EP1553162B2 - Stückförmige Toilettenreinigungsmittel - Google Patents
Stückförmige Toilettenreinigungsmittel Download PDFInfo
- Publication number
- EP1553162B2 EP1553162B2 EP04078440A EP04078440A EP1553162B2 EP 1553162 B2 EP1553162 B2 EP 1553162B2 EP 04078440 A EP04078440 A EP 04078440A EP 04078440 A EP04078440 A EP 04078440A EP 1553162 B2 EP1553162 B2 EP 1553162B2
- Authority
- EP
- European Patent Office
- Prior art keywords
- solid phase
- phase
- gel
- total weight
- perfume
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000007790 solid phase Substances 0.000 claims abstract description 68
- 239000012071 phase Substances 0.000 claims abstract description 38
- 239000002304 perfume Substances 0.000 claims abstract description 30
- 239000007844 bleaching agent Substances 0.000 claims description 16
- 239000008139 complexing agent Substances 0.000 claims description 7
- 239000004094 surface-active agent Substances 0.000 claims description 6
- 229910052783 alkali metal Inorganic materials 0.000 claims description 5
- 150000001340 alkali metals Chemical class 0.000 claims description 5
- 229920006122 polyamide resin Polymers 0.000 claims description 5
- 239000011347 resin Substances 0.000 claims description 5
- 229920005989 resin Polymers 0.000 claims description 5
- 239000004952 Polyamide Substances 0.000 claims description 4
- 239000012190 activator Substances 0.000 claims description 4
- 229920002647 polyamide Polymers 0.000 claims description 4
- 239000000499 gel Substances 0.000 description 37
- 239000004615 ingredient Substances 0.000 description 14
- 239000000203 mixture Substances 0.000 description 12
- 238000001125 extrusion Methods 0.000 description 10
- 238000000034 method Methods 0.000 description 10
- VTYYLEPIZMXCLO-UHFFFAOYSA-L calcium carbonate Substances [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 8
- 239000000945 filler Substances 0.000 description 8
- 239000003795 chemical substances by application Substances 0.000 description 7
- 239000000463 material Substances 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 6
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 6
- 239000003945 anionic surfactant Substances 0.000 description 6
- 239000002253 acid Substances 0.000 description 5
- 150000007513 acids Chemical class 0.000 description 5
- 239000000470 constituent Substances 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 235000002639 sodium chloride Nutrition 0.000 description 5
- 239000002904 solvent Substances 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- 239000004150 EU approved colour Substances 0.000 description 4
- 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 4
- 239000004480 active ingredient Substances 0.000 description 4
- -1 alkyl sulphates Chemical class 0.000 description 4
- 235000010216 calcium carbonate Nutrition 0.000 description 4
- 239000003349 gelling agent Substances 0.000 description 4
- 238000002156 mixing Methods 0.000 description 4
- 229940006093 opthalmologic coloring agent diagnostic Drugs 0.000 description 4
- 150000003839 salts Chemical class 0.000 description 4
- 229910052708 sodium Inorganic materials 0.000 description 4
- 235000011152 sodium sulphate Nutrition 0.000 description 4
- FRPJTGXMTIIFIT-UHFFFAOYSA-N tetraacetylethylenediamine Chemical compound CC(=O)C(N)(C(C)=O)C(N)(C(C)=O)C(C)=O FRPJTGXMTIIFIT-UHFFFAOYSA-N 0.000 description 4
- 229940120146 EDTMP Drugs 0.000 description 3
- 239000006057 Non-nutritive feed additive Substances 0.000 description 3
- 239000000654 additive Substances 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 239000011575 calcium Substances 0.000 description 3
- 229910000019 calcium carbonate Inorganic materials 0.000 description 3
- 239000011162 core material Substances 0.000 description 3
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 3
- NFDRPXJGHKJRLJ-UHFFFAOYSA-N edtmp Chemical compound OP(O)(=O)CN(CP(O)(O)=O)CCN(CP(O)(O)=O)CP(O)(O)=O NFDRPXJGHKJRLJ-UHFFFAOYSA-N 0.000 description 3
- 239000003205 fragrance Substances 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 239000011734 sodium Substances 0.000 description 3
- 229910052938 sodium sulfate Inorganic materials 0.000 description 3
- RPACBEVZENYWOL-XFULWGLBSA-M sodium;(2r)-2-[6-(4-chlorophenoxy)hexyl]oxirane-2-carboxylate Chemical compound [Na+].C=1C=C(Cl)C=CC=1OCCCCCC[C@]1(C(=O)[O-])CO1 RPACBEVZENYWOL-XFULWGLBSA-M 0.000 description 3
- 229910021653 sulphate ion Inorganic materials 0.000 description 3
- 239000004408 titanium dioxide Substances 0.000 description 3
- XSVSPKKXQGNHMD-UHFFFAOYSA-N 5-bromo-3-methyl-1,2-thiazole Chemical compound CC=1C=C(Br)SN=1 XSVSPKKXQGNHMD-UHFFFAOYSA-N 0.000 description 2
