AU642230B2 - Process for preparing granules for detergent compositions - Google Patents
Process for preparing granules for detergent compositions Download PDFInfo
- Publication number
- AU642230B2 AU642230B2 AU74325/91A AU7432591A AU642230B2 AU 642230 B2 AU642230 B2 AU 642230B2 AU 74325/91 A AU74325/91 A AU 74325/91A AU 7432591 A AU7432591 A AU 7432591A AU 642230 B2 AU642230 B2 AU 642230B2
- Authority
- AU
- Australia
- Prior art keywords
- granules
- zeolite
- process according
- smectite clay
- finely divided
- 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.)
- Ceased
Links
- 239000008187 granular material Substances 0.000 title claims description 50
- 239000000203 mixture Substances 0.000 title claims description 32
- 239000003599 detergent Substances 0.000 title claims description 20
- 238000004519 manufacturing process Methods 0.000 title claims description 6
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims description 40
- 239000010457 zeolite Substances 0.000 claims description 40
- 229910021536 Zeolite Inorganic materials 0.000 claims description 39
- 239000004927 clay Substances 0.000 claims description 32
- 229910021647 smectite Inorganic materials 0.000 claims description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 18
- 238000000034 method Methods 0.000 claims description 17
- 239000002245 particle Substances 0.000 claims description 13
- 238000009826 distribution Methods 0.000 claims description 6
- 239000011230 binding agent Substances 0.000 claims description 5
- 238000001035 drying Methods 0.000 claims description 3
- 238000010348 incorporation Methods 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 239000011369 resultant mixture Substances 0.000 claims description 3
- 238000007873 sieving Methods 0.000 claims description 3
- 239000011148 porous material Substances 0.000 claims description 2
- 239000000126 substance Substances 0.000 claims description 2
- 239000000440 bentonite Substances 0.000 description 7
- 229910000278 bentonite Inorganic materials 0.000 description 7
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 7
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 6
- 239000000843 powder Substances 0.000 description 5
- 230000001427 coherent effect Effects 0.000 description 4
- 239000004615 ingredient Substances 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 229910019142 PO4 Inorganic materials 0.000 description 2
- 239000002202 Polyethylene glycol Substances 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- 239000003945 anionic surfactant Substances 0.000 description 2
- 239000007844 bleaching agent Substances 0.000 description 2
- 150000001768 cations Chemical class 0.000 description 2
- GUJOJGAPFQRJSV-UHFFFAOYSA-N dialuminum;dioxosilane;oxygen(2-);hydrate Chemical compound O.[O-2].[O-2].[O-2].[Al+3].[Al+3].O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O GUJOJGAPFQRJSV-UHFFFAOYSA-N 0.000 description 2
- 229910052901 montmorillonite Inorganic materials 0.000 description 2
- 239000002736 nonionic surfactant Substances 0.000 description 2
- 235000021317 phosphate Nutrition 0.000 description 2
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 2
- 229920001223 polyethylene glycol Polymers 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- 239000004094 surface-active agent Substances 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 102000004190 Enzymes Human genes 0.000 description 1
- 108090000790 Enzymes Proteins 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
- JLVVSXFLKOJNIY-UHFFFAOYSA-N Magnesium ion Chemical compound [Mg+2] JLVVSXFLKOJNIY-UHFFFAOYSA-N 0.000 description 1
- IGFHQQFPSIBGKE-UHFFFAOYSA-N Nonylphenol Natural products CCCCCCCCCC1=CC=C(O)C=C1 IGFHQQFPSIBGKE-UHFFFAOYSA-N 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 239000004115 Sodium Silicate Substances 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 150000004996 alkyl benzenes Chemical class 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- 229910000323 aluminium silicate Inorganic materials 0.000 description 1
- 238000005282 brightening Methods 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910001424 calcium ion Inorganic materials 0.000 description 1
- VNSBYDPZHCQWNB-UHFFFAOYSA-N calcium;aluminum;dioxido(oxo)silane;sodium;hydrate Chemical compound O.[Na].[Al].[Ca+2].[O-][Si]([O-])=O VNSBYDPZHCQWNB-UHFFFAOYSA-N 0.000 description 1
