CA1230796A - Detergent compositions containing a chloroisocyanurate derivative suitable for washing dishes in a washing machine, and the process for their preparation - Google Patents
Detergent compositions containing a chloroisocyanurate derivative suitable for washing dishes in a washing machine, and the process for their preparationInfo
- Publication number
- CA1230796A CA1230796A CA000458375A CA458375A CA1230796A CA 1230796 A CA1230796 A CA 1230796A CA 000458375 A CA000458375 A CA 000458375A CA 458375 A CA458375 A CA 458375A CA 1230796 A CA1230796 A CA 1230796A
- Authority
- CA
- Canada
- Prior art keywords
- washing
- acid
- agent
- coated
- chloroisocyanurate
- 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.)
- Expired
Links
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
- C11D3/395—Bleaching agents
- C11D3/3958—Bleaching agents combined with phosphates
-
- 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
- C11D17/0039—Coated compositions or coated components in the compositions, (micro)capsules
-
- 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
- C11D3/18—Hydrocarbons
-
- 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
- C11D3/395—Bleaching agents
- C11D3/3955—Organic bleaching agents
Abstract
ABSTRACT
Detergent compositions containing a chloroiso-cyanurate derivative suitable for washing dishes in a washing machine, and the process for their preparation.
The chloroisocyanurate derivative employed is trichloroisocyanuric acid coated with the aid of a paraffin at a concentration of 1 to 10% by weight of the acid.
Application to washing dishes in a washing machine.
Detergent compositions containing a chloroiso-cyanurate derivative suitable for washing dishes in a washing machine, and the process for their preparation.
The chloroisocyanurate derivative employed is trichloroisocyanuric acid coated with the aid of a paraffin at a concentration of 1 to 10% by weight of the acid.
Application to washing dishes in a washing machine.
Description
1'~3~79~
The present invention relates to new detergent compositions suitable for washing dishes in a washing machine, and a process for preparing themu The washing of dishes in a machine invoives both the detergent action of the ~ashing agent and the mechani-cal action of water. Apart from its detergent action, the washing agent must also have a disinfectant capacity and water-softening properties. The washing agent must therefore possess strong detergence but also its composi-tion must be such that it does not cause the formationof foams ~hich are harmful to the mechanical action of water. This is why the ~ashing agent compositions consist in a known manner of:
- a softening agent, generally chosen from the class of polyphosphates. (Among the polyphosphtes used, mention can be made of sodium tripolyphosphate, sodium hexametaphosphate and sodium pyrophosphate, as well as the corresponding potassium polyphosphates);
- an alkalinity-producing agent mainly consist-ing of a sodium metasilicate in its anhydrous form or inits pentahydrate form. ~In a known manner sodium silicate may be partly replaced by sodium carbonate, sodium sul-phate, or sodium hydroxide);
- a non-foaming surface-active agent of the non-ZS ionic type, chosen from the following classes of products:ethoxylated linear alcohols, condensate of ethylene oxide ~3~ ?~36 ~ith propylene oxide, alkoxy amines, polyethoxyethers of fatty alcohols, ethoxylated alkylphenols, or phosphor;c esters of fatty alcohols. (Preferably, for reasons of effectiveness, biodegradabil;ty and cost, a surfase-active agent is chosen from the class of ethoxylated linear alco-hols); and - a disinfectant.
The disinfectant used, which releases active chlorine, is generally a sol;d chlorine-based product of the chloroisocyanurate derivative eype~ This is most fre-quently a sod;um or potassium salt of dichloroisocyanuric acid.
