CA2522638A1 - Water sensitive indicators as a safety floor device and use thereof - Google Patents
Water sensitive indicators as a safety floor device and use thereof Download PDFInfo
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- CA2522638A1 CA2522638A1 CA 2522638 CA2522638A CA2522638A1 CA 2522638 A1 CA2522638 A1 CA 2522638A1 CA 2522638 CA2522638 CA 2522638 CA 2522638 A CA2522638 A CA 2522638A CA 2522638 A1 CA2522638 A1 CA 2522638A1
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Abstract
The invention relates to a floor finish or alike matrix intended to coalesce and produce a safety device with sufficient amount of alkaline agents and selected sensors optimized and stabilized in such a way to form a clear film after drying on a substrate, especially a substrate selected from the group comprising vinyl, concrete, wood or the like surface; said clear film having good physical properties on the floor but becomes rapidly coloured by contact with water, said coloration being intended to be a warning signal to prevent any dangerous or costly falls. The invention also relates to the use of said floor finish as a warning device for the presence of water on a floor.
The invention relates to floor finish products used to restore the floor shiny appearance, restore the protection of the flooring and restore the safety feature of the finish.
The invention relates to floor finish products used to restore the floor shiny appearance, restore the protection of the flooring and restore the safety feature of the finish.
Description
WATER SENSITIVE INDICATORS AS A SAFETY
FLOOR DEVICE AND USE THEREOF
Field of the invention The invention relates to a formulation and optimisation of floor care products inducing a specific chemical reaction with water to produce intensive instant coloration. Such color appearance on wet area is intended as a warning system to avoid dangerous and costly falls.
Description of the prior art It is known in the art to use sensors (US patent no. 5 482 654 - Luttrell et al) in cleaning solutions to provide the user with highly coloured liquid which reverts to colorless state when the liquid has evaporated. As floor cleaning operation is most of the time performed after regular hours this safety device is almost restricted to cleaning staff. It is known from prior art (US patents nos. 4 and 4 071 645 - Kahn) that similarly to Luttrell et al., not only cleaning operation but stripping work is now made safer for workers. To Applicants' knowledge, there is actually no efficient way to detect the presence of water (other than from formulated products) being a wet spot and to avoid dangerous and costly falls. In fact during normal business hours, water from melting snow, a leaking pipe or from any other sources is not detected. Therefore, there is a need for a water detection system being much more universal than cleaning solutions.
A floor finish is design to prevent dangerous falls. It is a well-known fact that the presence of water over the floor finish does seriously lower the anti-slip properties of the finish. It is therefore very useful to develop a preventive system that would automatically warn people of the presence of wet, slippery areas on a floor.
When put into contact with a floor finish of an appropriate chemical and physical composition, water will dissolve a small amount of the content of the finish. If the dissolved content of the finish containing different chemicals which can react together to induce the appearing of a visible color, the water covered area becomes visible and will attract the attention of people responsible for maintaining the floor, and of people walking on this floor. The people will then take care of mopping up this water or will avoid walking over the wet floor avoiding therefore dangerous situations.
The Applicant has now discovered that incorporation of sensors, preferably stabilized sensors and appropriate amounts of specific reagents in floor finish, spray buffing and other similar waxing matrices intended to form a protective film or coat will produce intensive coloration simply by water contact.
According to a particularly preferred embodiment of the invention, it was found that an initial specific alkaline pH range for floor finish is particularly efficient to reactivate sensor once the product is coalesced on the floor. Accordingly, it is now possible to formulate a water sensitive protective film producing intensive color reaction even with a small amount of water.
The present invention relates to the formulation and optimization of floor care products able to indicate the presence of slippery water on the floor. This indication is obtained by the production of intensive color over the wet areas.
The appearance of these colors being the results of the dissolution into the water of coloring agents present in the floor finish or it can be the results of chemical reactions between chemicals present in the floor finish and being dissolved in the water covering the floor.