- 238000005341 cation exchange Methods 0.000 description 1
- 229920003086 cellulose ether Polymers 0.000 description 1
- 238000012505 colouration Methods 0.000 description 1
- VTIIJXUACCWYHX-UHFFFAOYSA-L disodium;carboxylatooxy carbonate Chemical compound [Na+].[Na+].[O-]C(=O)OOC([O-])=O VTIIJXUACCWYHX-UHFFFAOYSA-L 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 150000002191 fatty alcohols Chemical class 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 229910000271 hectorite Inorganic materials 0.000 description 1
- KWLMIXQRALPRBC-UHFFFAOYSA-L hectorite Chemical compound [Li+].[OH-].[OH-].[Na+].[Mg+2].O1[Si]2([O-])O[Si]1([O-])O[Si]([O-])(O1)O[Si]1([O-])O2 KWLMIXQRALPRBC-UHFFFAOYSA-L 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 229910001425 magnesium ion Inorganic materials 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910000273 nontronite Inorganic materials 0.000 description 1
- SNQQPOLDUKLAAF-UHFFFAOYSA-N nonylphenol Chemical compound CCCCCCCCCC1=CC=CC=C1O SNQQPOLDUKLAAF-UHFFFAOYSA-N 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 239000002516 radical scavenger Substances 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 229910000275 saponite Inorganic materials 0.000 description 1
- 229920002545 silicone oil Polymers 0.000 description 1
- 239000000344 soap Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 235000019982 sodium hexametaphosphate Nutrition 0.000 description 1
- 229940045872 sodium percarbonate Drugs 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
- 229910052911 sodium silicate Inorganic materials 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000001694 spray drying Methods 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 229910021653 sulphate ion Inorganic materials 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000005406 washing Methods 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
- C11D11/00—Special methods for preparing compositions containing mixtures of detergents
- C11D11/0082—Special methods for preparing compositions containing mixtures of detergents one or more of the detergent ingredients being in a liquefied state, e.g. slurry, paste or melt, and the process resulting in solid detergent particles such as granules, powders or beads
-
- 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
- C11D3/02—Inorganic compounds ; Elemental compounds
- C11D3/12—Water-insoluble compounds
- C11D3/124—Silicon containing, e.g. silica, silex, quartz or glass beads
- C11D3/1246—Silicates, e.g. diatomaceous earth
- C11D3/1253—Layer silicates, e.g. talcum, kaolin, clay, bentonite, smectite, montmorillonite, hectorite or attapulgite
- C11D3/1266—Layer silicates, e.g. talcum, kaolin, clay, bentonite, smectite, montmorillonite, hectorite or attapulgite in liquid compositions
-
- 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
- C11D3/02—Inorganic compounds ; Elemental compounds
- C11D3/12—Water-insoluble compounds
- C11D3/124—Silicon containing, e.g. silica, silex, quartz or glass beads
- C11D3/1246—Silicates, e.g. diatomaceous earth
- C11D3/128—Aluminium silicates, e.g. zeolites
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)
- Silicates, Zeolites, And Molecular Sieves (AREA)
Description
Ism 4 2 0 COMMONWEALTH OF AUSTRALIA PATENTS ACT 1952 Foam COMPLETE SPECIFICATION
(ORIGINAL)
FOR OFFICE USE Class Number: Lodged: Int. Class Aplication 0 *(gpplete Specification-Lodged: 00 0:Accepted; :0 Published: Ptl~ity: Related Art: BE COMPLETED BY APPLICANT Name of Apj'icant: ECO INTERNATIONAL LIMITED Address of Applicant: John Keay House, St. Austell, Cornwall, I United Kingdom PL 25 4DJ Actual Inventor: Address for Service: Howard GOODMAN, Gary Arthur LYMATH, DAvi*d John STOCKLEY SMITH SHELSTON BEADLE Suit'e 207 Great'North Road FIVE DOCK NSW 2046 Complete Specification for the Invention entitled: pr:ocxctS r0 1 epaC-p(jt.6& GRANULES FOR DETERGENT The following statement is a full description of this invention, including the best method of performing it known -to Me- PROCESS FOR PREPARING GRANULES FOR DETERGENT
COMPOSITIONS
This invention relates to a process for preparing granules for incorporation into detergent compositions and, in particular, to a process for preparing granules comprising a zeolite; and to detergent composition containing the granules produced by the process.