Until the present time, the following were used in practice: anhydrous sodium dichloroisocyanurate titrating at 63X of active chlorine, a sodium dichloroisocyanurate dihydrate titrating at 56X of active chlorine, anhydrous potassium dichloroisocyanurate titrating at 59X of active chlorine, potassium dichloroisocyanurate monohydrate tit-rating at 56X of active chlorine or calcium dichloroiso-cyanurate tetrahydrate titrating at 56X of active chlorine.The active chlorine is defined as being the oxidising capacity due to the positive chlorine. To understand better to what pos~tive chLorine corresponds it should be recalLed that chlorine present in the chlorinated deri-vatives described above is bound to a nitrogen atom andis present therein in the oxidation state + 1, that is to say Cl+ During the oxidation-reduction process a Cl+
ion combines with two electrons to be converted into the ~;~3~79~
Cl (chloride) state. Two equivalents of an oxidising agent are released, which correspond to 71 9 of elementary chlorine although the atomic weight is only 35.5. This also means that an atom of Cl+ has the same oxidising capacity as a molecule of elementary chlor;ne Cl2.
Amongst the other chlorinated disinfectants of the chloroisocyanurate family, there is one which titrates at approximately 91X of active chlorine: trichloroisocyanuric acid. It would therefore be advantageous to be able to use it, given its high percentage of active chlorine. Unfor-tunately, until the present time it could not be used, as ;t was too reactive towards the other components of the washing agent compositions, in particular towards the surface-active agents. ~ashing agents containing trichloroisocyanuric acid are unstable in storage and they lose significant quantities both of chlorine and of surface-active agents through mutual destruction.
A means of stabilising trichloroisocyanuric acid has now been found, in particular of stabilising it for manufacturing washing agent composit;ons which are stable in storage and suitable for washing dishes in a washing machine.
~ he present invention relates to a new stable wash-ing agent composition suitable for washing dishes in a washing machine, containing a softening agent chosen from the polyphosphates, an alkalinity-producing agent chosen from the sodium silicates, a nonionic surface-active agent and a chloroisocyanurate derivative, characterised in that 1~30~7~6 the chloro;socyanurate der;vat;ve used is trichloroiso-cyanuric acid coated with the aid of a paraffin wax employed in a concentration of 1 to 10% by weight relative to the weight of the acid.
It has been found that paraffin waxes were com-patible with tr;chloroisocyanuric ecid. Moreover, when used in relatively small amounts, they make it possible to produce good stabilisation of the acid. Furthermore, they are dispersible under the washing conditions, that it to say in aqueous media at a temperature of 50 to 60C.
The paraffin waxes consist of a mixture of solid hydrocarbons with a high molecular weight (for example C36H74) which have a melting point below 60C and above 40C, and a viscosity at 100C below 6 centipoises.
They are employed in a concentration of 1 to 10X by weight relative to the trichloro;socyanuric acid, preferably in a concentration of 3 to 5X by weight. Above 5X diffirulties appear in carrying out the coating and it is necessary to modify the conditions in order to obtain a suitable coating.
The use of quantities greater than 10X does not produce an appreciable improvement in the storage stability of the washing agent compositions. The use of quantities below 1%
results in too poor a stabilisation of the ac~d.
The wash;ng agent composltions which are the sub-Z5 ject of the invention are manufactured by first carryingout the coatlng of the trichloroisocyanuric acid with the aid of paraffin waxes. This coating is carried out in any kind of industrial mixer, such as a drum mixer, preferably ~i ~3~7~3~ 5 _ a mixer fitted with a heating device. It is also possible to employ a rotary mixer of the concrete-mixer type in which the molten wax is sprayed on the acid heated to a temperature in the region of 50C. The temperature of use permits good distribution of the paraffin waxes, which solidify on cooling.
The wax-coated trichloroisocyanuric acid is then mixed in another mixer with the other components of the washing agent.
The quantities of the various components other than the paraffin employed for the manufacture of the new washing agent compositions which are the subject of the invention are employed in conventional weight ratios. The softening agent chosen from the polyphosphates is employed in a concentration of 25 to 60% by weight and preferably 40 to 50% by weight relative to the weight of the composition.