- FVVDKUPCWXUVNP-UHFFFAOYSA-M Aminosalicylate sodium anhydrous Chemical compound [Na+].NC1=CC=C(C([O-])=O)C(O)=C1 FVVDKUPCWXUVNP-UHFFFAOYSA-M 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 150000004996 alkyl benzenes Chemical class 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- XCJYREBRNVKWGJ-UHFFFAOYSA-N copper(II) phthalocyanine Chemical compound [Cu+2].C12=CC=CC=C2C(N=C2[N-]C(C3=CC=CC=C32)=N2)=NC1=NC([C]1C=CC=CC1=1)=NC=1N=C1[C]3C=CC=CC3=C2[N-]1 XCJYREBRNVKWGJ-UHFFFAOYSA-N 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- VTIIJXUACCWYHX-UHFFFAOYSA-L disodium;carboxylatooxy carbonate Chemical compound [Na+].[Na+].[O-]C(=O)OOC([O-])=O VTIIJXUACCWYHX-UHFFFAOYSA-L 0.000 description 2
- 230000009977 dual effect Effects 0.000 description 2
- 150000002148 esters Chemical class 0.000 description 2
- 238000011010 flushing procedure Methods 0.000 description 2
- 238000005187 foaming Methods 0.000 description 2
- 238000009472 formulation Methods 0.000 description 2
- 229910052736 halogen Inorganic materials 0.000 description 2
- 150000002367 halogens Chemical class 0.000 description 2
- 230000002209 hydrophobic effect Effects 0.000 description 2
- 238000010348 incorporation Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 229910052749 magnesium Inorganic materials 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229940045872 sodium percarbonate Drugs 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- KEQGZUUPPQEDPF-UHFFFAOYSA-N 1,3-dichloro-5,5-dimethylimidazolidine-2,4-dione Chemical compound CC1(C)N(Cl)C(=O)N(Cl)C1=O KEQGZUUPPQEDPF-UHFFFAOYSA-N 0.000 description 1
- OFTZZDZZNXTWFO-UHFFFAOYSA-N 1,3-dichloro-5-ethyl-5-methylimidazolidine-2,4-dione Chemical compound CCC1(C)N(Cl)C(=O)N(Cl)C1=O OFTZZDZZNXTWFO-UHFFFAOYSA-N 0.000 description 1
- CUVLMZNMSPJDON-UHFFFAOYSA-N 1-(1-butoxypropan-2-yloxy)propan-2-ol Chemical compound CCCCOCC(C)OCC(C)O CUVLMZNMSPJDON-UHFFFAOYSA-N 0.000 description 1
- PIEXCQIOSMOEOU-UHFFFAOYSA-N 1-bromo-3-chloro-5,5-dimethylimidazolidine-2,4-dione Chemical compound CC1(C)N(Br)C(=O)N(Cl)C1=O PIEXCQIOSMOEOU-UHFFFAOYSA-N 0.000 description 1
- HUPNQNOWXCVQSW-UHFFFAOYSA-N 2h-pyran-4-carboxamide Chemical compound NC(=O)C1=CCOC=C1 HUPNQNOWXCVQSW-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
- PIICEJLVQHRZGT-UHFFFAOYSA-N Ethylenediamine Chemical compound NCCN PIICEJLVQHRZGT-UHFFFAOYSA-N 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- TTZMPOZCBFTTPR-UHFFFAOYSA-N O=P1OCO1 Chemical compound O=P1OCO1 TTZMPOZCBFTTPR-UHFFFAOYSA-N 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 1
- JXLHNMVSKXFWAO-UHFFFAOYSA-N azane;7-fluoro-2,1,3-benzoxadiazole-4-sulfonic acid Chemical compound N.OS(=O)(=O)C1=CC=C(F)C2=NON=C12 JXLHNMVSKXFWAO-UHFFFAOYSA-N 0.000 description 1
- 244000052616 bacterial pathogen Species 0.000 description 1
- 229910021538 borax Inorganic materials 0.000 description 1
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical class [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 1
- 235000011132 calcium sulphate Nutrition 0.000 description 1
- 239000004202 carbamide Substances 0.000 description 1
- 235000013877 carbamide Nutrition 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 150000007973 cyanuric acids Chemical class 0.000 description 1
- 239000000645 desinfectant Substances 0.000 description 1
- CEJLBZWIKQJOAT-UHFFFAOYSA-N dichloroisocyanuric acid Chemical compound ClN1C(=O)NC(=O)N(Cl)C1=O CEJLBZWIKQJOAT-UHFFFAOYSA-N 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- LYCAIKOWRPUZTN-UHFFFAOYSA-N ethylene glycol Natural products OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 150000001469 hydantoins Chemical class 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 239000001095 magnesium carbonate Substances 0.000 description 1
- 235000011160 magnesium carbonates Nutrition 0.000 description 1
- 235000019341 magnesium sulphate Nutrition 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 235000010755 mineral Nutrition 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 150000004682 monohydrates Chemical class 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920001083 polybutene Polymers 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000000518 rheometry Methods 0.000 description 1
- 238000013341 scale-up Methods 0.000 description 1
- 229920002545 silicone oil Polymers 0.000 description 1
- CDBYLPFSWZWCQE-UHFFFAOYSA-L sodium carbonate Substances [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 1
- 235000011182 sodium carbonates Nutrition 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 229960001922 sodium perborate Drugs 0.000 description 1
- 239000004328 sodium tetraborate Substances 0.000 description 1
- 235000010339 sodium tetraborate 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