It is generally desirable that the components of a detergent composition should be in granule form because the bulk density of a granular composition is higher than that of a finely divided powder with the result that a given weight of the composition can be packed into a smaller container when the composition is S* granular than when it is in powder form.
15 The granules should be free flowing and should also be resistant to crushing and abrasion so that they can withstand handling and transportation in containers. They should also be relatively white in colour and will typically have sizes in the range of 20 from 0.75mm to Zeolite, which is a cation exchanging S aluminosilicate, is included in detergent compositions to perform the function of a builder or scavenger of metal cations, especially calcium and magnesium ions, from the washing water, which ions, if allowed to remain in solution, would impair the effectiveness of the surfactant present in the detergent composition.
Until recent years the function of the builder in detergent compositions has been fulfilled by watersoluble condensed phosphate salts, for example sodium hexametaphosphates, but the discharge of large quantities of phosphates into rivers is damaging to the environment, and there is therefore a growing trend towards replacing phosphate builders with zeolites. A zeolite with a particularly advantageous cation exchange capacity is known as zeolite A or zeolite 4A, -2and it is this zeolite which is commonly found in detergent compositions. Zeolite A is generally available in commerce in the form of a fine powder having particles of size of the order of a few microns, but it has hitherto been found difficult to form the zeolite into granules of suitable size which are sufficiently coherent to withstand handling and transportation in packages without the use of additional binding materials which add to the expense and are undesirable in the complete detergent compositions. An attempt to overcome this problem is disclosed in EP-A-0279040 in which the detezgent builder is prepared by spray-drying a feed suspension containing the zeolite and bentonite.
S 15 A smectite clay, for example bentonite, is often included in a detergent composition. The clay may be included on account of its fabric softening properties, or as a stabilising agent for the detergent composition, but the use of the clay brings with it the 20 disadvantage that the clay is somewhat dark in colour
S
and therefore imparts an undesirable dark colouration 9* to the composition containing it.
According to one aspect of the invention there is provided a process for preparing a granule for incorporation in a detergent composition, which process comprises the steps of tumbling together in a rotating pan a finely divided, particulate smectite clay and a finely divided, particulate zeolite in a weight ratio of from 1:9 to 9:1 whilst sufficient water is added slowly to the resultant mixture to bind the particles together to form granules of a mixture of said smectite clay and said zeolite; and drying the resultant granules to reduce the water content to not more than 20% of the total weight of the granules.
-3- The process of the invention preferably includes the further step of: sieving the dried granules to yield a product comprising granules having sizes in the range from 0.75mm to Granules prepared in accordance with the invention are solid and will comprise the smectite clay and zeolite in a weight ratio of from 1:9 to 9:1.
The present invention also provides a detergent composition which includes granules prepared in o accordance with the process of the present invention.
The detergent composition will contain a surfactant and optionally other ingredients in amounts known per se.
The smectite clay may be montmorillonite, 15 saponite, hectorite, nontronite or beidellite, but is most conveniently a bentonite clay which is a naturally occurring clay of volcanic origins consisting predominantly of montmorillonite.
The weight ratio of zeolite to smectite clay 20 charged to the pan may preferably be in the range of from 2:8 to 8:2, more preferably 3:7 to 7:3, especially 7:3.