The alkalinity-producing agent chosen from the sodium silicates is employed in a concentration of 30 to 70%
by weight and preferably 40 to 60% by weight relative to the weight of the composition. In a known manner, sodium silicate may be partly replaced with sodium carbonate, sodium sulphate or sodium hydroxide. The nonionic surface-active agent is employed in a concentration of 0.5 to 4% by weight and preferably in a concentration of 1 to 3~ by weight relative to the weight of the composition. Th~ trichloro-isocyanuric acid coatecl with the aid of paraf~in waxes is employed in a concentration of 0.5 to 5~ by weight and preferably 1 to 3% by weight relative to the weight of the composition.
'`'"`' 1~3~'7~
The following examples illustrate the present invention.
Trichloroisocyanuric acid is f;rst stabil;sed w;th the aid of paraffin ~axes ;n the follo~;ng manner:
The acid ;s heated to a temperature of 50C
and is then placed ;n a pill-coater. Wh;le the coater rotates, paraff;n waxes are sprayed from above by means of a spray-gun. The temperature of use perm;ts a good distr;but;on of the waxes, wh;ch sol;d;fy on cool-;ng. The paraffin waxes employed have a melt;ng point below 60C and a viscosity at 100C of less than 6 cent;stokes. Var;ous m;xtures of ac;d and ~axes are produced by us;ng vary;ng percentages of paraff;n waxes.
The m;xtures obta;ned in th;s ~ay are employed for the manufacture of wash;ng agent composit;ons.
Wash;ng agents hav;ng the follow;ng compos;t;on are prepared (parts are expressed in parts by we;ght):
- sodium tr;polyphosphate: 5û parts, - sodium metas;l;cate (anhydrous or 5H20 hydrate):
50 parts, - PLURAFAC RA 43 ~ethoxylated nonion;c surface-active agent manufactured by the company PCUK): 2 parts, - trlchloroisocyanur~c ac~d coated with paraff;n waxes: 2 parts.
A prem;x of sod;um tripolyphosphate and non;on;c sur-face-active agent is first made in a mixer of a rotary type.
A homogeneous mixture is obtained after 20 m;nutes. The metas;l;cate is then added to the m;xer. After 20 min-~ra~e ~1~rl~
utes the coated trichloroisocyanuric acid is added. The whole composition is then le~t in the rotating mixer for 20 minutes. The percentage of chlorine determined by iodometry in the washing agent composition is then 1.65~.
The washing agent composition prepared in this way is placed in plastic bags closed with a non-hermetic closure. The bags are stored in a controlled environment oven under the following conditions:
- temperature: 40C.
- relative humidity: 80~.
Samples are withdrawn after a storage period of between 1 and 3 months and the residual chlorine is deter-mined by iodometry. Table 1 shows the results obtained after 50 days' storage for washing agent compositions prepared from anhydrous sodium metasilicate and from trichloroisocyanuric acid coated with the aid of paraffin waxes employed in various percentages (by weight). The results relating to the remaining chlorine are expressed as percentages relative to the original chlorine.
~3~'~9~i TA~LE 1 TRICHLOROISO- Wash;ng agent CYANURIC ACID composit;on 7. of remaining chlorine Not coated with paraffin ~axes 39 Coated with 5X
of paraffin waxes having a melting point of 50-52C 81 Coated with 5X
of paraff;n waxes having a melting point of 40-42C 78 Coated with 5X
of paraffin waxes having a melting point of 58-60~C 68.5 EXAMPLE Z
Example 1 is repeated but using sodium meta-silicate pentahydrate, instead of the anhydrous meta-silicate as ~n Example 1, for the preparation of the washing agent compositions. Table ~ collates the results obta~ned.
