WO2022047604A1 - Detergent granule - Google Patents
Detergent granule Download PDFInfo
- Publication number
- WO2022047604A1 WO2022047604A1 PCT/CN2020/112760 CN2020112760W WO2022047604A1 WO 2022047604 A1 WO2022047604 A1 WO 2022047604A1 CN 2020112760 W CN2020112760 W CN 2020112760W WO 2022047604 A1 WO2022047604 A1 WO 2022047604A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- group
- alkyl
- amine oxide
- detergent granule
- detergent
- Prior art date
Links
- 239000003599 detergent Substances 0.000 title claims abstract description 91
- 239000008187 granular material Substances 0.000 title claims abstract description 73
- 150000008051 alkyl sulfates Chemical class 0.000 claims abstract description 55
- 150000001412 amines Chemical class 0.000 claims abstract description 37
- 125000000217 alkyl group Chemical group 0.000 claims abstract description 17
- 125000004432 carbon atom Chemical group C* 0.000 claims abstract description 10
- 239000000203 mixture Substances 0.000 claims description 72
- 238000004140 cleaning Methods 0.000 claims description 40
- 239000004094 surface-active agent Substances 0.000 claims description 38
- -1 carbonylamino, carbonyloxy, oxycarbonyloxy, aminocarbonylamino Chemical group 0.000 claims description 26
- 239000004744 fabric Substances 0.000 claims description 14
- 238000005406 washing Methods 0.000 claims description 9
- 125000002768 hydroxyalkyl group Chemical group 0.000 claims description 4
- ONLRKTIYOMZEJM-UHFFFAOYSA-N n-methylmethanamine oxide Chemical compound C[NH+](C)[O-] ONLRKTIYOMZEJM-UHFFFAOYSA-N 0.000 claims description 4
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims description 3
- 125000006273 (C1-C3) alkyl group Chemical group 0.000 claims description 2
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims description 2
- 239000005977 Ethylene Substances 0.000 claims description 2
- 125000003545 alkoxy group Chemical group 0.000 claims description 2
- 125000005037 alkyl phenyl group Chemical group 0.000 claims description 2
- 125000002947 alkylene group Chemical group 0.000 claims description 2
- 125000003917 carbamoyl group Chemical group [H]N([H])C(*)=O 0.000 claims description 2
- 125000006297 carbonyl amino group Chemical group [H]N([*:2])C([*:1])=O 0.000 claims description 2
- 125000001301 ethoxy group Chemical group [H]C([H])([H])C([H])([H])O* 0.000 claims description 2
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 claims description 2
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 claims description 2
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 2
- QUSNBJAOOMFDIB-UHFFFAOYSA-N monoethyl amine Natural products CCN QUSNBJAOOMFDIB-UHFFFAOYSA-N 0.000 claims description 2
- 239000002736 nonionic surfactant Substances 0.000 claims description 2
- 125000002572 propoxy group Chemical group [*]OC([H])([H])C(C([H])([H])[H])([H])[H] 0.000 claims description 2
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 claims description 2
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 claims description 2
- 150000001875 compounds Chemical class 0.000 claims 1
- 239000002245 particle Substances 0.000 description 54
- 238000012360 testing method Methods 0.000 description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 20
- 238000000034 method Methods 0.000 description 15
- 230000000052 comparative effect Effects 0.000 description 10
- 150000003839 salts Chemical class 0.000 description 10
- 239000007844 bleaching agent Substances 0.000 description 7
- 238000009826 distribution Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 7
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 6
- 150000001298 alcohols Chemical class 0.000 description 6
- 230000008901 benefit Effects 0.000 description 6
- MWNQXXOSWHCCOZ-UHFFFAOYSA-L sodium;oxido carbonate Chemical compound [Na+].[O-]OC([O-])=O MWNQXXOSWHCCOZ-UHFFFAOYSA-L 0.000 description 6
- 239000000243 solution Substances 0.000 description 6
- 238000007596 consolidation process Methods 0.000 description 5
- 239000004615 ingredient Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 239000002304 perfume Substances 0.000 description 5
- 239000007787 solid Substances 0.000 description 5
- 238000010998 test method Methods 0.000 description 5
- 150000001204 N-oxides Chemical class 0.000 description 4
- 238000013019 agitation Methods 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 229920000642 polymer Polymers 0.000 description 4
- 102000004190 Enzymes Human genes 0.000 description 3
- 108090000790 Enzymes Proteins 0.000 description 3
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 3
- 238000004851 dishwashing Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 239000011777 magnesium Substances 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 239000002453 shampoo Substances 0.000 description 3
- 229910000029 sodium carbonate Inorganic materials 0.000 description 3
- 229910052938 sodium sulfate Inorganic materials 0.000 description 3
- 235000011152 sodium sulphate Nutrition 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- 150000003626 triacylglycerols Chemical class 0.000 description 3
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 description 2
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 239000004115 Sodium Silicate Substances 0.000 description 2
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 238000005054 agglomeration Methods 0.000 description 2
- 230000002776 aggregation Effects 0.000 description 2
- 150000005323 carbonate salts Chemical class 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 125000002091 cationic group Chemical group 0.000 description 2
- 239000003240 coconut oil Substances 0.000 description 2
- 235000019864 coconut oil Nutrition 0.000 description 2
- 230000002542 deteriorative effect Effects 0.000 description 2
- 235000014113 dietary fatty acids Nutrition 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 239000000975 dye Substances 0.000 description 2
- 239000000194 fatty acid Substances 0.000 description 2
- 229930195729 fatty acid Natural products 0.000 description 2
- 150000004665 fatty acids Chemical class 0.000 description 2
- 239000008233 hard water Substances 0.000 description 2
- 238000011068 loading method Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000003094 microcapsule Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000003346 palm kernel oil Substances 0.000 description 2
- 235000019865 palm kernel oil Nutrition 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 150000004760 silicates Chemical class 0.000 description 2
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 2
- 229910052911 sodium silicate Inorganic materials 0.000 description 2
- 238000001694 spray drying Methods 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- FKNQFGJONOIPTF-UHFFFAOYSA-N Sodium cation Chemical compound [Na+] FKNQFGJONOIPTF-UHFFFAOYSA-N 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- 229910021536 Zeolite Inorganic materials 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 150000001340 alkali metals Chemical class 0.000 description 1
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 1
- 150000001342 alkaline earth metals Chemical class 0.000 description 1
- 150000003973 alkyl amines Chemical class 0.000 description 1
- 239000002280 amphoteric surfactant Substances 0.000 description 1
- 125000000129 anionic group Chemical group 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 238000004061 bleaching Methods 0.000 description 1
- 239000000872 buffer Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 238000013375 chromatographic separation Methods 0.000 description 1
- 230000001143 conditioned effect Effects 0.000 description 1
- 238000010411 cooking Methods 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- SYELZBGXAIXKHU-UHFFFAOYSA-N dodecyldimethylamine N-oxide Chemical compound CCCCCCCCCCCC[N+](C)(C)[O-] SYELZBGXAIXKHU-UHFFFAOYSA-N 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 239000000499 gel Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000008202 granule composition Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 150000002466 imines Chemical class 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000004900 laundering Methods 0.000 description 1
- 229940048866 lauramine oxide Drugs 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 229910001629 magnesium chloride Inorganic materials 0.000 description 1
- 235000011147 magnesium chloride Nutrition 0.000 description 1
- 229910052943 magnesium sulfate Inorganic materials 0.000 description 1
- 235000019341 magnesium sulphate Nutrition 0.000 description 1
- 238000005360 mashing Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000002324 mouth wash Substances 0.000 description 1
- 235000012149 noodles Nutrition 0.000 description 1
- SBOJXQVPLKSXOG-UHFFFAOYSA-N o-amino-hydroxylamine Chemical class NON SBOJXQVPLKSXOG-UHFFFAOYSA-N 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 235000019198 oils Nutrition 0.000 description 1
- 150000004965 peroxy acids Chemical class 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000001953 recrystallisation Methods 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 238000005201 scrubbing Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000007873 sieving Methods 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 1
- 235000017557 sodium bicarbonate Nutrition 0.000 description 1
- 235000017550 sodium carbonate Nutrition 0.000 description 1
- 229960001922 sodium perborate Drugs 0.000 description 1
- 235000019794 sodium silicate Nutrition 0.000 description 1
- YKLJGMBLPUQQOI-UHFFFAOYSA-M sodium;oxidooxy(oxo)borane Chemical compound [Na+].[O-]OB=O YKLJGMBLPUQQOI-UHFFFAOYSA-M 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 229910052723 transition metal Inorganic materials 0.000 description 1
- 150000003624 transition metals Chemical class 0.000 description 1
- UFTFJSFQGQCHQW-UHFFFAOYSA-N triformin Chemical compound O=COCC(OC=O)COC=O UFTFJSFQGQCHQW-UHFFFAOYSA-N 0.000 description 1
- 230000002087 whitening effect Effects 0.000 description 1
- 239000010457 zeolite Substances 0.000 description 1
- 239000002888 zwitterionic surfactant Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/66—Non-ionic compounds
- C11D1/83—Mixtures of non-ionic with anionic compounds
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D17/00—Detergent materials or soaps characterised by their shape or physical properties
- C11D17/06—Powder; Flakes; Free-flowing mixtures; Sheets
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/02—Anionic compounds
- C11D1/12—Sulfonic acids or sulfuric acid esters; Salts thereof
- C11D1/14—Sulfonic acids or sulfuric acid esters; Salts thereof derived from aliphatic hydrocarbons or mono-alcohols
- C11D1/146—Sulfuric acid esters
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/66—Non-ionic compounds
- C11D1/75—Amino oxides
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D2111/00—Cleaning compositions characterised by the objects to be cleaned; Cleaning compositions characterised by non-standard cleaning or washing processes
- C11D2111/10—Objects to be cleaned
- C11D2111/12—Soft surfaces, e.g. textile
Definitions
- the present invention relates to a detergent granule that can be used to make cleaning products, especially granular detergent products.