- 239000000243 solution Substances 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000013268 sustained release Methods 0.000 description 1
- 239000012730 sustained-release form Substances 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- 235000012222 talc Nutrition 0.000 description 1
- 150000004685 tetrahydrates Chemical class 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
Images
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
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/37—Polymers
- C11D3/3703—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C11D3/3719—Polyamides or polyimides
-
- 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
- C11D17/0047—Detergents in the form of bars or tablets
- C11D17/0056—Lavatory cleansing blocks
-
- 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
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/39—Organic or inorganic per-compounds
- C11D3/3902—Organic or inorganic per-compounds combined with specific additives
- C11D3/3905—Bleach activators or bleach catalysts
- C11D3/3907—Organic 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
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/50—Perfumes
Definitions
- the present invention relates to lavatory blocks.
- Lavatory blocks are known in the art and are typically configured to provide an automatic and sustained release of active ingredients to the lavatory environment. For example, they may be suspended in a container under the rim of a lavatory bowl or urinal such that, during a flushing cycle, water from the cistern flows over the block thereby dissolving a portion of the block and releasing active ingredients of the block into the lavatory bowl.
- lavatory blocks contain a number of active ingredients in order to provide multiple lavatory care benefits such as cleansing, disinfection and fragrancing.
- Formulating and processing blocks with multiple active ingredients can lead to problems due to the physical and/or chemical incompatibility of such ingredients. For example, it has become commonplace for lavatory blocks to contain a halogen release agent or other bleaching agent. Such materials are powerful chemically reactive species, which are difficult to combine with other oxidation sensitive components (such as perfumes), particularly since blocks are commonly made by extrusion which subjects the ingredients to elevated temperatures and pressures.
- WO00/23558 describes how it is possible to provide a viable two-part lavatory cleansing block containing bleach and bleach-incompatible substances by extruding two compositions, only one of the compositions containing the bleach, and the other composition containing a component which is incompatible with the bleach, and ensuring that the two compositions do not have a common hydrophobe component. This is said to prevent the migration of the bleach sensitive component.
- the block parts are co-extruded side-by-side.
- a problem with such co-extrusion is that it places constraints on the formulation and the physical properties of the constituent block parts. For example, it is difficult to co-extrude parts of significantly different rheologies.
- WO 99/38950 describes a lavatory cleansing block having an inner region and an outer region which both comprise a different fragrance.
- the blocks are formed by co-extrusion.
- lavatory blocks continue to produce lavatory care benefits (such as fragrancing) throughout the useful life of the block, which is typically around 3 to 4 weeks under normal domestic use conditions.
- lavatory care benefits such as fragrancing
- a problem with the incorporation of high levels of perfume into blocks formed by an extrusion process is that such incorporation may produce an overplasticised or sticky formulation consistency that is difficult to extrude.
- perfume materials are normally hydrophobic and high levels may tend to ooze out from the block during manufacture and/or storage.
- US 5,759,974 describes a WC stick with a relatively high fragrance content in a cast core. This is said to have the advantage of the possibility of incorporating very large quantities of perfume in the core.
- the stick is manufactured by extruding a hollow shell, cutting the shell to its final length, and placing on a support in such a way that the moulding is closed underneath. The shells are then filled with the molten core material containing the perfume by means of a casting trolley.
- a problem with this manufacturing method is that it is difficult to scale up and/or operate as a continuous process.
- EP-A-1 418 225 discloses toilet cleaning and odorising agents comprising a gel phase and another phase, wherein the gel phase comprises a gel former, solvent and perfume.