, ~L~2~ 6 Trichloroiso- Washing agent cyanuric acid composit;on % of remaining chlorine Not coated with paraffin waxes 14 Coated with SX
of paraff;n waxes having a melting point of 50-52C 38.5 Coated with 5X
of paraffin waxes hav;ng a melting po;nt of 40-42C 26.5 Coated with 5X
of paraffin waxes having a melting point of 58-60C 30 Examples 1 and 2 are repeated using paraffin waxes having a melting point of 40-42C. Samples are withdrawn after a storage period of 80 days. 'Table 3 shows the results obtained for washing agent compositions prepared either from anhydrous sodium metasilicate or from sodium metasilicate pentahydrate.
~3~
X of remaining chlorine Tr;chloroiso- Washing agent prepared Washing agent cyanuric acid from anhydrous sodium prepared from metasilicate sodium meta-sil;cate pentahydrate Uncoated acid 20 10 Acid coated with 1% of waxes 30 15 Acid coated with
The present invention relates to new detergent compositions suitable for washing dishes in a washing machine, and a process for preparing themu The washing of dishes in a machine invoives both the detergent action of the ~ashing agent and the mechani-cal action of water. Apart from its detergent action, the washing agent must also have a disinfectant capacity and water-softening properties. The washing agent must therefore possess strong detergence but also its composi-tion must be such that it does not cause the formationof foams ~hich are harmful to the mechanical action of water. This is why the ~ashing agent compositions consist in a known manner of:
- a softening agent, generally chosen from the class of polyphosphates. (Among the polyphosphtes used, mention can be made of sodium tripolyphosphate, sodium hexametaphosphate and sodium pyrophosphate, as well as the corresponding potassium polyphosphates);
- an alkalinity-producing agent mainly consist-ing of a sodium metasilicate in its anhydrous form or inits pentahydrate form. ~In a known manner sodium silicate may be partly replaced by sodium carbonate, sodium sul-phate, or sodium hydroxide);
- a non-foaming surface-active agent of the non-ZS ionic type, chosen from the following classes of products:ethoxylated linear alcohols, condensate of ethylene oxide ~3~ ?~36 ~ith propylene oxide, alkoxy amines, polyethoxyethers of fatty alcohols, ethoxylated alkylphenols, or phosphor;c esters of fatty alcohols. (Preferably, for reasons of effectiveness, biodegradabil;ty and cost, a surfase-active agent is chosen from the class of ethoxylated linear alco-hols); and - a disinfectant.
The disinfectant used, which releases active chlorine, is generally a sol;d chlorine-based product of the chloroisocyanurate derivative eype~ This is most fre-quently a sod;um or potassium salt of dichloroisocyanuric acid.
Until the present time, the following were used in practice: anhydrous sodium dichloroisocyanurate titrating at 63X of active chlorine, a sodium dichloroisocyanurate dihydrate titrating at 56X of active chlorine, anhydrous potassium dichloroisocyanurate titrating at 59X of active chlorine, potassium dichloroisocyanurate monohydrate tit-rating at 56X of active chlorine or calcium dichloroiso-cyanurate tetrahydrate titrating at 56X of active chlorine.The active chlorine is defined as being the oxidising capacity due to the positive chlorine. To understand better to what pos~tive chLorine corresponds it should be recalLed that chlorine present in the chlorinated deri-vatives described above is bound to a nitrogen atom andis present therein in the oxidation state + 1, that is to say Cl+ During the oxidation-reduction process a Cl+
ion combines with two electrons to be converted into the ~;~3~79~
Cl (chloride) state. Two equivalents of an oxidising agent are released, which correspond to 71 9 of elementary chlorine although the atomic weight is only 35.5. This also means that an atom of Cl+ has the same oxidising capacity as a molecule of elementary chlor;ne Cl2.
Amongst the other chlorinated disinfectants of the chloroisocyanurate family, there is one which titrates at approximately 91X of active chlorine: trichloroisocyanuric acid. It would therefore be advantageous to be able to use it, given its high percentage of active chlorine. Unfor-tunately, until the present time it could not be used, as ;t was too reactive towards the other components of the washing agent compositions, in particular towards the surface-active agents. ~ashing agents containing trichloroisocyanuric acid are unstable in storage and they lose significant quantities both of chlorine and of surface-active agents through mutual destruction.