The smectite clay in its initial, finely divided, particulate form preferably has E, particle size distribution such that substantially all of it passes through a No. 60 mesh British Standard sieve (nominal aperture 0.250mm).
The zeolite is most advantageously a synthetic zeolite such as zeolite A which has a chemical composition corresponding to the approximate formula:- 1.0+0.2 Na 2 O. A1 2 0 3 1.9+0.1 SiO 2 0-5.1H 2 0 and an apparent pore width of approximately 4 Angstrom units. Preferably, the initial, finely divided, particulate zeolite has a particle size distribution such that it consists predominantly of particles having sizes in the range from 1 to 10 microns.
-4- The granules of the present invention may also incorporate miinor proportions of other ingredients, and up to 20% of the total weight of the granules may be water (as residual water derived either from the water binder added or moisture present in either of the clay or zeolite components). No additional liquid binder material is essential to form the granules; i.e. the water used in step is preferably the sole liquid binder employed. The size of the final granules, after sieving is preferably from 0.75mm to 2.0mm, most preferably from 0.85mm to 1.7mm. Also, the granules preferably should not contain more than about 7% by weight of particles smaller than 0.15mm.
In the process of the invention, the smectite clay S 15 and the zeolite are preferably tumbled together in a pan granulator. The Eirich pan granulator is an example of a particularly suitable device. The quantities of zeolite and smectite clay added to the pan are those necessary to give the desired proportions 20 of each component in the resultant granules and this will normally mean that from 10 to 90% by weight of smectite clay and from 90 to 10% by weight of zeolite are added, based on the total weight of smectite clay and zeolite. The water is preferably added in the form of a fine spray and in an amount such that it constitutes preferably at least 10% and preferably no o more than 40% of the total weight of the granules formed in step of the process. Thus, for every 100 parts by weight of smectite clay/zeolite mixture charged to the pan, from about 11 to about 67 parts by weight of water may be employed.
The granules may conveniently be thermally dried in step in, for example, a fluidised bed dryer.
The process of the present invention provides granules which are sufficiently coherent to withstand handling and transportation in containers without the
S.
04 0 0*0 0 0) 0* i 0 0*.
0r 0*00 00 0 use of an additional binding material. It is believed that the smectite clay itself acts as a binder which makes it possible to form coherent granules containing a zeolite. Ine granules of the invention also have the advantages of being relatively light in colour compared with the smectite clay on its own.
A typical, conventional detergent composition contains the following ingredients normally in amounts in the ranges given below:- Ingredient by weight Anionic surfactant 1 Nonionic surfactant 1 17 Suds controlling agent 0 0.6 Zeolite A .1 15 Sodium carbonate 10 Bleaching agent 0 Smectite clay 1 Cellulose ether 0 Enzymes 0 Optical brightening agent 0.05 0.25 Sodium silicate 0 Formulation aid 0 1 Water to 100 With the present invention, at least part of the Zeolite .A and at least part of the smectite clay in the foregoing composition can be replaced by granules in accordance with the present invention.
The anionic surfactant may be, for example, an alkyl benzene sulphonate or a fatty alcohol ether sulphate.
The nonionic surfactant may be, for example, an alkyl polyethyleneglycol ether or a nonylphenol polyethyleneglycol ether.
The suds controlling agent may be, for example, a soap, a silicone oil or a paraffin.
The bleaching agent may be, for example, sodium -6perborate or sodium percarbonate.
The invention is illustrated by the following Example.
EXAMPLE
A bentonite clay having a particle size distribution such that 99% by weight passed a No. mesh British Standard sieve (nominal aperture 0.250mm) and 85% by weight passed a No. 200 mesh British Standard sieve (nominal aperture 0.076mm) and a zeolite A powder having a particle size distribution such that 70% by weight consisted of particles in the range from 2 to 6 microns were loaded ino the pan of an Eirich granulator in the proportions 70% by weight of zeolite and 30% by weight of bentonite. The pan was set in 15 motion at a speed of 46 rpm and the agitator at a speed of 1429m.min" and the clay and zeolite were mixed in a substantially dry state for 15 seconds. During the next 10 seconds, with the pan and agitator rotating at the same speeds, sufficient water was sprayed on to the 20 mixture of clay and zeolite to give a final water .content of the granules of 33% by weight. Finally the moist granules were tumbled in the pan of the granulator for a further 75 seconds at the same speed settings for the pan and for the agitator.
The moist granules were then dried in a fluidised bed dryer at a temperature of 80 0 C for a time sufficient to reduce the water content of the granules to 14% by weight. The granules were then screened on a sieve having a nominal aperture size of 1.2mm and the granules passing through the sieve were retained as the product. The starting materials and the product granules were tested for bulk density and for reflectance to violet light of wavelength 457nm and the results obtained are set forth in the following Table: -7-
TABLE
Bulk reflectance to light density of 457nm wavelenth (g.cm"M 3 powder granule Bentonite 0.70 76.0 53.0 Zeolite A 0.50 94.5 Bentonite/zeolite A granule 0.73 77.1 The granules were found to be sufficiently coherent to be able to withstand bulk handling and transportation in containers, and the reflectance to violet light of 457nm wavelength of 77.1% was 15 sufficiently high to give the granules an acceptably light colour such that they would not impair the white appearance of a detergent composition in which they 0. were incorporated.
C
a
Claims (9)
1. A process for preparing granules for incorporation into a detergent composition, which process comprises the steps of: tumbling together in a rotating pan a finely divided particulate smectite clay and a finely divided particulate z-olite in a weight ratio of from 1:9 to 9:1 whist sufficient water is added slowly to the resultant mixture to bind the particles together to form granules of a mixture of said smectite clay and said zeolite; and drying the resultant granules to reduce the water content to not more than 20% of the total weight of the granules. 10
2. A process according to clai.,r 1 wherein the smectite clay is a entonite clay.
3. A process according to claim 1 or 2 wherein the smectite clay in see its initial, finely divided, particulate form has a particle size distribution such that substantially all of it passes through a No. 60 mesh British .o. Standard sieve (nominal aperture 0.250mm).
4. A process according to any one of claims 1 to 3, wherein the zeolite is zeolite A.
5. A process according to claim 3, wherein the zeolite A has a chemical composition corresponding to the approximate formula:- 1.0±0.2 Na0,. A1 2 0 3 1 SiO02 0-5.1Hz2 and an apparent pore width of approximately 4 Angstrom units.
6. A process according to any preceding claim, wherein the initial, finely divided, particulate zeolite has a particle size distribution of from 1 to 10 microns.
7. A process according to any one of the preceding claims, wherein the water added in step (a) -9- is the sole liquid binder.