- Mid-cut alkyl sulfate (MCAS or AS) with a C 6 -C 16 branched or unbranched unalkoxylated alkyl group has been discovered to be effective for suds-boosting when it is used as a co-surfactant in cleaning compositions, particularly in dry laundry detergent compositions.
- MCAS Mid-cut alkyl sulfate
- AS a C 6 -C 16 branched or unbranched unalkoxylated alkyl group
- WO2009010911 discloses the use of MCAS for boosting suds in a LAS-based surfactant system and forming a detergent composition with a reduced total surfactant level, but without apparently deteriorating the sudsing profile of the detergent composition.
- more enhanced suds-boosting effect is desirable for consumers who hand-wash fabrics. Particularly, these consumers consider copious suds in the wash as the primary and most desirable signal of cleaning.
- detergent compositions capable of generating more suds during the wash.
- Amine oxides are very widely used as co-surfactants in consumer products such as shampoos, conditioners, and detergent products, as providing suds-boosting benefit.
- amine oxides are mainly used in the liquid form of detergent products, but not commonly used in dry detergent products.
- spray-drying process and agglomeration process are the two main processes for making dry detergent products.
- Amine oxides have poor thermo-stability thus resulting in processing difficulties during spray-drying.
- amino oxides which exist in liquid/solution form, may have negative interactions with other ingredients (e.g., LAS) in dry detergent products and result in granules with poor flowability and difficult to handle.
- the present invention has discovered, surprisingly and unexpectedly, that by making a detergent granule comprising MCAS and an amine oxide, the amine oxide can be successfully added into a dry detergent product and the suds-boosting effect is significantly enhanced. Further, when such detergent granule contains MCAS and the amine oxide in a preferred weight ratio (e.g., from about 20: 1 to about 1: 1) , a more desirable suds-boosting effect can be achieved.
- the detergent granule comprising MCAS and amine oxide can provide comparative or even superior flowability compare with a detergent granule without adding amine oxide.
- the present invention relates to a cleaning composition
- a cleaning composition comprising from about 0.1%to about 50%, preferably from 0.2%to 30%, more preferably from 0.3%to 20%, by weight of such cleaning composition, of the above-mentioned detergent granule.
- the present invention relates to the use of the above-mentioned cleaning composition for washing fabrics.
- the term “granule” or “particle” refers to a solid matter of minute quantity, such as a powder, granule, encapsulate, microcapsule, and/or prill.
- the granules or particles of the present invention can be spheres, rods, plates, tubes, squares, rectangles, discs, stars or flakes of regular or irregular shapes, but they are non-fibrous.
- the granules or particles of the present invention may have a median particle size of about 2000 ⁇ m or less, as measured according to the Median Particle Size Test described herein.
- the particles of the present invention have a median particle size ranging from about 1 ⁇ m to about 2000 ⁇ m, more preferably from about 10 ⁇ m to about 1800 ⁇ m, still more preferably from about 50 ⁇ m to about 1700 ⁇ m, still more preferably from about 100 ⁇ m to about 1500 ⁇ m, still more preferably from about 250 ⁇ m to about 1000 ⁇ m, most preferably from about 300 ⁇ m to about 800 ⁇ m, as measured according to the Median Particle Size Test described herein.
- detergent granule refers to particles containing one or more detersive actives, including but not limited to surfactants, bleaching agents, enzymes, polymers, chelants, and combinations thereof.
- the term “cleaning composition” includes, unless otherwise indicated, granular or powder-form all-purpose or “heavy-duty” washing agents, especially cleaning detergents, for fabrics, as well as cleaning auxiliaries such as bleach, rinse aids, additives, or pre-treat types; hand dishwashing agents or light duty dishwashing agents, especially those of the high-foaming type; machine dishwashing agents; mouthwashes, denture cleaners, car or carpet shampoos, bathroom cleaners; hair shampoos and hair-rinses; shower gels and foam baths and metal cleaners; as well as cleaning auxiliaries such as bleach additives or pre-treat types.
- the cleaning composition is a solid laundry detergent composition, and more preferably a free-flowing particulate laundry detergent composition (i.e., a granular laundry detergent product) .
- Median Particle Size refers to the mid-point of the distribution of the particle sizes of the detergent granule, as measured by the Sieve Test as disclosed herein.
- the term “aspect ratio” refers to the ratio of the largest diameter of an article over the smallest diameter of such article orthogonal to the largest diameter.
- water-soluble refers to a solubility of more than about 25 grams per liter (g/L) of deionized water measured at 20°C and under the atmospheric pressure.
- composition contains less than about 1%, preferably less than about 0.5%, of ingredients other than those listed.
- the terms “essentially free of, ” “substantially free of” or “substantially free from” means that the indicated material is present in the amount of from 0 wt%to about 0.5 wt%, or preferably from 0 wt%to about 0.1 wt%, or more preferably from 0 wt%to about 0.01 wt%, and most preferably it is not present at analytically detectable levels.
- substantially pure or “essentially pure” means that the indicated material is present in the amount of from about 99.5 wt%to about 100 wt%, preferably from about 99.9 wt%to about 100 wt%, and more preferably from 99.99 wt%to about 100 wt%, and most preferably all other materials are present only as impurities below analytically detectable levels.
- the AS surfactant used in the detergent granule of the present invention contains a branched or linear unalkoxylated alkyl group containing from about 6 to about 18 carbon atoms, and is therefore also referred to as Mid-Cut AS or MCAS.
- the AS has the generic formula of R-O-SO 3 - M + , while R is branched or linear unalkoxylated C 6 -C 16 alkyl group, and M is a cation of alkali metal, alkaline earth metal or ammonium. More preferably, the R group of the AS surfactant contains from about 8 to about 16 carbon atoms, more preferably from about 10 to about 14 carbon atoms, most preferably from about 12 to about 14 carbon atoms. R can be substituted or unsubstituted, and is preferably unsubstituted. R is substantially free of any alkoxylation. M is preferably a cationic of sodium, potassium, or magnesium, and more preferably M is a sodium cation.
- the detergent granule of the present invention contains a mixture of C 6 -C 16 AS surfactants, in which C 8 -C 14 AS surfactants are present in an amount ranging from about 85%to about 100%by total weight of the mixture.
- This mixture can be referred to as a “C 8 -C 14 -rich AS mixture. ” More preferably, such C 8 -C 14 -rich AS mixture contains from about 90 wt%to about 100 wt%, or from 92 wt%to about 98 wt%, or from about 94 wt%to about 96 wt%, or 100 wt% (i.e., pure) , of C 8 -C 14 AS.
- the detergent granule contains a mixture of C 6 -C 16 AS surfactants with from about 30 wt%to about 100 wt%or from about 50 wt%to about 99 wt%, preferably from about 60 wt%to about 95 wt%, more preferably from about 65 wt%to about 90 wt%, and most preferably from about 70 wt%to about 80 wt%of C 12 AS.
- such mixture of C 6 -C 16 AS surfactants may contain from about 10 wt%to about 100 wt%, preferably from 15 wt%to about 50 wt%, and more preferably from 20 wt%to about 30 wt%of C 14 AS. This mixture can be referred to as a “C 12 -C 14 -rich AS mixture. ”
- the detergent granule contains a mixture of AS surfactants that consists essentially of C 12 and/or C 14 AS surfactants.
- AS surfactants may consist essentially of from about 70 wt%to about 80 wt%of C 12 AS and from 20 wt%to about 30 wt%of C 14 AS, with little or no other AS surfactants therein.