A means of stabilising trichloroisocyanuric acid has now been found, in particular of stabilising it for manufacturing washing agent composit;ons which are stable in storage and suitable for washing dishes in a washing machine.
~ he present invention relates to a new stable wash-ing agent composition suitable for washing dishes in a washing machine, containing a softening agent chosen from the polyphosphates, an alkalinity-producing agent chosen from the sodium silicates, a nonionic surface-active agent and a chloroisocyanurate derivative, characterised in that 1~30~7~6 the chloro;socyanurate der;vat;ve used is trichloroiso-cyanuric acid coated with the aid of a paraffin wax employed in a concentration of 1 to 10% by weight relative to the weight of the acid.
It has been found that paraffin waxes were com-patible with tr;chloroisocyanuric ecid. Moreover, when used in relatively small amounts, they make it possible to produce good stabilisation of the acid. Furthermore, they are dispersible under the washing conditions, that it to say in aqueous media at a temperature of 50 to 60C.
The paraffin waxes consist of a mixture of solid hydrocarbons with a high molecular weight (for example C36H74) which have a melting point below 60C and above 40C, and a viscosity at 100C below 6 centipoises.
They are employed in a concentration of 1 to 10X by weight relative to the trichloro;socyanuric acid, preferably in a concentration of 3 to 5X by weight. Above 5X diffirulties appear in carrying out the coating and it is necessary to modify the conditions in order to obtain a suitable coating.
The use of quantities greater than 10X does not produce an appreciable improvement in the storage stability of the washing agent compositions. The use of quantities below 1%
results in too poor a stabilisation of the ac~d.
The wash;ng agent composltions which are the sub-Z5 ject of the invention are manufactured by first carryingout the coatlng of the trichloroisocyanuric acid with the aid of paraffin waxes. This coating is carried out in any kind of industrial mixer, such as a drum mixer, preferably ~i ~3~7~3~ 5 _ a mixer fitted with a heating device. It is also possible to employ a rotary mixer of the concrete-mixer type in which the molten wax is sprayed on the acid heated to a temperature in the region of 50C. The temperature of use permits good distribution of the paraffin waxes, which solidify on cooling.
The wax-coated trichloroisocyanuric acid is then mixed in another mixer with the other components of the washing agent.
The quantities of the various components other than the paraffin employed for the manufacture of the new washing agent compositions which are the subject of the invention are employed in conventional weight ratios. The softening agent chosen from the polyphosphates is employed in a concentration of 25 to 60% by weight and preferably 40 to 50% by weight relative to the weight of the composition.
The alkalinity-producing agent chosen from the sodium silicates is employed in a concentration of 30 to 70%
by weight and preferably 40 to 60% by weight relative to the weight of the composition. In a known manner, sodium silicate may be partly replaced with sodium carbonate, sodium sulphate or sodium hydroxide. The nonionic surface-active agent is employed in a concentration of 0.5 to 4% by weight and preferably in a concentration of 1 to 3~ by weight relative to the weight of the composition. Th~ trichloro-isocyanuric acid coatecl with the aid of paraf~in waxes is employed in a concentration of 0.5 to 5~ by weight and preferably 1 to 3% by weight relative to the weight of the composition.
'`'"`' 1~3~'7~
The following examples illustrate the present invention.
Trichloroisocyanuric acid is f;rst stabil;sed w;th the aid of paraffin ~axes ;n the follo~;ng manner:
The acid ;s heated to a temperature of 50C
and is then placed ;n a pill-coater. Wh;le the coater rotates, paraff;n waxes are sprayed from above by means of a spray-gun. The temperature of use perm;ts a good distr;but;on of the waxes, wh;ch sol;d;fy on cool-;ng. The paraffin waxes employed have a melt;ng point below 60C and a viscosity at 100C of less than 6 cent;stokes. Var;ous m;xtures of ac;d and ~axes are produced by us;ng vary;ng percentages of paraff;n waxes.