- WO03/04262 describes how the fragrance life of an in-the-bowl (ITB) toilet article may be extended by placing the perfume in the second chamber of a dual chamber housing so that the perfume is not in the path of the flushing toilet water.
- the first chamber has an inlet and an outlet opening for water flow and typically contains a cleaning, disinfectant or anti-limescale composition in solid block form which fits into the chamber.
- a problem with this proposal is that the dual chamber housing is an expensive configuration to manufacture. Also, since the perfume is placed within a gel system which is deposited in the second chamber of the housing, this means that the entire housing will need replacing by the consumer once the perfume is exhausted.
- the underlying objective of the present invention is to resolve one or more of the problems outlined above.
- the present invention provides a lavatory cleansing and freshening block, comprising a solid phase and a gel phase, in which the gel phase contains from 25% to 90% by weight perfume (based on the total weight of the gel phase) and is positioned on the surface of the solid phase, characterised in that the gel phase is formed from a polyamide resin as further specified in claim 1.
- the gel phase releases perfume during as well as between the flushes
- the solid phase of the block according to the invention has a recess moulded on an outer surface in which the gel phase is positioned.
- the solid phase of the block according to the invention is preferably formed by a process which includes extrusion.
- a preferred process used to form the solid phase of the block is an extrusion process in which a mixture of the constituent ingredients of the solid phase is extruded into a continuous bar of solid phase which is subsequently cut into pieces of the desired size.
- the solid phase may be in the form of a single, homogeneous composition, or alternatively may be in the form of one or more layers.
- a multi-layered solid phase may suitably be produced by extrusion of the layers as complementary shapes which are brought together, or preferably by co-extrusion of the two layers side-by-side into a continuous bar as above.
- the provision of a multi-layered solid phase is advantageous because it enables incompatible components such as bleach and dye, or bleach and bleach activator, to be segregated by placing them in different layers, thereby enhancing stability and performance of the block.
- the solid phase of the block has a recess moulded on an outer longitudinal surface thereof.
- the recess extends along the entire length or width of the longitudinal surface of the solid phase of the block as a strip or groove.
- the recess may be moulded on an outer longitudinal surface of the solid phase of the block by stamping, or preferably by extruding the constituent ingredients of the solid phase through a specially shaped extruder head so that the recess is formed in an outer longitudinal surface of the solid phase as it is extruded.
- stamping or preferably by extruding the constituent ingredients of the solid phase through a specially shaped extruder head so that the recess is formed in an outer longitudinal surface of the solid phase as it is extruded.
- the gel phase is positioned in the recess of the solid phase. It is put into position by injection into the recess. In a more preferred process, the constituent ingredients of the gel phase are heated, mixed and dosed through a nozzle into the recess of the solid phase.
- the constituent ingredients of the solid phase are extruded through a specially shaped extruder head to form a recess as described above, and the extrudate so formed is mounted to travel upon a belt conveyor which is arranged so that the gel phase may be injected continuously into the recess of the solid phase as it travels along the belt conveyor, for example by dosing the gel phase into the recess through a nozzle as described above. Cooling and cutting of the gel-filled extrudate so formed may then take place to produce the final lavatory block according to the invention. Again this enables continuous operation of the block manufacturing process.
- Fig 1 depicts an extruded block having a recess moulded along the entire length of a longitudinal surface of the solid phase 1, which is filled with the gel phase 2.
- Fig. 2 depicts an extruded block having a recess moulded along the entire width of a longitudinal surface of the solid phase 1, which is filled with the gel phase 2.
- the weight ratio of solid phase to gel phase in the block according to the invention suitably ranges from 40:1 to 5:1, preferably from 30:1 to 5:1, more preferably from 25:1 to 10:1, more preferably from 25:1 to 12.5:1.
- Suitable substances used to form the solid phase include surfactants, hygiene agents, fillers, whiteners and complexing agents.
- Surfactants serve to provide a cleansing and foaming effect.
- the total amount of surfactant, when present, will generally range from 10 to 70wt%, more preferably from 20 to 50wt% (by weight based on the total weight of the solid phase).
- Anionic surfactants are preferably used. Suitable anionic surfactants include alkali metal or ammonium alkylaryl sulphonates (especially alkyl benzene sulphonates), alkane sulphonates, alkyl sulphates and sarcosinates.
- the solid phase comprises from 1 to 20wt%, more preferably from 5 to 15wt% of a primary alkyl sulphate (by weight based on the total weight of the solid phase), and from 5 to 40wt%, more preferably from 10 to 35wt%, even more preferably from 15-35% of other anionic surfactants (by weight based on the total weight of the solid phase).
- Preferred other anionic surfactants are sulphonate anionic surfactants, such as alkyl benzene sulphonates (ABS).