- Such mixture may also consist of substantially pure C 12 AS, or alternatively, substantially pure C 14 AS.
- a commercially available AS mixture particularly suitable for practice of the present invention is V95 G from Cognis (Monheim, Germany) .
- the detergent granule of the present invention may contain a mixture of C 6 -C 16 AS surfactants comprising more than about 50 wt%, preferably more than about 60 wt%, more preferably more than 70 wt%or 80 wt%, and most preferably more than 90 wt%or even at 100 wt% (i.e., substantially pure) , of linear AS surfactants having an even number of carbon atoms, including, for example, C 6 , C 8 , C 10 , C 12 , C 14 , and C 16 AS surfactants.
- the mixture of C 6 -C 16 AS surfactants as described can be readily obtained by sulphonation of alcohol (s) with the corresponding numbers of carbon atoms.
- the required carbon chain length distribution can be obtained by using alcohols with the corresponding chain length distribution prepared either synthetically or extracted/purified from natural raw materials or formed by mixing corresponding pure starting materials.
- the mixture of C 6 -C 16 AS surfactants may be derived from naturally occurring triglycerides, such as those contained in palm kernel oil or coconut oil, by chemically processing such triglycerides to form a mixture of long chain alcohols and then sulphonating such alcohols to form AS surfactants.
- the mixture of alcohols derived from the naturally occurring triglycerides typically contain more than about 20 wt%of C 16 -C 16 alcohols.
- a mixture containing a lower proportion of C 16 -C 16 alcohols may be separated from the original mixture before the sulphonation step, in order to form the desired mixture of C 6 -C 16 AS surfactants as described hereinabove.
- the desired mixture of C 6 -C 16 AS surfactants can be readily obtained by separating and purifying the already formed AS mixtures. Suitable separation and purification methods include, but are not limited to: distillation, centrifugation, recrystallization and chromatographic separation.
- the amount of AS surfactant (s) present in the detergent granule of the present invention may range from about 50 wt%to about 95 wt%, and preferably from about 75 wt%to about 90 wt%by total weight of the detergent granule. With such a high level of AS surfactant (s) , the detergent granule of the present invention exhibits a high detersive activity and a very good dissolution profile.
- the detergent granule contains from about 75 wt%to about 90 wt%, preferably from about 80 wt%to about 86 wt%, of an AS mixture consisting essentially of from about 70 wt%to about 80 wt%of C 12 AS and from 20 wt%to about 30 wt%of C 14 AS.
- Amine oxides are amphoteric/zwitterionic surfactants that can be used in detergent products.
- amine oxides are synthesized from long-chain fatty molecules which are derived from, for example, lauric-containing triglyceride oils such as coconut oil or palm kernel oil.
- the amine oxide used in the detergent granule of the present invention may comprise alkyl amine oxide.
- the amine oxide used in the detergent granule of the present invention may have the formula (I) :
- R 1 is a C 8-22 alkyl, a C 8-22 hydroxyalkyl, a C 8-22 alkyl phenyl, or a R 4 -X-R 5 -group; wherein R 4 is a C 8-22 alkyl group, R 5 is a C 1-3 alkylene group, and X is a bivalent moiety selected from the group consisting of aminocarbonyl, carbonylamino, carbonyloxy, oxycarbonyloxy, aminocarbonylamino and combination and derivatives thereof; OY is an alkoxy moiety selected from the group consisting of ethoxy, propoxy, butoxy and combination thereof; m is from 0 to 3; R 2 and R 3 are independently selected from the group consisting of a C 1-3 alkyl group, a C 1-3 hydroxyalkyl group and combination thereof.
- R 1 in formula (I) is a C 10-18 alkyl or a R 4 -X-R 5 -group, wherein R 4 is a C 10-18 alkyl, R 5 is an ethylene or propylene group, and X is a carbonylamino group; OY is an ethoxy or propoxy group; m is from 0 to 3; R 2 and R 3 are independently selected from the group consisting of methyl, ethyl, propyl, isopropyl, 2-hydroethyl, 1-hydroxypropyl, 3-hydroxypropyl group and combination thereof.
- the amine oxide used in the detergent granule of the present invention may be selected from the group consisting of a C 10-18 alkyl dimethyl amine oxide, a C 8-16 alkyl ethoxy dihydroxy ethyl amine oxide, a C 10-18 alkyl amidopropyl dimethyl amine oxide, and combinations thereof.
- the amine oxide surfactant of the present invention is a C 12-16 alkyl dimethyl amine oxide, a C 12-16 alkylamidopropyl dimethyl amine oxide, or a combination thereof.
- the amine oxide may be coco alkyl dimethyl amine oxide, alkylamidopropylamine N-oxide, lauramine oxide or an any combinations thereof.
- the amine oxide may be present in the detergent granule ranging from about 2 wt%to about 50 wt%, preferably from about 4%to about 40%, more preferably from about 5%to about 35%by total weight of the detergent granule.
- the detergent granule of the present invention may comprise (a) from about 30%to about 95%of an alkyl sulfate (AS) having a branched or linear unalkoxylated alkyl group comprising from 6 to 16 carbon atoms; and (b) from about 2%to about 50%of an amine oxide.
- AS alkyl sulfate
- the weight ratio of said AS over said amine oxide is from about 20: 1 to about 1: 1.
- the weight ratio of said AS over amine oxide is from about 15: 1 to about 1.5: 1, alternatively from about 12: 1 to about 1.8: 1.
- the weight ratio of AS over amine oxide in the detergent granule of the present invention is from about 10: 1 to about 2: 1, more preferably from about 9: 1 to about 2.5: 1, most preferably from about 8: 1 to about 3: 1.
- the detergent granule comprises a C 10 -C 14 linear or branched unalkoxylated alkyl sulfate (AS) and a C 10 -C 16 Alkyl dimethylamines, N-oxides.
- the detergent granule comprises a C 12 -C 16 linear or branched unalkoxylated alkyl sulfate (AS) and a C 10 -C 16 Alkyl dimethylamines, N-oxides.
- the detergent granule of the present invention may further comprise 0%to 30%of water-soluble salt.
- the water-soluble salt used in the detergent granule of the present invention can be selected from the group consisting of sodium sulfate, sodium carbonate, magnesium chloride, magnesium sulfate, sodium silicate, and combinations thereof.
- the water-soluble salt is selected from sodium sulfate, sodium carbonate, or a combination thereof.
- the amount of water-soluble salt present in the detergent granule of the present invention may range from about 0.5 wt%to about 20 wt%, preferably from about 1 wt%to about 15 wt%, and more preferably from about 2 wt%to about 10 wt%.
- the addition of water-soluble salt may help to improve flowability of the particle, thus make it easy to handle during storage, shipping and manufacturing.
- the detergent granule contains too high amount of the water-soluble salt, the amount of MCAS and amine oxide surfactant in such detergent granule likely must be reduced, which is undesirable.
- the detergent granule of the present invention may contain from about 1 wt%to about 5 wt%of water, preferably from about 1.5 wt%to about 4 wt%, more preferably from about 2 wt%to about 3 wt%. Too much water in the detergent granule may adversely affect its flowability and handability.
- the detergent granule of the present invention may contain one or more other ingredients, such as silica, zeolite, other surfactants, enzymes, bleach actives, chelants, perfumes, dyes, fluorescent materials, and the like.
- the detergent granule of the present invention consists essentially of the above-mentioned MCAS, amine oxide, water-soluble salt, and water. More preferably, the detergent granule of the present invention is essentially free of other ingredients.
- the detergent granule of the present invention may be characterized by a Medium Particle Size ranging from about 20 ⁇ m to about 2000 ⁇ m, preferably from about 200 ⁇ m to about 100 ⁇ m, more preferably from about 250 ⁇ m to about 600 ⁇ m.
- the detergent granule of the present invention preferably has a spherical or substantially spherical shape, which functions to further improve its flowability and handability during storage and shipment.
- the detergent granule of the present invention may be used alone for cleaning, but preferably it is combined with other particles to form a cleaning composition, such as a granular laundry detergent product.
- the detergent granule is typically added to the cleaning composition at a level of from about 0.1 wt%to about 50 wt%, preferably from about 0.2 wt%to about 40 wt%, or from about 0.3wt%to about 30wt%, alternatively from about 0.5 wt%to about 20 wt%, or from about 0.5 wt%to about 15 wt%; more preferably from about 0.5 wt%to about 10 wt%, or from about 0.8wt%to about 8wt%by weight of the cleaning composition.
- the cleaning composition is a granular detergent composition.