The m;xtures obta;ned in th;s ~ay are employed for the manufacture of wash;ng agent composit;ons.
Wash;ng agents hav;ng the follow;ng compos;t;on are prepared (parts are expressed in parts by we;ght):
- sodium tr;polyphosphate: 5û parts, - sodium metas;l;cate (anhydrous or 5H20 hydrate):
50 parts, - PLURAFAC RA 43 ~ethoxylated nonion;c surface-active agent manufactured by the company PCUK): 2 parts, - trlchloroisocyanur~c ac~d coated with paraff;n waxes: 2 parts.
A prem;x of sod;um tripolyphosphate and non;on;c sur-face-active agent is first made in a mixer of a rotary type.
A homogeneous mixture is obtained after 20 m;nutes. The metas;l;cate is then added to the m;xer. After 20 min-~ra~e ~1~rl~
utes the coated trichloroisocyanuric acid is added. The whole composition is then le~t in the rotating mixer for 20 minutes. The percentage of chlorine determined by iodometry in the washing agent composition is then 1.65~.
The washing agent composition prepared in this way is placed in plastic bags closed with a non-hermetic closure. The bags are stored in a controlled environment oven under the following conditions:
- temperature: 40C.
- relative humidity: 80~.
Samples are withdrawn after a storage period of between 1 and 3 months and the residual chlorine is deter-mined by iodometry. Table 1 shows the results obtained after 50 days' storage for washing agent compositions prepared from anhydrous sodium metasilicate and from trichloroisocyanuric acid coated with the aid of paraffin waxes employed in various percentages (by weight). The results relating to the remaining chlorine are expressed as percentages relative to the original chlorine.
~3~'~9~i TA~LE 1 TRICHLOROISO- Wash;ng agent CYANURIC ACID composit;on 7. of remaining chlorine Not coated with paraffin ~axes 39 Coated with 5X
of paraffin waxes having a melting point of 50-52C 81 Coated with 5X
of paraff;n waxes having a melting point of 40-42C 78 Coated with 5X
of paraffin waxes having a melting point of 58-60~C 68.5 EXAMPLE Z
Example 1 is repeated but using sodium meta-silicate pentahydrate, instead of the anhydrous meta-silicate as ~n Example 1, for the preparation of the washing agent compositions. Table ~ collates the results obta~ned.
, ~L~2~ 6 Trichloroiso- Washing agent cyanuric acid composit;on % of remaining chlorine Not coated with paraffin waxes 14 Coated with SX
of paraff;n waxes having a melting point of 50-52C 38.5 Coated with 5X
of paraffin waxes hav;ng a melting po;nt of 40-42C 26.5 Coated with 5X
of paraffin waxes having a melting point of 58-60C 30 Examples 1 and 2 are repeated using paraffin waxes having a melting point of 40-42C. Samples are withdrawn after a storage period of 80 days. 'Table 3 shows the results obtained for washing agent compositions prepared either from anhydrous sodium metasilicate or from sodium metasilicate pentahydrate.
~3~
X of remaining chlorine Tr;chloroiso- Washing agent prepared Washing agent cyanuric acid from anhydrous sodium prepared from metasilicate sodium meta-sil;cate pentahydrate Uncoated acid 20 10 Acid coated with 1% of waxes 30 15 Acid coated with
2% of waxes 60 25 Ac;d coated with 5X of waxes 78 26.5 Acid coated with 10% of waxes 78 27
Claims (5)
- THE EMBODIMENTS OF THE INVENTION IN WHICH AN EXCLUSIVE
PROPERTY OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
l. New detergent compositions containing a chloroiso-cyanurate derivative suitable for washing dishes in a washing machine and also containing a softening agent chosen from the polyphosphates, an alkalinity-producing agent consisting at least partially of sodium silicates and a surface-active agent, characterised in that the chloroisocyanurate derivative employed is trichloroisocyanuric acid coated with the aid of a paraffin wax having a melting point below 60° and used in a concentration of 1 to 10% by weight of the acid. - 2. New compositions according to Claim 1, characterised in that the quantity of paraffin wax employed is 3 to 5% by weight relative to the acid.