Summary of the invention According to a first preferred embodiment, the invention relates to a floor finish or alike matrix forming a clear coat on a substrate and obtained from the drying and curing of a composition of the type comprising:
(a) at least one agent to form a coat when applied onto a substrate;
(b) a volatile excipient comprising water and in which the above and all other ingredients of the composition are dispersed or dissolved;
1 (c) at least one sensor that can change color when contacted by a revealing agent; and 1 (d) at least one compound that can release said revealing agent when in the presence of water;
- the reaction of said sensor with said revealing agent being reversible and the reaction of said compound with water to release said revealing agent being reversible;
- said sensor and compound being dispersed in the obtained dried and cured floor finish or alike matrix;
- said sensor turning colored when the dried and cured coat is in contact with water to thus color the coat, said water releasing said revealing agent which reacts with said sensor;
FLOOR DEVICE AND USE THEREOF
Field of the invention The invention relates to a formulation and optimisation of floor care products inducing a specific chemical reaction with water to produce intensive instant coloration. Such color appearance on wet area is intended as a warning system to avoid dangerous and costly falls.
Description of the prior art It is known in the art to use sensors (US patent no. 5 482 654 - Luttrell et al) in cleaning solutions to provide the user with highly coloured liquid which reverts to colorless state when the liquid has evaporated. As floor cleaning operation is most of the time performed after regular hours this safety device is almost restricted to cleaning staff. It is known from prior art (US patents nos. 4 and 4 071 645 - Kahn) that similarly to Luttrell et al., not only cleaning operation but stripping work is now made safer for workers. To Applicants' knowledge, there is actually no efficient way to detect the presence of water (other than from formulated products) being a wet spot and to avoid dangerous and costly falls. In fact during normal business hours, water from melting snow, a leaking pipe or from any other sources is not detected. Therefore, there is a need for a water detection system being much more universal than cleaning solutions.
A floor finish is design to prevent dangerous falls. It is a well-known fact that the presence of water over the floor finish does seriously lower the anti-slip properties of the finish. It is therefore very useful to develop a preventive system that would automatically warn people of the presence of wet, slippery areas on a floor.
When put into contact with a floor finish of an appropriate chemical and physical composition, water will dissolve a small amount of the content of the finish. If the dissolved content of the finish containing different chemicals which can react together to induce the appearing of a visible color, the water covered area becomes visible and will attract the attention of people responsible for maintaining the floor, and of people walking on this floor. The people will then take care of mopping up this water or will avoid walking over the wet floor avoiding therefore dangerous situations.
The Applicant has now discovered that incorporation of sensors, preferably stabilized sensors and appropriate amounts of specific reagents in floor finish, spray buffing and other similar waxing matrices intended to form a protective film or coat will produce intensive coloration simply by water contact.
According to a particularly preferred embodiment of the invention, it was found that an initial specific alkaline pH range for floor finish is particularly efficient to reactivate sensor once the product is coalesced on the floor. Accordingly, it is now possible to formulate a water sensitive protective film producing intensive color reaction even with a small amount of water.
The present invention relates to the formulation and optimization of floor care products able to indicate the presence of slippery water on the floor. This indication is obtained by the production of intensive color over the wet areas.
The appearance of these colors being the results of the dissolution into the water of coloring agents present in the floor finish or it can be the results of chemical reactions between chemicals present in the floor finish and being dissolved in the water covering the floor.
Summary of the invention According to a first preferred embodiment, the invention relates to a floor finish or alike matrix forming a clear coat on a substrate and obtained from the drying and curing of a composition of the type comprising:
(a) at least one agent to form a coat when applied onto a substrate;
(b) a volatile excipient comprising water and in which the above and all other ingredients of the composition are dispersed or dissolved;
1 (c) at least one sensor that can change color when contacted by a revealing agent; and 1 (d) at least one compound that can release said revealing agent when in the presence of water;
- the reaction of said sensor with said revealing agent being reversible and the reaction of said compound with water to release said revealing agent being reversible;
- said sensor and compound being dispersed in the obtained dried and cured floor finish or alike matrix;
- said sensor turning colored when the dried and cured coat is in contact with water to thus color the coat, said water releasing said revealing agent which reacts with said sensor;
- said sensor turning clear when water dried up from the coat, said sensor and compound returning to their initial state to thus define a reversible visual warning signal when there is water on the floor finish or alike matrix.