- the detergent granule of the present invention may be combined with other particles such as, for example: surfactant particles, such as anionic detersive surfactant particles (especially those containing LAS) including agglomerates and extrudates, non-ionic detersive surfactant particles including agglomerates or extrudates, and cationic detersive surfactant particles including agglomerates and extrudates; enzyme particles; perfume particles including agglomerates or extrudates of perfume microcapsules, and perfume encapsulates such as starch encapsulated perfume accord particles; polymer particles including soil release polymer particles, cellulosic polymer particles; buffer particles including carbonate salt and/or silicate salt particles, preferably a particle comprising carbonate salt and silicate salt such as a sodium carbonate and sodium silicate co-particle, and particles and sodium bicarbonate; other spray-dried particles; fluorescent whitening particles; aesthetic particles such as coloured noodles or needles or lamellae particles; bleaching particles such as percarbonate particles
- the cleaning composition of the present invention may further comprise one or more surfactant selected from the group consisting of: (1) a C10-C20 linear alkylbenzene sulphonate (LAS) ; (2) a C10-C20 linear or branched alkylalkoxylated sulfate (AAS) , (3) nonionic surfactant, and (4) combinations thereof.
- LAS linear alkylbenzene sulphonate
- AAS alkylalkoxylated sulfate
- nonionic surfactant e.g., a nonionic surfactant, and (4) combinations thereof.
- the cleaning composition of the present invention comprises, in addition to the detergent granule described hereinabove, C 10 -C 20 linear alkylbenzene sulphonate (LAS) , and more preferably such cleaning composition further comprises a fatty acid or salt thereof.
- the MCAS-containing detergent granule of the present invention may interact with such LAS and fatty acid/salt to
- the cleaning composition may also be especially preferred for the cleaning composition to comprise low levels, or even be substantially free, of builder.
- the cleaning composition comprises no builder.
- the cleaning composition is typically used for cleaning and /or treating a situs inter alia a surface or fabric.
- surface may include such surfaces such as dishes, glasses, and other cooking surfaces, hard surfaces, hair or skin.
- Such method includes the steps of contacting an embodiment of the cleaning composition, in neat form or diluted in a wash liquor, with at least a portion of a surface or fabric, then optionally rinsing such surface or fabric.
- the surface or fabric may be subjected to a washing step prior to the aforementioned rinsing step.
- washing includes but is not limited to, scrubbing, wiping, and mechanical agitation.
- composition solution pH is chosen to be the most complimentary to a target surface to be cleaned spanning broad range of pH, from about 5 to about 11.
- For personal care such as skin and hair cleaning pH of such composition preferably has a pH from about 5 to about 8, and for laundry cleaning compositions pH of from about 8 to about 10.
- the compositions are preferably employed at concentrations of from about 200 ppm to about 10,000 ppm in solution.
- the water temperatures preferably range from about 5 °C to about 100 °C.
- a method of laundering fabrics using the cleaning composition of the present invention may comprise the steps of contacting a fabric to be laundered with the cleaning composition or a wash liquor formed thereby.
- the fabric may comprise most any fabric capable of being laundered in normal consumer use conditions.
- the cleaning composition herein is especially well-suited for use in a hand-washing context. It can also be used in automatic mashing washing using a top-loading or front-loading automatic washing machine.
- the cleaning composition may be employed at concentrations of from about 500 ppm to about 15,000 ppm in solution, and optionally, more dilute wash conditions can be used.
- 50 g or less, or 45 g or less, or 40 g or less, or 35 g or less, or 30 g or less, or 25 g or less, or 20 g or less, or even 15 g or less, or even 10 g or less of the cleaning composition is dissolved into water to form a wash liquor.
- the wash liquor preferably has a pH of from about 8 to about 10.5.
- the wash liquor may comprise 40 litres or less of water, or 30 litres or less, or 20 litres or less, or 10 litres or less, or 8 litres or less, or even 6 litres or less of water.
- the wash liquor may comprise from above 0 to 15 litres, or from 2 litres, and to 12 litres, or even to 8 litres of water.
- the wash liquor may comprise 150 litres or less of water, 100 litres or less of water, 60 litres or less of water, or 50 litres or less of water, especially for hand washing conditions, and can depend on the number of rinses.
- the water to fabric ratio is typically from about 1: 1 to about 30: 1. Typically, from 0.01 Kg to 2 Kg of fabric per litre of wash liquor is dosed into the wash liquor.
- the cleaning composition can be used in hard water conditions where the water hardness is between about 17 ppm to about 600 ppm; or from about 34 ppm to about 340 ppm; or from about 51 ppm to about 300 ppm of hard water ions such as Ca 2+ , Mg + , etc., or such as Ca 2+ and Mg 2+ .
- the cleaning composition can be used in cold water temperature, where the temperature is from about 5 °C to about 40 °C, or from about 20 °Cto about 30 °C, or from about 15 °C to about 25 °C, as well as all other combinations within the range of about 15 °C to about 35 °C, and all ranges within 10 °C to 40 °C.
- step 4 Stop the agitator after exactly 1 min mixing and record the total volume of the solution and suds in the mixer. If the recorded time in step 3 is less than 1 minute (i.e., suds go to the top) , then the volume recorded here is the total volume of the mixer.
- the flowability (ff c ) of each sample detergent granule is the ratio of ⁇ 1 (consolidation stress) to ⁇ c (unconfined yield strength) , which is used to characterize flowability numerically: the larger ffc means the better a bulk solid flows.
- the flowability (ff c ) data is generated from a Schulze Ring Shear Tester RST-XS, while the detailed test procedure of the ring shear tester is described in detail in ASTM standard D-6773.
- the consolidation stress at pre-shear is set as 16000Pa, and five different other consolidation stresses (3200Pa, 4800Pa, 6400Pa, 8000Pa and 9600Pa) are also applied during the same test.
- the minimum shear stress required to shear the bulk sample (shear to failure) at each consolidation stress is then measured to generate a yield locus (see Fig 4.10 in D. Schulze, Powder and Bulk Solid: Behavior, Characterization, Storage and Flow, Springer, 2008) .
- the yield locus is then used to calculate the consolidation stress, ⁇ 1 and the unconfined yield strength, ⁇ c; and the ratio of ⁇ 1 to ⁇ c is the flowability, ff c .
- Inventive examples of detergent granule are made, containing different mass ratio of MCAS and amine oxide (AO) as shown in below Table 1. Comparative examples containing MCAS only and amine oxide only are also made.
- the sample particles can be made by a drying process, referring to the conventional process for manufacturing of MCAS, and a grinding process. The process can be batch or continuous.
- MCAS paste is preheated to 60 ⁇ 75°C, and sodium sulfate is added with agitation at 60 ⁇ 75°C, consequently amine oxide is added at the same condition.
- the resulted composition paste is then dried on a plate in oven at 80 ⁇ 110°C until the moisture reaches to ⁇ 3%. After drying, the particles are ground (e.g. by a food mixer) into particles having suitable sizes as described below.
- Other suitable method can also be used for making the detergent granules of the present invention.
- MCAS is SLS 90/92 from Shanghai Auway Daily Chemicals (containing majority of C 12 -C 14 alkyl sulfate with low level of C 16 alkyl sulfate) .
- **AO is C 10 -C 16 Alkyl dimethylamines, N-oxide (Solvay ZhangJiaGang Specialty)
- Comparative Example Y is raw material of AO in 32%aqueous solution.
- the particle size distribution is one of the key factors influencing particle flowability. Therefore, it is important to ensure that all sample detergent particles have the same or substantially similar particle size distributions, in order to minimize any potential impact of the particle size distribution variations on the flowability test results.
- the same or substantially similar particle size distribution for all sample detergent granules can be obtained by sieving the sample with a nest of clean dry sieves using a sieve-shaking machine. For example, all Inventive Example particles tested herein are all mixed with the following %in each size cut.
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Abstract
A detergent granule comprising from 30% to 95%, by weight of the detergent granule, of an alkyl sulfate having a branched or linear unalkoxylated alkyl group comprising from 6 to 16 carbon atoms; and from 2% to 50%, by weight of the detergent granule, of an amine oxide.
Description
The present invention relates to a detergent granule that can be used to make cleaning products, especially granular detergent products.
Mid-cut alkyl sulfate (MCAS or AS) with a C
6-C
16 branched or unbranched unalkoxylated alkyl group has been discovered to be effective for suds-boosting when it is used as a co-surfactant in cleaning compositions, particularly in dry laundry detergent compositions. For example, WO2009010911 discloses the use of MCAS for boosting suds in a LAS-based surfactant system and forming a detergent composition with a reduced total surfactant level, but without apparently deteriorating the sudsing profile of the detergent composition. However, more enhanced suds-boosting effect is desirable for consumers who hand-wash fabrics. Particularly, these consumers consider copious suds in the wash as the primary and most desirable signal of cleaning. Thus, there is still a need for detergent compositions capable of generating more suds during the wash.