- Hygiene agents may be used in the solid phase to inhibit germs and keep the lavatory clean.
- the total amount of such materials, when present, will generally range from 5 to 50wt%, more preferably from 5 to 30wt% (by total weight of hygiene agent based on the total weight of the solid phase).
- Preferred hygiene agents for use in the block according to the invention are bleaching agents, optionally in combination with one or more bleach activators.
- Suitable classes of bleaching agent include materials which release active halogen and materials which release active oxygen. Examples from these classes include chlorinated cyanuric acid derivatives such as sodium dichloroisocyanurate; halogenated hydantoins such as 1,3-dichloro-5,5-dimethyl hydantoin , bromochloro-5,5-dimethyl hydantoin and 1,3-dichloro-5-ethyl-5-methyl hydantoin; alkali metal percarbonates such as sodium percarbonate, and alkali metal perborates such as sodium perborate (monohydrate and tetrahydrate). Preferred examples are sodium percarbonate and sodium perborate monohydrate.
- the solid phase comprises from 5 to 15wt%, more preferably around 10wt% of an oxygen bleach such as alkali metal perborate (by weight based on the total weight of the solid phase), and from 1 to 10wt%, more preferably around 6wt% of a bleach activator such as tetraacetylethylene-diamine (TAED).
- an oxygen bleach such as alkali metal perborate
- TAED tetraacetylethylene-diamine
- the perborate and TAED are segregated into different layers of the solid phase.
- the solid phase of the block according to the present invention comprises up to 60% by weight of a filler.
- Preferred levels of filler range from 30 to 50wt% (by total weight filler based on the total weight of the solid phase).
- Suitable fillers include urea, sodium, magnesium and calcium carbonates, sodium chloride, borax, talc and sodium, magnesium and calcium sulphates.
- the solid phase comprises from 10 to 25wt% of a sulphate filler, most preferably sodium sulphate (by weight based on the total weight of the solid phase), and from 15 to 35wt% of a carbonate filler, most preferably calcium carbonate (by weight based on the total weight of the solid phase).
- a sulphate filler most preferably sodium sulphate (by weight based on the total weight of the solid phase)
- carbonate filler most preferably calcium carbonate (by weight based on the total weight of the solid phase).
- Whiteners and/or colouring agents may be present in the solid phase of the block according to the present invention, particularly when the solid phase has a multi-layered structure. If present, these materials should be chosen such that they are compatible with any bleaching agent present. Suitable colouring agents include Pigment Blue 15 (CI 74160) and Pyramid S Green TM , ex Minchem. Titanium dioxide is an acceptable whitener. Levels of whiteners and/or colouring agents are typically below 5wt% by total weight based on the total weight of the solid phase.
- the solid phase may usefully contain complexing agents for water hardness and also for the heavy metal ions often encountered in water such as iron and manganese. Furthermore, the complexing agent may also improve the stability of any bleaching agent in the solid phase.
- suitable classes of complexing agents are aminopolycarboxylic acids, polyphosphonic acids and their salts, polymeric polycarboxylic acids and their salts, and hydroxypolycarboxylic acids and their salts.
- Preferred are polyphosphonic acids and salts such as EDTMP (ethylene diamine tetra(methylene phosphonate)), Ca/Na salt.
- the solid phase comprises from 0.1 to 0.5wt% complexing agent (by weight based on the total weight of the solid phase).
- the solid phase of the block according to the invention may comprise a processing aid to assist in extrusion.
- processing aids include oils (including both mineral and silicone oils), esters, alcohol ethoxylates, polybutene and most preferably glycol ethers.
- the preferred level of glycol ether is up to 4.5wt% (by weight based on the total weight of the solid phase).
- the solid phase may comprise a perfume wich may also partly or totally perform the function of processing aid.
- the gel phase contains from 25 to 90% by weight of perfume (based on the total weight of the gel phase) and is positioned in the recess of the solid phase, by injection.
- the gel phase contains 25-90%, more preferably 40% to 70%, even more preferably 40-60% by weight perfume (based on the total weight of the gel phase).
- Suitable methods of forming the gel phase include heating, melting and mixing the perfume and gel together in a vessel, or alternatively, heating and melting the gel in a vessel, followed by adding the perfume to the melted gel and then mixing.
- the perfume may be a single discrete ingredient, but more typically will be a complex blend of volatile liquid (and some solid) ingredients of natural and/or synthetic origin.
- the gelling agents used to form the gel phase in the block according to the invention are polyamide resins. Particularly preferred are ester-terminated polyamide (ETPA) resins, such as are described in US 5,783,657 , and tertiary amide-terminated polyamide (ATPA) resins, such as are are described in US 6,268,466 . These materials create clear gels in a wide variety of solvents.