8. A process according to any one of the preceding claims, comprising the following further step: sieving the dried granules to yield a product comprising granules having sizes in the range from 0.75mm to
9. A detergent composition including granules prepared by the following process: tumbling together in a rotating pan a finely divided particulate smectite clay and a finely divided particulate zeolite in a weight ratio of from 1:9 to 9:1 whilst sufficient water is added S slowly to the resultant mixture to bind the a 15 particles together to form granules of a mixture eq. so of said smectite clay and said zeolite; and drying the resultant granules to reduce the water content to not morz than 20% of the total weight of the granules. Dated this ninth day of April 1991 ae ECO INTERNATIONAL LIMITED Attorney: ROBERT G. SHELSTON Fellow Institute of Patent Attorneys of Australia of SMITH SHELSTON BEADLE
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB909008462A GB9008462D0 (en) | 1990-04-12 | 1990-04-12 | Granules for detergent compositions |
| GB9008462 | 1990-04-12 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| AU7432591A AU7432591A (en) | 1991-10-17 |
| AU642230B2 true AU642230B2 (en) | 1993-10-14 |
Family
ID=10674431
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU74325/91A Ceased AU642230B2 (en) | 1990-04-12 | 1991-04-10 | Process for preparing granules for detergent compositions |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP0452016A3 (en) |
| JP (1) | JPH04225098A (en) |
| AU (1) | AU642230B2 (en) |
| CA (1) | CA2040050A1 (en) |
| GB (2) | GB9008462D0 (en) |
| NZ (1) | NZ237774A (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4210253A1 (en) * | 1992-03-28 | 1993-09-30 | Hoechst Ag | Cogranulates consisting of aluminosilicates and sodium silicates, a process for their preparation and their use |
| DE4306665A1 (en) * | 1993-03-03 | 1994-09-08 | Sued Chemie Ag | Detergent additive for fabric softening detergents |
| EP0627484A1 (en) * | 1993-06-02 | 1994-12-07 | The Procter & Gamble Company | Coating clay agglomerates with finely divided particulate material |
| GB2297977A (en) * | 1995-02-07 | 1996-08-21 | Procter & Gamble | Detergent composition containing Zeolite MAP |
| CN1402776A (en) * | 1999-11-29 | 2003-03-12 | Iq中央株式会社 | Cleaning composition and method for preparing same |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU549000B2 (en) * | 1981-02-26 | 1986-01-09 | Colgate-Palmolive Pty. Ltd. | Base beads for detergent compositions |
| AU549122B2 (en) * | 1981-02-26 | 1986-01-16 | Colgate-Palmolive Pty. Ltd. | Spray dried base beads and detergent compositions |
| EP0279040A1 (en) * | 1987-01-30 | 1988-08-24 | Degussa Aktiengesellschaft | Builder for washing agents |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0021267B1 (en) * | 1979-06-18 | 1982-06-16 | PQ Corporation | Agglomerated zeolite ion exchanger |
| DE3620009A1 (en) * | 1986-06-13 | 1987-12-17 | Henkel Kgaa | CLEANING AGENTS CONTAINING KOERNIG AGGLOMERED SODIUM METASILICATE, METHOD FOR THE PRODUCTION AND USE THEREOF |
-
1990
- 1990-04-12 GB GB909008462A patent/GB9008462D0/en active Pending
-
1991
- 1991-04-02 GB GB9106793A patent/GB2242909B/en not_active Expired - Fee Related
- 1991-04-02 EP EP19910302852 patent/EP0452016A3/en not_active Withdrawn
- 1991-04-09 CA CA 2040050 patent/CA2040050A1/en not_active Abandoned
- 1991-04-10 NZ NZ23777491A patent/NZ237774A/en unknown
- 1991-04-10 AU AU74325/91A patent/AU642230B2/en not_active Ceased
- 1991-04-12 JP JP7957291A patent/JPH04225098A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU549000B2 (en) * | 1981-02-26 | 1986-01-09 | Colgate-Palmolive Pty. Ltd. | Base beads for detergent compositions |
| AU549122B2 (en) * | 1981-02-26 | 1986-01-16 | Colgate-Palmolive Pty. Ltd. | Spray dried base beads and detergent compositions |
| EP0279040A1 (en) * | 1987-01-30 | 1988-08-24 | Degussa Aktiengesellschaft | Builder for washing agents |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0452016A3 (en) | 1992-03-11 |
| CA2040050A1 (en) | 1991-10-13 |
| GB2242909B (en) | 1993-07-07 |
| GB9008462D0 (en) | 1990-06-13 |
| NZ237774A (en) | 1993-07-27 |
| GB2242909A (en) | 1991-10-16 |
| GB9106793D0 (en) | 1991-05-22 |
| AU7432591A (en) | 1991-10-17 |
| JPH04225098A (en) | 1992-08-14 |
| EP0452016A2 (en) | 1991-10-16 |
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