Amine oxides (e.g., alkyl dimethyl amine oxide) are very widely used as co-surfactants in consumer products such as shampoos, conditioners, and detergent products, as providing suds-boosting benefit. However, amine oxides are mainly used in the liquid form of detergent products, but not commonly used in dry detergent products. Although some efforts have been made to introduce amine oxides into dry detergent products, they failed due to certain technical challenges. Particularly, spray-drying process and agglomeration process are the two main processes for making dry detergent products. Amine oxides have poor thermo-stability thus resulting in processing difficulties during spray-drying. While during agglomeration process, amino oxides, which exist in liquid/solution form, may have negative interactions with other ingredients (e.g., LAS) in dry detergent products and result in granules with poor flowability and difficult to handle.
Thus, there is a need to address the above-mentioned problems of introducing suds-boosting surfactants such as amine oxides into dry detergent composition to provide advantageous or more desirable sudsing profile, but at the same time without deteriorating the flowability of the detergent composition.
SUMMARY OF THE INVENTION
The present invention has discovered, surprisingly and unexpectedly, that by making a detergent granule comprising MCAS and an amine oxide, the amine oxide can be successfully added into a dry detergent product and the suds-boosting effect is significantly enhanced. Further, when such detergent granule contains MCAS and the amine oxide in a preferred weight ratio (e.g., from about 20: 1 to about 1: 1) , a more desirable suds-boosting effect can be achieved.
It is desirable that the detergent granule comprising MCAS and amine oxide can provide comparative or even superior flowability compare with a detergent granule without adding amine oxide.
In another aspect, the present invention relates to a cleaning composition comprising from about 0.1%to about 50%, preferably from 0.2%to 30%, more preferably from 0.3%to 20%, by weight of such cleaning composition, of the above-mentioned detergent granule.
In yet another aspect, the present invention relates to the use of the above-mentioned cleaning composition for washing fabrics.
These and other aspects of the present invention will become more apparent upon reading the following detailed description of the invention.
Features and benefits of the various embodiments of the present invention will become apparent from the following description, which includes examples of specific embodiments intended to give a broad representation of the invention. Various modifications will be apparent to those skilled in the art from this description and from practice of the invention. The scope of the present invention is not intended to be limited to the particular forms disclosed and the invention covers all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the claims.
As used herein, articles such as “a” and “an” when used in a claim, are understood to mean one or more of what is claimed or described. The terms “comprise, ” “comprises, ” “comprising, ” “contain, ” “contains, ” “containing, ” “include, ” “includes” and “including” are all meant to be non-limiting.
As used herein, the term “granule” or “particle” refers to a solid matter of minute quantity, such as a powder, granule, encapsulate, microcapsule, and/or prill. The granules or particles of the present invention can be spheres, rods, plates, tubes, squares, rectangles, discs, stars or flakes of regular or irregular shapes, but they are non-fibrous. The granules or particles of the present invention may have a median particle size of about 2000 μm or less, as measured according to the Median Particle Size Test described herein. Preferably, the particles of the present invention have a median particle size ranging from about 1 μm to about 2000 μm, more preferably from about 10 μm to about 1800 μm, still more preferably from about 50 μm to about 1700 μm, still more preferably from about 100 μm to about 1500 μm, still more preferably from about 250 μm to about 1000 μm, most preferably from about 300 μm to about 800 μm, as measured according to the Median Particle Size Test described herein.
As used herein, the term “detergent granule” refers to particles containing one or more detersive actives, including but not limited to surfactants, bleaching agents, enzymes, polymers, chelants, and combinations thereof.
As used herein, the term “cleaning composition” includes, unless otherwise indicated, granular or powder-form all-purpose or “heavy-duty” washing agents, especially cleaning detergents, for fabrics, as well as cleaning auxiliaries such as bleach, rinse aids, additives, or pre-treat types; hand dishwashing agents or light duty dishwashing agents, especially those of the high-foaming type; machine dishwashing agents; mouthwashes, denture cleaners, car or carpet shampoos, bathroom cleaners; hair shampoos and hair-rinses; shower gels and foam baths and metal cleaners; as well as cleaning auxiliaries such as bleach additives or pre-treat types. In one preferred aspect, the cleaning composition is a solid laundry detergent composition, and more preferably a free-flowing particulate laundry detergent composition (i.e., a granular laundry detergent product) .
As used herein, the term “Median Particle Size” refers to the mid-point of the distribution of the particle sizes of the detergent granule, as measured by the Sieve Test as disclosed herein.
As used herein, the term “aspect ratio” refers to the ratio of the largest diameter of an article over the smallest diameter of such article orthogonal to the largest diameter.
As used herein, the term “water-soluble” refers to a solubility of more than about 25 grams per liter (g/L) of deionized water measured at 20℃ and under the atmospheric pressure.
As used herein, the terms “consisting essentially of” means that the composition contains less than about 1%, preferably less than about 0.5%, of ingredients other than those listed.
Further, the terms “essentially free of, ” “substantially free of” or “substantially free from” means that the indicated material is present in the amount of from 0 wt%to about 0.5 wt%, or preferably from 0 wt%to about 0.1 wt%, or more preferably from 0 wt%to about 0.01 wt%, and most preferably it is not present at analytically detectable levels. The term “substantially pure” or “essentially pure” means that the indicated material is present in the amount of from about 99.5 wt%to about 100 wt%, preferably from about 99.9 wt%to about 100 wt%, and more preferably from 99.99 wt%to about 100 wt%, and most preferably all other materials are present only as impurities below analytically detectable levels.
MCAS
The AS surfactant used in the detergent granule of the present invention contains a branched or linear unalkoxylated alkyl group containing from about 6 to about 18 carbon atoms, and is therefore also referred to as Mid-Cut AS or MCAS.
Preferably, the AS has the generic formula of R-O-SO
3
-M
+, while R is branched or linear unalkoxylated C
6-C
16 alkyl group, and M is a cation of alkali metal, alkaline earth metal or ammonium. More preferably, the R group of the AS surfactant contains from about 8 to about 16 carbon atoms, more preferably from about 10 to about 14 carbon atoms, most preferably from about 12 to about 14 carbon atoms. R can be substituted or unsubstituted, and is preferably unsubstituted. R is substantially free of any alkoxylation. M is preferably a cationic of sodium, potassium, or magnesium, and more preferably M is a sodium cation.
Preferably, but not necessarily, the detergent granule of the present invention contains a mixture of C
6-C
16 AS surfactants, in which C
8-C
14 AS surfactants are present in an amount ranging from about 85%to about 100%by total weight of the mixture. This mixture can be referred to as a “C
8-C
14-rich AS mixture. ” More preferably, such C
8-C
14-rich AS mixture contains from about 90 wt%to about 100 wt%, or from 92 wt%to about 98 wt%, or from about 94 wt%to about 96 wt%, or 100 wt% (i.e., pure) , of C
8-C
14 AS.
In a particularly preferred embodiment of the present invention, the detergent granule contains a mixture of C
6-C
16 AS surfactants with from about 30 wt%to about 100 wt%or from about 50 wt%to about 99 wt%, preferably from about 60 wt%to about 95 wt%, more preferably from about 65 wt%to about 90 wt%, and most preferably from about 70 wt%to about 80 wt%of C
12 AS. Further, such mixture of C
6-C
16 AS surfactants may contain from about 10 wt%to about 100 wt%, preferably from 15 wt%to about 50 wt%, and more preferably from 20 wt%to about 30 wt%of C
14 AS. This mixture can be referred to as a “C
12-C
14-rich AS mixture. ”
In a most preferred embodiment of the present invention, the detergent granule contains a mixture of AS surfactants that consists essentially of C
12 and/or C
14 AS surfactants. For example, such mixture of AS surfactant may consist essentially of from about 70 wt%to about 80 wt%of C
12 AS and from 20 wt%to about 30 wt%of C
14 AS, with little or no other AS surfactants therein. Such mixture may also consist of substantially pure C
12 AS, or alternatively, substantially pure C
14 AS.
A commercially available AS mixture particularly suitable for practice of the present invention is
V95 G from Cognis (Monheim, Germany) .
Further, the detergent granule of the present invention may contain a mixture of C
6-C
16 AS surfactants comprising more than about 50 wt%, preferably more than about 60 wt%, more preferably more than 70 wt%or 80 wt%, and most preferably more than 90 wt%or even at 100 wt% (i.e., substantially pure) , of linear AS surfactants having an even number of carbon atoms, including, for example, C
6, C
8, C
10, C
12, C
14, and C
16 AS surfactants.
The mixture of C
6-C
16 AS surfactants as described can be readily obtained by sulphonation of alcohol (s) with the corresponding numbers of carbon atoms. The required carbon chain length distribution can be obtained by using alcohols with the corresponding chain length distribution prepared either synthetically or extracted/purified from natural raw materials or formed by mixing corresponding pure starting materials. For example, the mixture of C
6-C
16 AS surfactants may be derived from naturally occurring triglycerides, such as those contained in palm kernel oil or coconut oil, by chemically processing such triglycerides to form a mixture of long chain alcohols and then sulphonating such alcohols to form AS surfactants. The mixture of alcohols derived from the naturally occurring triglycerides typically contain more than about 20 wt%of C
16-C
16 alcohols. A mixture containing a lower proportion of C
16-C
16 alcohols may be separated from the original mixture before the sulphonation step, in order to form the desired mixture of C
6-C
16 AS surfactants as described hereinabove. Alternatively, the desired mixture of C
6-C
16 AS surfactants can be readily obtained by separating and purifying the already formed AS mixtures. Suitable separation and purification methods include, but are not limited to: distillation, centrifugation, recrystallization and chromatographic separation.
The amount of AS surfactant (s) present in the detergent granule of the present invention may range from about 50 wt%to about 95 wt%, and preferably from about 75 wt%to about 90 wt%by total weight of the detergent granule. With such a high level of AS surfactant (s) , the detergent granule of the present invention exhibits a high detersive activity and a very good dissolution profile. In a most preferred embodiment of the present invention, the detergent granule contains from about 75 wt%to about 90 wt%, preferably from about 80 wt%to about 86 wt%, of an AS mixture consisting essentially of from about 70 wt%to about 80 wt%of C
12 AS and from 20 wt%to about 30 wt%of C
14 AS.
Amine Oxide
Amine oxides are amphoteric/zwitterionic surfactants that can be used in detergent products. Typically, amine oxides are synthesized from long-chain fatty molecules which are derived from, for example, lauric-containing triglyceride oils such as coconut oil or palm kernel oil. The amine oxide used in the detergent granule of the present invention may comprise alkyl amine oxide. The amine oxide used in the detergent granule of the present invention may have the formula (I) :
wherein R
1 is a C
8-22 alkyl, a C
8-22 hydroxyalkyl, a C
8-22 alkyl phenyl, or a R
4-X-R
5-group; wherein R
4 is a C
8-22 alkyl group, R
5 is a C
1-3 alkylene group, and X is a bivalent moiety selected from the group consisting of aminocarbonyl, carbonylamino, carbonyloxy, oxycarbonyloxy, aminocarbonylamino and combination and derivatives thereof; OY is an alkoxy moiety selected from the group consisting of ethoxy, propoxy, butoxy and combination thereof; m is from 0 to 3; R
2 and R
3 are independently selected from the group consisting of a C
1-3 alkyl group, a C
1-3 hydroxyalkyl group and combination thereof.
Preferably, R
1 in formula (I) is a C
10-18 alkyl or a R
4-X-R
5-group, wherein R
4 is a C
10-18 alkyl, R
5 is an ethylene or propylene group, and X is a carbonylamino group; OY is an ethoxy or propoxy group; m is from 0 to 3; R
2 and R
3 are independently selected from the group consisting of methyl, ethyl, propyl, isopropyl, 2-hydroethyl, 1-hydroxypropyl, 3-hydroxypropyl group and combination thereof.
Preferably, the amine oxide used in the detergent granule of the present invention may be selected from the group consisting of a C
10-18 alkyl dimethyl amine oxide, a C
8-16 alkyl ethoxy dihydroxy ethyl amine oxide, a C
10-18 alkyl amidopropyl dimethyl amine oxide, and combinations thereof. More preferably, the amine oxide surfactant of the present invention is a C
12-16 alkyl dimethyl amine oxide, a C
12-16 alkylamidopropyl dimethyl amine oxide, or a combination thereof. More preferably, the amine oxide may be coco alkyl dimethyl amine oxide, alkylamidopropylamine N-oxide, lauramine oxide or an any combinations thereof.
The amine oxide may be present in the detergent granule ranging from about 2 wt%to about 50 wt%, preferably from about 4%to about 40%, more preferably from about 5%to about 35%by total weight of the detergent granule.
Detergent Granule
The detergent granule of the present invention may comprise (a) from about 30%to about 95%of an alkyl sulfate (AS) having a branched or linear unalkoxylated alkyl group comprising from 6 to 16 carbon atoms; and (b) from about 2%to about 50%of an amine oxide. Preferably, the weight ratio of said AS over said amine oxide is from about 20: 1 to about 1: 1. For example, the weight ratio of said AS over amine oxide is from about 15: 1 to about 1.5: 1, alternatively from about 12: 1 to about 1.8: 1. Preferably, the weight ratio of AS over amine oxide in the detergent granule of the present invention is from about 10: 1 to about 2: 1, more preferably from about 9: 1 to about 2.5: 1, most preferably from about 8: 1 to about 3: 1. In a preferred embodiment, the detergent granule comprises a C
10-C
14 linear or branched unalkoxylated alkyl sulfate (AS) and a C
10-C
16 Alkyl dimethylamines, N-oxides. In another preferred embodiment, the detergent granule comprises a C
12-C
16 linear or branched unalkoxylated alkyl sulfate (AS) and a C
10-C
16 Alkyl dimethylamines, N-oxides.
Water-Soluble Salt
The detergent granule of the present invention may further comprise 0%to 30%of water-soluble salt. The water-soluble salt used in the detergent granule of the present invention can be selected from the group consisting of sodium sulfate, sodium carbonate, magnesium chloride, magnesium sulfate, sodium silicate, and combinations thereof. Preferably, the water-soluble salt is selected from sodium sulfate, sodium carbonate, or a combination thereof.
The amount of water-soluble salt present in the detergent granule of the present invention may range from about 0.5 wt%to about 20 wt%, preferably from about 1 wt%to about 15 wt%, and more preferably from about 2 wt%to about 10 wt%. The addition of water-soluble salt may help to improve flowability of the particle, thus make it easy to handle during storage, shipping and manufacturing. On the other hand, if the detergent granule contains too high amount of the water-soluble salt, the amount of MCAS and amine oxide surfactant in such detergent granule likely must be reduced, which is undesirable.
Water Content
The detergent granule of the present invention may contain from about 1 wt%to about 5 wt%of water, preferably from about 1.5 wt%to about 4 wt%, more preferably from about 2 wt%to about 3 wt%. Too much water in the detergent granule may adversely affect its flowability and handability.
Other Ingredients
The detergent granule of the present invention may contain one or more other ingredients, such as silica, zeolite, other surfactants, enzymes, bleach actives, chelants, perfumes, dyes, fluorescent materials, and the like.
Preferably, the detergent granule of the present invention consists essentially of the above-mentioned MCAS, amine oxide, water-soluble salt, and water. More preferably, the detergent granule of the present invention is essentially free of other ingredients.
Size and Shape of Detergent Granule
The detergent granule of the present invention may be characterized by a Medium Particle Size ranging from about 20 μm to about 2000 μm, preferably from about 200 μm to about 100 μm, more preferably from about 250 μm to about 600 μm.
Further, it may be characterized by an aspect ratio of no more than 2, preferably no more than 1.5, more preferably not more than 1.2, most preferably no more than 1.1. The detergent granule of the present invention preferably has a spherical or substantially spherical shape, which functions to further improve its flowability and handability during storage and shipment.
Cleaning Composition
The detergent granule of the present invention may be used alone for cleaning, but preferably it is combined with other particles to form a cleaning composition, such as a granular laundry detergent product.
In one aspect, the detergent granule is typically added to the cleaning composition at a level of from about 0.1 wt%to about 50 wt%, preferably from about 0.2 wt%to about 40 wt%, or from about 0.3wt%to about 30wt%, alternatively from about 0.5 wt%to about 20 wt%, or from about 0.5 wt%to about 15 wt%; more preferably from about 0.5 wt%to about 10 wt%, or from about 0.8wt%to about 8wt%by weight of the cleaning composition. Preferably, the cleaning composition is a granular detergent composition.
The detergent granule of the present invention may be combined with other particles such as, for example: surfactant particles, such as anionic detersive surfactant particles (especially those containing LAS) including agglomerates and extrudates, non-ionic detersive surfactant particles including agglomerates or extrudates, and cationic detersive surfactant particles including agglomerates and extrudates; enzyme particles; perfume particles including agglomerates or extrudates of perfume microcapsules, and perfume encapsulates such as starch encapsulated perfume accord particles; polymer particles including soil release polymer particles, cellulosic polymer particles; buffer particles including carbonate salt and/or silicate salt particles, preferably a particle comprising carbonate salt and silicate salt such as a sodium carbonate and sodium silicate co-particle, and particles and sodium bicarbonate; other spray-dried particles; fluorescent whitening particles; aesthetic particles such as coloured noodles or needles or lamellae particles; bleaching particles such as percarbonate particles, especially coated percarbonate particles, including carbonate and/or sulfate coated percarbonate, silicate coated percarbonate, borosilicate coated percarbonate, sodium perborate coated percarbonate; bleach catalyst particles, such as transition metal catalyst bleach particles, and imine bleach boosting particles; performed peracid particles; hueing dye particles; and any mixture thereof.