According to a second preferred embodiment, the invention relates to a method for installing or restoring a visual warning of the presence of water on a floor finish or alike matrix, wherein a composition comprising:
(a) at least one agent to form a coat when applied onto a substrate;
1 (b) a volatile excipient comprising water and in which the above and all other ingredients of the composition are dispersed or dissolved;
1 (c) at least one sensor that can change color when contacted by a revealing agent; and 1 (d) at least one compound that can release said revealing agent when in the presence of water;
the reaction of said sensor with said revealing agent being reversible and the reaction of said compound with water to release said revealing agent being reversible; is applied on a substrate and allowed to dry and cure to form a coat where said sensor and compound are being dispersed in the obtained dried and cured floor finish or alike matrix;
According to a second preferred embodiment, the invention relates to a method for installing or restoring a visual warning of the presence of water on a floor finish or alike matrix, wherein a composition comprising:
(a) at least one agent to form a coat when applied onto a substrate;
1 (b) a volatile excipient comprising water and in which the above and all other ingredients of the composition are dispersed or dissolved;
1 (c) at least one sensor that can change color when contacted by a revealing agent; and 1 (d) at least one compound that can release said revealing agent when in the presence of water;
the reaction of said sensor with said revealing agent being reversible and the reaction of said compound with water to release said revealing agent being reversible; is applied on a substrate and allowed to dry and cure to form a coat where said sensor and compound are being dispersed in the obtained dried and cured floor finish or alike matrix;
- said sensor turning colored when the dried and cured coat is in contact with water to thus color the coat, said water releasing said revealing agent which reacts with said sensor;
- said sensor turning clear when water dried up from the coat, said sensor and compound returning to their initial state.
According to a third preferred embodiment, the invention relates to a warning system for revealing the presence of water on a floor finish or alike matrix, wherein at least one sensor that can change color when contacted by a revealing agent; and at least one compound that can release said revealing agent when in the presence of water; are incorporated in a composition for floor finish an alike matrix of the type comprising at least one agent to form a coat when applied onto a substrate and a volatile excipient comprising water and in which the above and all other ingredients of the composition are dispersed or dissolved;
the reaction of said sensor with said revealing agent being reversible and the reaction of said compound with water to release said revealing agent being reversible; said sensor and compound being dispersed in the dried and cured floor finish or alike matrix to be obtained upon drying and curing of said composition onto a substrate; said sensor turning colored when the dried and cured coat is in contact with water to thus color the coat, said water releasing said revealing agent which reacts with said sensor; said sensor turning clear when water dried up from the coat, said sensor and compound returning to their initial state.
According to a fourth embodiment, the invention relates to a premix of at least one sensor and at least one compound that can be added to existing floor finish composition intended to define aforesaid floor finish and alike matrix defined in aforesaid first embodiment.
According to a fifth embodiment, the invention relates to a method for preparing a composition as defined in aforesaid first embodiment where a premix of at least one sensor and at least one compound eventually in association with an excipients such as water, are admixed by any appropriate means (e.g. with a mixer, ect) in an existing composition for floor finish or alike matrix.
According to a sixth embodiment, the invention relates to a use of a floor finish or alike matrix as defined hereinabove, as a reversible visual warning signal revealing the presence of water thereon.
Preferably, the substrate is selected from the group consisting of vinyl material, concrete, wood and like material, or is an existing floor finish or alike matrix on said substrate.
Preferably, the sensor is selected from the group consisting of acid-base color indicators. Advantageously, acid-base color indicators may be those turning colored in alkaline condition. An example of particularly preferred acid-base color indicator are phenolphthalein, o-cresolphthalein, thymolphthalein. Of course other color indicators may be used.
Preferably, the compound may be selected from the group consisting of buffers alkaline material. Of course any kind of appropriate compound may be used.
The choice of said compound being function of the sensor used.
Advantageously, said buffer alkaline material may be selected from the group consisting of alkaline hydroxide, metasilicate, soda ash, organic alkaline solvents and alike.
More preferably, the compound that in the presence of water release a reactant that will react with the sensor and turn it colored is an alkaline hydroxide.
An example of such alkaline hydroxide may be sodium hydroxide. Of course, any other type of compound may be used.
Preferably, the ingredient (a) may be selected from the group consisting of polymers, polymer emulsions, coalescents, plasticizers, waxes, alkali soluble resins and mixtures thereof.
More preferably, the composition of ingredient (a) may comprise at least one or several of the following ingredients:
1 the polymer in the polymer emulsion is selected from the group consisting of acrylic polymers; acrylic polymers complexed with zinc; copolymers of styrene and acrylic monomers; and metal crosslinked copolymers of styrene and acrylic monomers;
1 the coalescents are selected from the group consisting of monomethyl ether of diethylene glycol, monoethylether of diethylene glycol and monomethylether of dipropylene glycol;
the plasticizers are selected from the group consisting of dibutyl phthalate, triphenylphosphate and tributoxyethyl phosphate;
the waxes are selected from the group consisting of polyolefin waxes and esters of polyolefin waxes; and the alkali soluble resins are selected from the group consisting of acrylic copolymers complexed with a metal, ionic cross linked resins, and acrylic terpolymer resin.