- 3. Process for preparing new compositions according to Claim 1, characterized in that the trichloroisocyanuric acid is coated with the aid of paraffin wax before being mixed with the other components of the washing agent.
- 4. Process for preparing new compositions according to Claim 2, characterized in that the trichloroisocyanuric acid is coated with the aid of paraffin wax before being mixed with the other components of the washing agent.
- 5. Preparation process according to Claim 3 or 4, charac-terised in that the molten wax is sprayed on the trichloro-isocyanuric acid heated at 50°C.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8311427A FR2548684B1 (en) | 1983-07-08 | 1983-07-08 | DETERGENT COMPOSITIONS CONTAINING A CHLOROISOCYANURIC DERIVATIVE SUITABLE FOR WASHING DISHWASHER IN A WASHING MACHINE AND THEIR PREPARATION METHOD |
| FR8311427 | 1983-07-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1230796A true CA1230796A (en) | 1987-12-29 |
Family
ID=9290659
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000458375A Expired CA1230796A (en) | 1983-07-08 | 1984-07-06 | Detergent compositions containing a chloroisocyanurate derivative suitable for washing dishes in a washing machine, and the process for their preparation |
Country Status (16)
| Country | Link |
|---|---|
| JP (1) | JPS6036599A (en) |
| BE (1) | BE900109A (en) |
| BR (1) | BR8403373A (en) |
| CA (1) | CA1230796A (en) |
| CH (1) | CH660024A5 (en) |
| DE (1) | DE3424764A1 (en) |
| DK (1) | DK164288C (en) |
| ES (1) | ES534087A0 (en) |
| FR (1) | FR2548684B1 (en) |
| GB (1) | GB2143251B (en) |
| IT (1) | IT1177864B (en) |
| LU (1) | LU85433A1 (en) |
| NL (1) | NL8402153A (en) |
| NO (1) | NO842757L (en) |
| SE (1) | SE8403600L (en) |
| ZA (1) | ZA845007B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE69031824T2 (en) * | 1989-11-15 | 1998-04-30 | Unilever Nv | Bleach particles encapsulated with wax and manufacturing process |
| US5776874A (en) * | 1993-01-18 | 1998-07-07 | The Procter & Gamble Company | Anti-tarnishing machine dishwashing detergent compositions containing a paraffin oil |
| EP0679177A1 (en) * | 1993-01-18 | 1995-11-02 | The Procter & Gamble Company | Detergent compositions |
| EP0679178A1 (en) * | 1993-01-18 | 1995-11-02 | The Procter & Gamble Company | Machine dishwashing detergent compositions |
| ATE204016T1 (en) * | 1993-07-01 | 2001-08-15 | Procter & Gamble | MACHINE DISHWASHER CONTAINING AN OXYGEN BLEACH, PARAFFIN OIL AND BENZOTRIAZOLE COMPOUNDS AS A SILVER TARNISHING INHIBITOR |
| EP0634478B1 (en) * | 1993-07-16 | 2000-05-17 | The Procter & Gamble Company | Machine dishwashing detergent compositions |
| KR100892551B1 (en) | 2006-02-15 | 2009-04-09 | 신명곤 | The method of preparing for microencapsulated acids to control of the carbon dioxide release and the pH values in model packs |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB911410A (en) * | 1958-08-18 | 1962-11-28 | Procter & Gamble Ltd | Detergent compositions |