In addition to the detergent granule described hereinabove, the cleaning composition of the present invention may further comprise one or more surfactant selected from the group consisting of: (1) a C10-C20 linear alkylbenzene sulphonate (LAS) ; (2) a C10-C20 linear or branched alkylalkoxylated sulfate (AAS) , (3) nonionic surfactant, and (4) combinations thereof. It is preferred that the cleaning composition of the present invention comprises, in addition to the detergent granule described hereinabove, C
10-C
20 linear alkylbenzene sulphonate (LAS) , and more preferably such cleaning composition further comprises a fatty acid or salt thereof. The MCAS-containing detergent granule of the present invention may interact with such LAS and fatty acid/salt to provide an improved sudsing profile.
It may also be especially preferred for the cleaning composition to comprise low levels, or even be substantially free, of builder. In a preferred embodiment, the cleaning composition comprises no builder.
Method of Use
The cleaning composition is typically used for cleaning and /or treating a situs inter alia a surface or fabric. As used herein, “surface” may include such surfaces such as dishes, glasses, and other cooking surfaces, hard surfaces, hair or skin. Such method includes the steps of contacting an embodiment of the cleaning composition, in neat form or diluted in a wash liquor, with at least a portion of a surface or fabric, then optionally rinsing such surface or fabric. The surface or fabric may be subjected to a washing step prior to the aforementioned rinsing step. For purposes of the present invention, “washing” includes but is not limited to, scrubbing, wiping, and mechanical agitation.
The composition solution pH is chosen to be the most complimentary to a target surface to be cleaned spanning broad range of pH, from about 5 to about 11. For personal care such as skin and hair cleaning pH of such composition preferably has a pH from about 5 to about 8, and for laundry cleaning compositions pH of from about 8 to about 10. The compositions are preferably employed at concentrations of from about 200 ppm to about 10,000 ppm in solution. The water temperatures preferably range from about 5 ℃ to about 100 ℃.
In one aspect, a method of laundering fabrics using the cleaning composition of the present invention is disclosed. The method may comprise the steps of contacting a fabric to be laundered with the cleaning composition or a wash liquor formed thereby. The fabric may comprise most any fabric capable of being laundered in normal consumer use conditions.
The cleaning composition herein is especially well-suited for use in a hand-washing context. It can also be used in automatic mashing washing using a top-loading or front-loading automatic washing machine.
The cleaning composition may be employed at concentrations of from about 500 ppm to about 15,000 ppm in solution, and optionally, more dilute wash conditions can be used. Optionally, 50 g or less, or 45 g or less, or 40 g or less, or 35 g or less, or 30 g or less, or 25 g or less, or 20 g or less, or even 15 g or less, or even 10 g or less of the cleaning composition is dissolved into water to form a wash liquor. The wash liquor preferably has a pH of from about 8 to about 10.5. The wash liquor may comprise 40 litres or less of water, or 30 litres or less, or 20 litres or less, or 10 litres or less, or 8 litres or less, or even 6 litres or less of water. The wash liquor may comprise from above 0 to 15 litres, or from 2 litres, and to 12 litres, or even to 8 litres of water. For dilute wash conditions, the wash liquor may comprise 150 litres or less of water, 100 litres or less of water, 60 litres or less of water, or 50 litres or less of water, especially for hand washing conditions, and can depend on the number of rinses. The water to fabric ratio is typically from about 1: 1 to about 30: 1. Typically, from 0.01 Kg to 2 Kg of fabric per litre of wash liquor is dosed into the wash liquor.
It is preferable that the cleaning composition can be used in hard water conditions where the water hardness is between about 17 ppm to about 600 ppm; or from about 34 ppm to about 340 ppm; or from about 51 ppm to about 300 ppm of hard water ions such as Ca
2+, Mg
+, etc., or such as Ca
2+ and Mg
2+. It is also preferable that the cleaning composition can be used in cold water temperature, where the temperature is from about 5 ℃ to about 40 ℃, or from about 20 ℃to about 30 ℃, or from about 15 ℃ to about 25 ℃, as well as all other combinations within the range of about 15 ℃ to about 35 ℃, and all ranges within 10 ℃ to 40 ℃.
TEST METHODS
The following techniques must be used to determine the properties of the detergent granules and detergent compositions of the invention in order that the invention described and claimed herein may be fully understood.
TEST 1: Suds Test
1. Add 300ml of Beijing city water in a mixer, the mixer is about 700ml and with an overhead agitator attached to the lid.
2. Weigh out samples which can deliver same amount of active surfactant in each test.
3. Start the agitation after adding the samples into the city water, record the time (unit: second) required for suds to reach the top. Typically, it will take less than a minute for the suds generating and arising to reach the top. The faster the suds reach the top, the better the sudsing profile is.
4. Stop the agitator after exactly 1 min mixing and record the total volume of the solution and suds in the mixer. If the recorded time in step 3 is less than 1 minute (i.e., suds go to the top) , then the volume recorded here is the total volume of the mixer.
5. Leave the solution to stand for 2 mins on the bench without agitation and then record the volume of suds and water, respectively. The higher the volume of suds, the better the sudsing profile.
TEST 2: Flowability Method
The flowability (ff
c) of each sample detergent granule is the ratio of σ1 (consolidation stress) to σc (unconfined yield strength) , which is used to characterize flowability numerically: the larger ffc means the better a bulk solid flows. The flowability (ff
c) data is generated from a Schulze Ring Shear Tester RST-XS, while the detailed test procedure of the ring shear tester is described in detail in ASTM standard D-6773.
The specific operating condition of the Schulze Ring Shear Tester RST-XS are described hereinafter. To run a flow-ability test, firstly fill sufficient pre-conditioned detergent granules into the shear cell and form a flat powder bed by scraping off the excess material with a spatula. The mass of the filled bottom ring is then weighed and recorded. Set the filled bottom ring on the ring shear tester and place the lid concentrically to the bottom ring on the bulk solid specimen. For preshear the bottom ring is rotated clockwise (seen from the top) , whereby the lid is prevented from rotation by the tie rods. The consolidation stress at pre-shear is set as 16000Pa, and five different other consolidation stresses (3200Pa, 4800Pa, 6400Pa, 8000Pa and 9600Pa) are also applied during the same test. The minimum shear stress required to shear the bulk sample (shear to failure) at each consolidation stress is then measured to generate a yield locus (see Fig 4.10 in D. Schulze, Powder and Bulk Solid: Behavior, Characterization, Storage and Flow, Springer, 2008) . The yield locus is then used to calculate the consolidation stress, σ1 and the unconfined yield strength, σc; and the ratio of σ1 to σc is the flowability, ff
c.
EXAMPLES
1: Comparative and Inventive Examples
Inventive examples of detergent granule are made, containing different mass ratio of MCAS and amine oxide (AO) as shown in below Table 1. Comparative examples containing MCAS only and amine oxide only are also made. The sample particles can be made by a drying process, referring to the conventional process for manufacturing of MCAS, and a grinding process. The process can be batch or continuous. For example, for preparing the Inventive Examples A to E, MCAS paste is preheated to 60~75℃, and sodium sulfate is added with agitation at 60~75℃, consequently amine oxide is added at the same condition. The resulted composition paste is then dried on a plate in oven at 80 ~ 110℃ until the moisture reaches to <3%. After drying, the particles are ground (e.g. by a food mixer) into particles having suitable sizes as described below. Other suitable method can also be used for making the detergent granules of the present invention.
Table 1: Comparative and Inventive Examples
*MCAS is SLS 90/92 from Shanghai Auway Daily Chemicals (containing majority of C
12-C
14 alkyl sulfate with low level of C
16 alkyl sulfate) .
**AO is C
10-C
16 Alkyl dimethylamines, N-oxide (Solvay ZhangJiaGang Specialty)
#Comparative Example Y is raw material of AO in 32%aqueous solution.
The particle size distribution is one of the key factors influencing particle flowability. Therefore, it is important to ensure that all sample detergent particles have the same or substantially similar particle size distributions, in order to minimize any potential impact of the particle size distribution variations on the flowability test results. The same or substantially similar particle size distribution for all sample detergent granules can be obtained by sieving the sample with a nest of clean dry sieves using a sieve-shaking machine. For example, all Inventive Example particles tested herein are all mixed with the following %in each size cut.