- EPA ester-terminated polyamide
- A tertiary amide-terminated polyamide
- Suitable resins are available commercially from Arizona Chemicals as UNCLEAR TM and SYLVACLEAR TM gellants. Particularly preferred are UNICLEAR TM 100 and SYLVACLEAR TM A200.
- a preferred gel phase for use in the block according to the invention may be prepared by warming the gelling agent, a polyamide resin as described above, and the perfume with gentle mixing. At an elevated temperature, typically around 65 to 70 degrees C, the gelling agent and the perfume form a solution or dispersion. The warm liquid mixture may be injected into the recess of the solid phase of the block as described above.
- the gel phase may include other optional additives as commonly used in the art, including solvents or carriers, inert additives such as pigmented or pearlescent particles for aesthetic purposes, or soluble additives such as colourants.
- Solvents are not required to form the gel, but may be used to dilute perfume ingredients to a suitable concentration. Hydrophobic solvents are generally preferred for this purpose and well known examples are C1-C4 esters of C8-C20 fatty acids.
- the gel phase of the blocks according to the invention is preferably insoluble in water and thereby substantially retains its shape and size during the entire lifetime of the block.
- Blocks according to the invention are preferably arranged in suitable holders such as cage or basket-like containers which can be suspended over the lavatory rim in such a position that they can be reached by the flush water which flows past whenever the lavatory is flushed. They are normally suspended from the inner rim of the lavatory bowl, for example by a hook.
- suitable holders such as cage or basket-like containers which can be suspended over the lavatory rim in such a position that they can be reached by the flush water which flows past whenever the lavatory is flushed. They are normally suspended from the inner rim of the lavatory bowl, for example by a hook.
- Lavatory blocks were prepared having a two-layer solid phase with ingredients as shown in the following Tables:
- INGREDIENT LEVEL (wt% of total layer) Sodium ABS (1) 21.000 Sodium PAS (2) 7.000 Sodium Perborate Monohydrate 20.000 EDTMP Ca/Na salt (3) 0.204 Calcium Carbonate 19.850 Sodium Sulphate 19.772 Titanium Dioxide 1.000 Colourant (4) 1.000 Glycol Ether (5) 3.750 Minors to 100%
- INGREDIENT LEVEL (wt% of total layer) Sodium ABS (1) 21.000 Sodium PAS (2) 7.000 TAED granules (83% a.i.) 12.450 EDTMP Ca/Na salt (3) 0.204 Calcium Carbonate 23.000 Sodium Sulphate 23.122 Titanium Dioxide 0.500 Glycol Ether (5) 3.750 Minors to 100% (1) Nansa TM HS 80/L, (80% a.i.), ex Huntsman (2) Empicol TM LZ-V, (90% a.i.), ex Huntsman (3) Dequest TM 2047, (34% a.i.), ex Solutia (4) Pyramid S Green, ex Minchem (5) Dowanol TM DPNB, ex Dow
- the solid phase was formed by an extrusion process in which the ingredients of each layer were mixed and co-extruded as a plasticised mass through an extruder head so as to form a continuous bar of the two layers A and B side-by-side.
- the extruder head was shaped so as to produce a groove of 10 mm width extending along the entire length of one of the outer longitudinal surfaces of the bar, and spanning the two layers A and B.
- a gel phase was prepared by mixing 50wt% UNICLEAR TM 100, ex Arizona Chemical, 49.988wt% perfume (EMPTYSKY 375, ex IFF) and 0.012wt% dye (Sudan Blue, ex BASF) in a mixer heated by a heating jacket to 65 to 70 degrees C and equipped with a pump and nozzle.
- the hot gel phase was dosed by pumping it through the nozzle so as to inject it into the recess of the solid phase which was mounted to run upon a belt conveyor into the path of the nozzle.
- the gel-filled bar of solid phase so produced was then cut into 48mm lengths to form the final lavatory blocks.
- the blocks were tested by placing in a cage suspended over the rim of a lavatory which was contained in a booth measuring 4.35 cubic meters and which was flushed 15 times a day.
- the perfume intensity of the blocks was evaluated on a scale of 1 to 10 by a panel of 20 subjects.
- the blocks of the invention gave improved perfume performance over 160 flushes compared to control blocks of equivalent dimensions and solid phase composition, but in which the perfume was distributed throughout the block rather than incorporated into a separate gel phase.
- the improved perfume performance of the blocks of the invention was observed even with lower overall levels of perfume than in the control blocks (1g vs 1.6g), and was consistent over the life of the block and also in between flushes.
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Detergent Compositions (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Bidet-Like Cleaning Device And Other Flush Toilet Accessories (AREA)
- Cosmetics (AREA)
Claims (7)
- Toilettenreinigungs- und Erfrischungsblock, umfassend eine feste Phase und eine Gelphase, wobei die Gelphase 25 % bis 90 Gewichtsprozent Parfüm (bezogen auf das Gesamtgewicht der Gelphase) enthält und auf der Oberfläche der festen Phase angeordnet ist, dadurch gekennzeichnet, dass die Gelphase aus einem Polyamidharz gebildet ist, wobei die Gelphase in eine Vertiefung auf einer äußeren Längsoberfläche der festen Phase eingespritzt ist.
- Block nach Anspruch 1, worin die feste Phase in Form von einer oder mehreren Schichten vorliegt.
- Block nach Anspruch 1 oder Anspruch 2, worin die feste Phase 10 bis 70 Gewichtsprozent Tensid (auf das Gewicht, bezogen auf das Gesamtgewicht der festen Phase) umfasst.
- Block nach einem der Ansprüche 1 bis 3, worin die feste Phase 5 bis 15 Gewichtsprozent eines Alkalimetallperborats (auf das Gewicht, bezogen auf das Gesamtgewicht der festen Phase) und 1 bis 10 Gewichtsprozent eines Bleichmittelaktivators (auf das Gewicht, bezogen auf das Gesamtgewicht der festen Phase) umfasst.
- Block nach einem der Ansprüche 1 bis 4, worin die feste Phase 0,1 bis 0,5 Gewichtsprozent eines Komplexierungsmittels (auf das Gewicht, bezogen auf das Gesamtgewicht der festen Phase) umfasst.
- Block nach Anspruch 5, worin das Polyamidharz ein Esterendständiges Polyamid-(ETPA)-harz oder ein tertiäres Amidendständiges Polyamid-(ATPA)-harz darstellt.
- Block nach einem der Ansprüche 1 bis 6, worin die Gelphase 40 bis 60 Gewichtsprozent Parfüm (auf das Gewicht, bezogen auf das Gesamtgewicht der Gelphase) enthält.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE602004005409T DE602004005409T3 (de) | 2004-01-08 | 2004-12-17 | Stückförmige Toilettenreinigungsmittel |
EP04078440A EP1553162B2 (de) | 2004-01-08 | 2004-12-17 | Stückförmige Toilettenreinigungsmittel |
PL04078440T PL1553162T5 (pl) | 2004-01-08 | 2004-12-17 | Toaletowe kostki |
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP04250068 | 2004-01-08 | ||
EP04250068 | 2004-01-08 | ||
EP04078021 | 2004-11-03 | ||
EP04078021 | 2004-11-03 | ||
EP04078440A EP1553162B2 (de) | 2004-01-08 | 2004-12-17 | Stückförmige Toilettenreinigungsmittel |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1553162A1 EP1553162A1 (de) | 2005-07-13 |
EP1553162B1 EP1553162B1 (de) | 2007-03-21 |
EP1553162B2 true EP1553162B2 (de) | 2011-04-20 |
Family
ID=36712568
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04078440A Active EP1553162B2 (de) | 2004-01-08 | 2004-12-17 | Stückförmige Toilettenreinigungsmittel |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP1553162B2 (de) |
AT (1) | ATE357502T1 (de) |
DE (1) | DE602004005409T3 (de) |
ES (1) | ES2285350T5 (de) |
PL (1) | PL1553162T5 (de) |
RU (1) | RU2377283C2 (de) |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1963475A1 (de) * | 2006-06-23 | 2008-09-03 | Reckitt Benckiser Inc. | Verbesserungen an ausgabevorrichtungen und zusammensetzungen dafür |
ZA200902458B (en) * | 2006-11-16 | 2010-07-28 | Unilever Plc | Self adhesive hard surface cleaning block |
DE102007033077A1 (de) | 2007-07-13 | 2009-01-15 | Buck- Chemie Gmbh | Stückförmiges Reinigungsmittel für den Sanitärbereich mit einem Werbeträger |
FR2957085B1 (fr) | 2010-03-05 | 2012-06-01 | Eurvest | Bloc detergent pour toilettes, dispositif de nettoyage de toilettes comportant un bloc detergent et procede de fabrication d'un bloc detergent |
DE102010013304A1 (de) | 2010-03-29 | 2011-09-29 | Buck- Chemie Gmbh | Reinigungs- und Beduftungsmittel für den Sanitärbereich |