| GB1044314A (en) * | 1963-12-24 | 1966-09-28 | Unilever Ltd | Abrasive compositions |
| FR1472680A (en) * | 1965-03-30 | 1967-03-10 | Fmc Corp | Detergent for dishwashing machines based on chlorinated isocyanurates |
| GB1395010A (en) * | 1971-05-28 | 1975-05-21 | Unilever Ltd | Coated alkaline earth metal hypochorites |
| GB1509797A (en) * | 1975-04-24 | 1978-05-04 | Unilever Ltd | Encapsulation process |
| US4327151A (en) * | 1976-08-25 | 1982-04-27 | Lever Brothers Company | Encapsulated bleaches and methods for their preparation |
| US4078099A (en) * | 1976-08-25 | 1978-03-07 | Lever Brothers Company | Encapsulated bleaches and methods for their preparation |
| DE3070906D1 (en) * | 1980-12-11 | 1985-08-29 | Eka Ab | Detergent compositions stable to chlorine separation, and agents for producing same |
| US4460490A (en) * | 1980-12-18 | 1984-07-17 | Jeyes Group Limited | Lavatory cleansing blocks |
-
1983
- 1983-07-08 FR FR8311427A patent/FR2548684B1/en not_active Expired
-
1984
- 1984-06-27 LU LU85433A patent/LU85433A1/en unknown
- 1984-06-29 ZA ZA845007A patent/ZA845007B/en unknown
- 1984-07-04 IT IT48493/84A patent/IT1177864B/en active
- 1984-07-05 DE DE19843424764 patent/DE3424764A1/en not_active Ceased
- 1984-07-06 JP JP59139204A patent/JPS6036599A/en active Pending
- 1984-07-06 NO NO842757A patent/NO842757L/en unknown
- 1984-07-06 CH CH3294/84A patent/CH660024A5/en not_active IP Right Cessation
- 1984-07-06 CA CA000458375A patent/CA1230796A/en not_active Expired
- 1984-07-06 DK DK332384A patent/DK164288C/en active
- 1984-07-06 ES ES534087A patent/ES534087A0/en active Granted
- 1984-07-06 SE SE8403600A patent/SE8403600L/en unknown
- 1984-07-06 BE BE0/213296A patent/BE900109A/en not_active IP Right Cessation
- 1984-07-06 NL NL8402153A patent/NL8402153A/en not_active Application Discontinuation
- 1984-07-06 BR BR8403373A patent/BR8403373A/en not_active IP Right Cessation
- 1984-07-09 GB GB08417503A patent/GB2143251B/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| BE900109A (en) | 1985-01-07 |
| NO842757L (en) | 1985-01-09 |
| IT1177864B (en) | 1987-08-26 |
| SE8403600L (en) | 1985-01-09 |
| SE8403600D0 (en) | 1984-07-06 |
| GB2143251B (en) | 1987-08-05 |
| CH660024A5 (en) | 1987-03-13 |
| DK164288C (en) | 1992-12-28 |
| NL8402153A (en) | 1985-02-01 |
| GB2143251A (en) | 1985-02-06 |
| IT8448493A0 (en) | 1984-07-04 |
| ES8603724A1 (en) | 1986-01-01 |
| FR2548684B1 (en) | 1986-08-22 |
| LU85433A1 (en) | 1984-11-30 |
| DE3424764A1 (en) | 1985-01-17 |
| GB8417503D0 (en) | 1984-08-15 |
| JPS6036599A (en) | 1985-02-25 |
| DK164288B (en) | 1992-06-01 |
| FR2548684A1 (en) | 1985-01-11 |
| ZA845007B (en) | 1985-10-30 |
| BR8403373A (en) | 1985-06-18 |
| ES534087A0 (en) | 1986-01-01 |
| DK332384A (en) | 1985-01-09 |
| DK332384D0 (en) | 1984-07-06 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |