymers, e.g. Sokalan CP5 available from BASF, STTP (sodiumtripolyphosphate) , preferred phosphate builder is STTP.
[0040] The weight ratio of those builders regarding the total weight of the composition is the typical weight ratio in the dish washing composition application, e.g. it is comprised between 1 and 70, preferably 5 and 60, more preferably 10 and 60.
[0041] Advantageously, the composition of the invention does not comprise phosphate builders.
[0042] Antiscalants
[0043] The antiscalants are those typically known by the person skilled in the art, these include polyacrylates of molecular weight from 1, 000 to 400, 000 examples of which are supplied by Dow, BASF and AkzoNobel. and polymers based on acrylic acid combined with other moieties. These include acrylic acid combined with maleic acid, such as Sokalan CP5 and CP7 supplied by BASF or Acusol 479N supplied by Dow; with phosphonate such as Casi 773 supplied by Buckman Laboratories; with maleic acid and vinyl acetate such as polymers supplied by Huls; with acrylamide; with sulfophenol methallyl ether such as Aquatreat AR 540 supplied by AkzoNobel; with 2-acrylamido-2-methylpropane sulfonic acid such as Acusol 587D supplied by Dow or such as K-775 supplied by Goodrich; with 2-acrylamido-2-methylpropane sulfonic acid and sodium styrene sulfonate such as K-798 supplied by Goodrich; with methyl methacrylate, sodium methallyl sulfonate and sulfophenol methallyl ether such as Alcosperse 240 supplied by AkzoNobel; polymaleates such as Belclene 200 supplied by BWA; polymethacrylates such as Tamol 850 from Dow; polyaspartates; ethylenediamine disuccinate; organo polyphosphonic acids and their salts such as the sodium salts of amino tri (methylenephosphonic acid) and ethane 1-hydroxy-1, 1-diphosphonic acid.
[0044] The weight ratio of anti-scalant regarding the total weight of the composition is ratio typically known from the person skilled in the art, especially comprised between 0.05%to about 10%by weight, preferably from 0.1%to about 5%by weight, most preferably from about 0.2%to about 5%by weight.
[0045] Bleaches
[0046] Suitable bleaches for use in the system according to the present invention may be halogen-based bleaches or oxygen-based bleaches. More than one kind of bleach may be used,
[0047] As halogen bleach, alkali metal hypochlorite may be used. Other suitable halogen bleaches are alkali metal salts of di-and tri-chloro and di-and tri-bromo cyanuric acids. Suitable oxygen-based bleaches are the peroxygen bleaches, such as sodium perborate (terra-or monohydrate) , sodium carbonate or hydrogen peroxide.
[0048] The amounts of hypochlorite, di-chloro cyanuric acid and sodium perborate or percarbonate preferably do not exceed 15%, and 25%by weight, respectively, e.g. from 1-10%and from 4-25%and by weight, respectively.
[0049] Enzymes
[0050] Amylolytic and / or proteolytic enzymes would normally be used as an enzymatic component. The amylolytic enzymes usable herein can be those derived from bacteria or fungi.
[0051] Minor amounts of various other components may be present in the chemical cleaning system. These include solvents, and hydrotropes such as ethanol, isopropanol and xylene sulfonates, flow control agents; enzyme stabilizing agents; anti-redeposition agents; corrosion inhibitors; and other functional additives.
[0052] The composition of the invention can be formulated into various forms, for example into the form of a tablet, into powder or into the form of a liquid composition, preferably into the form of powder or tablet.
[0053] In another aspect of the present invention, the present invention provides a method of washing tableware, comprising the step of applying the hard surface cleaning composition as illustrated above to the hard surface.
[0054] In one embodiment of the present invention, the tableware surface is heavy soiled. In another embodiment of the present invention, the tableware is metal tableware. EXAMPLE
[0055] 1. Materials
[0056] The hard surface cleaning composition of the present invention was prepared by mixing all the ingredients until a homogeneous mixture obtained. The hard surface cleaning composition obtained were listed below, wherein “S” refers to the example of the present invention, “CS” refers to the comparative example. All the numbers are in weight percentage (wt. %) . Table 1: The hard surface cleaning composition
[0057] 3. Preparation of soiled stainless steel casserole:
[0058] 60g Spaghetti Bolognese and 30g cheese are added into the stainless steel casserole, Pre-heating the oven to 180℃ for 15 min and then starting to bake the simple food for 15 min.
[0059] After the food is cooled down (approximately 30 minutes) . Remove the food from the casserole with a silicone spatula. And then leave the casserole overnight under a constant temperature and humidity room.
[0060] The obtained casserole was put in an autodish washing machine and washed with the hard surface cleaning composition as illustrated in table 1. The washing condition is listed as below. The cleaning performance was determined by visual, 1 means the worst, which corresponds to food stains residue was covered on the full surface of stainless steel casserole, 5 means the best performance which corresponds to no visible residue was observed on the stainless steel casserole. The performance is listed in Table 3. Table 2: washing condition Table 3: cleaning performance.
[0061] As shown in the table 3, the combination of terpene alkoxylated compound (compound A) and alkoxylated fatty alcohol (compound B) and can provide better deep cleaning performance than only compound A or B.
[0062] The IKW Ballast soil listed in Table 2 was prepared from the ingredients as below by the following steps: 1) Combine the vegetable oil and whole egg and mix thoroughly. 2) Add ketchup and mustard, still stirring vigorously. 3) Melt the fats, allow to cool to approximately 40'C, then add to the mixture and blend well. 4) Stir in the cream and milk. 5) Add the powdered solid constituents and mix everything to a smooth paste. 6) Put 50g of the soil mix into plastic pots and freeze.
Claims
1.A hard surface cleaning composition, comprising:a) a compound A represented by formula I)Z-CH2-CH2-O- [CH (R1) -CH (R2) -O] n- [CH2CH2-O] m-H (I)wherein:Z represents a group having the following formula:R1 and R2, which are identical or different, represent hydrogen or a methyl group, provided that at least one of groups R1 or R2 is other than hydrogen;n is an integer or a fractional number from 3 to 5, andm is an integer or a fractional number from 6 to 10;andb) a compound B represented by formula II:R5- [CH (R3) -CH (R4) -O] p- [CH2CH2-O] q-H IIwherein R5 is a C8-C18 alkyl, R3 and R4 which are identical or different, represent hydrogen or a methyl group, provided that at least one of groups R3 or R4 is other than hydrogen;p is an integer or a fractional number from 0 to 20, preferably 1 to 15, more preferably 1 to 15, andq is an integer or a fractional number from 0 to 20, preferably 1 to 15, more preferably 1 to 15;provided that p and q are not simultaneously 0.2.The hard surface cleaning composition according to claim 1, wherein the compound A presents in an amount ranging from 1 to 20 wt. %, preferably 2 to 18 wt. %, more preferably 5 to 15 wt. %, based on the total weight of the hard surface cleaning composition.3.The hard surface cleaning composition according to claim 1, wherein the compound B presents in an amount ranging from 1 to 20 wt. %, preferably 2 to 18 wt. %, more preferably 5 to 15 wt. %, based on the total weight of the hard surface cleaning composition.4.The hard surface cleaning composition according to claim 1, wherein the weight ratio of A to B is in the range from 1: 5 to 5: 1, preferably 1: 3 to 3: 1.5.The hard surface cleaning composition according to claim 1, wherein the hard surface cleaning composition is a dish washing detergent formulation.6.A method of washing tableware, comprising the step of applying the hard surface cleaning composition according to any one of claims 1 to 5.7.The method according to claim 6, wherein the tableware surface is heavy soiled.8.The method according to claim 6 or 7, wherein the tableware is metal tableware.