DE102011100859A1 (de) | 2011-05-06 | 2012-11-08 | Buck-Chemie Gmbh | Stückförmiges Sanitärmittel |
US10106763B2 (en) | 2012-05-17 | 2018-10-23 | Colgate-Palmolive Company | Multiphase surfactant fragrance composition |
DE102015215135A1 (de) | 2015-08-07 | 2017-02-09 | Henkel Ag & Co. Kgaa | WC-Stein und WC-Körbchen |
DE102016102949A1 (de) | 2016-02-19 | 2017-08-24 | Buck-Chemie Gmbh | Reinigungs- und Beduftungsmittel für den Sanitärbereich und Herstellungsverfahren |
DE102016110584A1 (de) | 2016-06-08 | 2017-12-14 | Buck-Chemie Gmbh | Vorrichtung mit Reinigungsmittel für den Toilettenbereich und ein Herstellungsverfahren |
DE102018123683A1 (de) | 2018-09-26 | 2020-03-26 | Buck Service Gmbh | Reinigungs- und Beduftungsmittel für den Sanitärbereich und Herstellungsverfahren |
DE102022203708A1 (de) | 2022-04-13 | 2023-10-19 | Henkel Ag & Co. Kgaa | Verfahren zur Herstellung einer Waschmittelportionseinheit |
DE102022203711A1 (de) | 2022-04-13 | 2023-10-19 | Henkel Ag & Co. Kgaa | Verfahren zur Herstellung einer Waschmittelportionseinheit |
DE102022203707A1 (de) | 2022-04-13 | 2023-10-19 | Henkel Ag & Co. Kgaa | Verfahren zur Herstellung einer Waschmittelportionseinheit |
DE102022203705A1 (de) | 2022-04-13 | 2023-10-19 | Henkel Ag & Co. Kgaa | Verfahren zur Herstellung einer Waschmittelportionseinheit |
DE102022203706A1 (de) | 2022-04-13 | 2023-10-19 | Henkel Ag & Co. Kgaa | Verfahren zur Herstellung einer Waschmittelportionseinheit |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5780527A (en) * | 1994-08-19 | 1998-07-14 | Firmenich Sa | Perfuming device for perfuming and sanitizing ambient air |
US5783657A (en) * | 1996-10-18 | 1998-07-21 | Union Camp Corporation | Ester-terminated polyamides of polymerized fatty acids useful in formulating transparent gels in low polarity liquids |
CA2311721C (en) * | 1997-11-26 | 2004-10-12 | The Procter & Gamble Company | Detergent tablet |
GB2333778B (en) * | 1998-01-29 | 2000-02-09 | Reckitt & Colman France | A lavatory block |
EP1121159B1 (de) | 1998-10-22 | 2003-06-11 | Reckitt Benckiser (UK) LIMITED | Dampffreisetzender gegenstand |
AU748762B2 (en) * | 1999-03-29 | 2002-06-13 | Unilever Plc | Lavatory cleansing compositions |
CN1267542C (zh) | 2001-11-13 | 2006-08-02 | 雷克特本克斯尔有限公司 | 对抽水马桶清洁制品的改良 |
DE20221220U1 (de) * | 2002-11-08 | 2005-07-07 | Buck-Chemie Gmbh | Toilettenreinigungs- und Beduftungsmittel |
EP1469132B2 (de) | 2003-04-15 | 2014-05-14 | The Procter & Gamble Company | Unter dem Spülrand eines Toilettenbeckens zu montierende Vorrichtung zur Erzeugung einer Kombination aus permanenter Duftabgabe und eines Duftstosses beim Spülen |
ES2381969T3 (es) | 2003-06-12 | 2012-06-04 | Firmenich Sa | Geles para dispensar materiales volátiles activos |
-
2004
- 2004-12-17 ES ES04078440T patent/ES2285350T5/es active Active
- 2004-12-17 PL PL04078440T patent/PL1553162T5/pl unknown
- 2004-12-17 EP EP04078440A patent/EP1553162B2/de active Active
- 2004-12-17 AT AT04078440T patent/ATE357502T1/de not_active IP Right Cessation
- 2004-12-17 DE DE602004005409T patent/DE602004005409T3/de active Active
- 2004-12-29 RU RU2004138756/15A patent/RU2377283C2/ru active
Also Published As
Publication number | Publication date |
---|---|
PL1553162T5 (pl) | 2011-07-29 |
ATE357502T1 (de) | 2007-04-15 |
RU2377283C2 (ru) | 2009-12-27 |
PL1553162T3 (pl) | 2007-08-31 |
ES2285350T3 (es) | 2007-11-16 |
ES2285350T5 (es) | 2011-06-17 |
DE602004005409T2 (de) | 2007-07-12 |
DE602004005409T3 (de) | 2011-08-18 |
EP1553162B1 (de) | 2007-03-21 |
RU2004138756A (ru) | 2006-06-10 |
EP1553162A1 (de) | 2005-07-13 |
DE602004005409D1 (de) | 2007-05-03 |
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