Size Cut, μm | 1180 | 850 | 600 | 425 | 250 | 150 | 106 | 63 | <63 |
wt% | 1.54 | 6.13 | 10.17 | 12.69 | 20.38 | 16.17 | 8.54 | 10.73 | 13.65 |
2: Suds Test
Suds test of the Comparative and Inventive Examples are conducted in accordance with the test method described hereinabove Test 1. Table 2 below summarizes the amounts of Examples used, the time for suds to reach the top of the mixer, volume of the suds after 2 minutes standing.
Table 2: Suds test results of Comparative and Inventive Examples
*means in this test the suds do not reach the top of the mixer.
Note in this Suds test, the mass of each example is calculated and normalized so that the active surfactant amount in each test sample is the same. The results show that, with addition of amine oxide into the particle, the sudsing benefit significantly increases. Specifically, with the same amount of total surfactant (MCAS + AO) , all the Inventive Examples exhibit significantly better suds property (e.g. higher suds volume) than Comparative Example X which contains MCAS only without AO. Significantly, in the Inventive Examples B &C, synergistic suds-boosting benefit was observed. That is, the granule composition containing both MCAS and AO show significant suds-boosting benefit.
3: Flowability Test
The Flowability Test of the Comparative Example X and Inventive Examples B, C, and D are conducted in accordance with the test method described hereinabove Test 2. Followings are the flowability test results of the sample detergent granules (Table 3) :
Table 3: Flowability Test
As mentioned in the test method, the higher the value of (ff
c) , the better the flowability. The results show that the Inventive Examples B, C and D with specific ratio of MCAS/AO exhibit good/comparable, or even better flowability, compared with the Comparative Example X where only MCAS presents. That is, combining liquid amine oxide into MCAS would not significantly influence the flowability of the particle, rather, with specific ratio, it even makes the flowability better.
The dimensions and values disclosed herein are not to be understood as being strictly limited to the exact numerical values recited. Instead, unless otherwise specified, each such dimension is intended to mean both the recited value and a functionally equivalent range surrounding that value. For example, a dimension disclosed as “40 mm” is intended to mean “about 40 mm. ”
Every document cited herein, including any cross referenced or related patent or application and any patent application or patent to which this application claims priority or benefit thereof, is hereby incorporated herein by reference in its entirety unless expressly excluded or otherwise limited. The citation of any document is not an admission that it is prior art with respect to any invention disclosed or claimed herein or that it alone, or in any combination with any other reference or references, teaches, suggests or discloses any such invention. Further, to the extent that any meaning or definition of a term in this document conflicts with any meaning or definition of the same term in a document incorporated by reference, the meaning or definition assigned to that term in this document shall govern.
While particular embodiments of the present invention have been illustrated and described, it would be obvious to those skilled in the art that various other changes and modifications can be made without departing from the spirit and scope of the invention. It is therefore intended to cover in the appended claims all such changes and modifications that are within the scope of this invention.
Claims (10)
- A detergent granule comprisinga) from about 30%to about 95%, by weight of the detergent granule, of an alkyl sulfate (AS) having a branched or linear unalkoxylated alkyl group comprising from 6 to 18 carbon atoms; andb) from about 2%to about 50%, by weight of the detergent granule, of an amine oxide.
- The detergent granule according to claim 1, wherein the weight ratio of said AS over said amine oxide is from 20: 1 to 1: 1, preferably from 15: 1 to 1.5: 1, more preferably from 10: 1 to 2: 1, yet more preferably from 9: 1 to 2.5: 1, most preferably from 8: 1 to 3: 1.
- The detergent granule according to claim 1 or 2, wherein the branched or linear unalkoxylated alkyl group of said AS comprises from 8 to 16, preferably from 10 to 14, more preferably from 12 to 14 carbon atoms.
- The detergent granule according to any one of preceding claims, wherein said amine oxide comprises a compound of the following formula:wherein R 1 is a C 8-22 alkyl, a C 8-22 hydroxyalkyl, a C 8-22 alkyl phenyl, or a R 4-X-R 5-group; wherein R 4 is a C 8-22 alkyl group, R 5 is a C 1-3 alkylene group, and X is a bivalent moiety selected from the group consisting of aminocarbonyl, carbonylamino, carbonyloxy, oxycarbonyloxy, aminocarbonylamino and combinations and derivatives thereof; OY is an alkoxy moiety selected from the group consisting of ethoxy, propoxy, butoxy and combinations thereof; m is from 0 to 3; R 2 and R 3 are independently selected from the group consisting of a C 1-3 alkyl group, a C 1-3 hydroxyalkyl group and combinations thereof.
- The detergent granule according to claim 4, wherein R 1 in formula (I) of said amine oxide is a C 10-18 alkyl or a R 4-X-R 5-group, wherein R 4 is a C 10-18 alkyl, R 5 is an ethylene or propylene group, and X is a carbonylamino group; OY is an ethoxy or propoxy group; m is from 0 to 3; R 2 and R 3 are independently selected from the group consisting of methyl, ethyl, propyl, isopropyl, 2-hydroethyl, 1-hydroxypropyl, 3-hydroxypropyl group and combination thereof.
- The detergent granule according to any one of preceding claims, wherein said amine oxide is selected from the group consisting of a C 10-18 alkyl dimethyl amine oxide, a C 8-16 alkyl ethoxy dihydroxy ethyl amine oxide, a C 10-18 alkyl amidopropyl dimethyl amine oxide, and combinations thereof, preferably said amine oxide is a C 10-16 alkyl dimethyl amine oxide, a C 10-16 alkylamidopropyl dimethyl amine oxide, or a combination thereof.
- A cleaning composition comprising from 0.1%to 50%, by weight of said cleaning composition, of the detergent granule according to any one of the preceding claims.
- The cleaning composition according to claim 7, wherein the detergent granule is present in an amount ranging from 0.2%to 30%, preferably from 0.3%to 20%, by weight of said cleaning composition.
- The cleaning composition according to claim 7 or 8, further comprising one or more surfactant selected from the group consisting of: (1) a C 10-C 20 linear alkylbenzene sulphonate (LAS) ; (2) a C 10-C 20 linear or branched alkylalkoxylated sulfate (AAS) , (3) nonionic surfactant, and (4) combinations thereof.
- Use of the cleaning composition according to any one of claims 7-9 for washing fabrics.
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
MX2023002188A MX2023002188A (en) | 2020-09-01 | 2020-09-01 | Detergent granule. |
DE112020007575.3T DE112020007575T5 (en) | 2020-09-01 | 2020-09-01 | detergent granules |
EP20951852.1A EP4208529A1 (en) | 2020-09-01 | 2020-09-01 | Detergent granule |
PCT/CN2020/112760 WO2022047604A1 (en) | 2020-09-01 | 2020-09-01 | Detergent granule |
GB2300779.2A GB2612482A (en) | 2020-09-01 | 2020-09-01 | Detergent granule |
CN202080103352.3A CN116194561A (en) | 2020-09-01 | 2020-09-01 | Detergent granule |
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PCT/CN2020/112760 WO2022047604A1 (en) | 2020-09-01 | 2020-09-01 | Detergent granule |
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WO2022047604A1 true WO2022047604A1 (en) | 2022-03-10 |
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PCT/CN2020/112760 WO2022047604A1 (en) | 2020-09-01 | 2020-09-01 | Detergent granule |
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EP (1) | EP4208529A1 (en) |
CN (1) | CN116194561A (en) |
DE (1) | DE112020007575T5 (en) |
GB (1) | GB2612482A (en) |
MX (1) | MX2023002188A (en) |
WO (1) | WO2022047604A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2024092723A1 (en) * | 2022-11-04 | 2024-05-10 | The Procter & Gamble Company | Method of making detergent granules |
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-
2020
- 2020-09-01 WO PCT/CN2020/112760 patent/WO2022047604A1/en unknown
- 2020-09-01 DE DE112020007575.3T patent/DE112020007575T5/en active Pending
- 2020-09-01 GB GB2300779.2A patent/GB2612482A/en active Pending
- 2020-09-01 EP EP20951852.1A patent/EP4208529A1/en active Pending
- 2020-09-01 CN CN202080103352.3A patent/CN116194561A/en active Pending
- 2020-09-01 MX MX2023002188A patent/MX2023002188A/en unknown
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Also Published As
Publication number | Publication date |
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DE112020007575T5 (en) | 2023-06-15 |
GB2612482A (en) | 2023-05-03 |
EP4208529A1 (en) | 2023-07-12 |
CN116194561A (en) | 2023-05-30 |
GB202300779D0 (en) | 2023-03-08 |
MX2023002188A (en) | 2023-03-03 |
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