Preferably, said sensor and compound may be present in the composition allowing to obtain a floor finish or alike matrix, in an amount ranging from 0.00001 to 150 g per liter (more preferably from 0.005% to 0.1%) by weight with respect to the total weight of the composition.
Advantageously, examples of means suitable for applying a coating according to the invention may be selected from the group consisting of brushes, roller applicators, flat mops, floor clothes, clothes, sponges, sprinklers, sprayers, scrapers, waxing machines, and all other well known applicators.
Particularly preferred polymers may be selected from the group consisting of acrylic polymer emulsion, modified acrylic zinc complexes polymer latex, modified acrylic zinc completed polymer emulsion, acrylic styrene metal cross linked copolymers emulsion, styrene acrylic metal cross linked copolymers emulsion, acrylic styrene copolymers emulsion, styrene acrylic copolymers, mixture of any of those with urethane and fluoroacrylic polymers.
Particularly preferred waxes may be selected amongst carnauba and other natural waxes.
Particularly preferred alkali soluble resins may be selected from the group consisting of acrylic interpolymer of copolymer metal, ionic cross linked type or alkali soluble resins or acrylic resin or acrylic terpolymer resins. Examples of particularly preferred alkali soluble resins may be selected from the group consisting of styrene malefic anhydride aqueous ammoniacal solution.
Particularly preferred excipients may be selected from the group consisting of water, coalescent mixtures of solvents and azeotropic mixtures of solvents.
Detailed description of particularly preferred embodiments Advantageously, the present invention relates to an efficient way to detect the presence of wet spots by intense color formation when water activates (liquid phase) a reaction between alkaline material (example: sodium hydroxide) and sensors (example: phenolphthalein, o-cresolphthalein, thymolphthalein or alike).
It is known that wet spot on a floor finish is much more slippery than dry area.
Color indication is then intended to prevent people from walking where water is present of the floor. In order to be able to provide a colored reaction with water on coalesced film, it may be advantageous that one should adjust pH between 9.0 and 13.5 by adding alkaline material (example: caustic) and sensors in the floor finish or alike. The main advantage of this invention is to provide a stable sensitive water detection system already included and optimized in floor finish or alike in such a way to instantly signal this danger to anyone. Of course, this is just a particularly preferred embodiment of the invention. Alternative option are also covered by the present invention.
According to a particularly preferred embodiment of the invention stabilized sensors (preferably, phenolphthalein, o-cresolphthalein, thymolphthalein or alike) are incorporated with buffers alkaline material (preferably caustic, metasilicate, soda ash, organic alkaline solvents and alike) in floor finishes matrix. It has been found possible to coalesce these floor finishes or alike with pH ranging from 9 to 13.5 and generate a clear solid film with good adhesion to surface. It was also found that the said clear film is reactive to water in such a way to promote combination of alkaline and sensors to generate intense coloration. This coloration will then signal any wet spot on the floor. This all technology is intended to provide an efficient safety feature to avoid dangerous and costly falls in commercial, institutional or industrial buildings or any similar area.
Example 1 A floor finish having the following formulation has been prepared.
INGREDIENTS WEIGHT
1 Deionised water 58.00 2 Surfactant' (1%) 0.89 3 Anti-foaming agent' 0.01 4 Diethylene glycol monoethyl ether 3.74 Dibutylphthalate 0.94 6 Tributoxy ethyl phosphate 0.94 7 5-chloro-2-methyl-4-isothiazolin-3-one 0.03 (1.15%) 8 2-methyl-4-isothiazolin-3-one (0.35%) 0.03 9 Aqueous acrylic zinc crosslink-polymer 29.57 emulsion (38%)3 Ethylene-acrylic copolymer emulsion 4.19 11 Non ionic polyethylene emulsion' 1.41 12 Phenolphthalein + ditertbutylparacresol 0.20 + NaOH
(weight ratio 500:1:16) 13 NaOH (50%) 0.05 (to adjust pH
to 11.5) TOTAL 100.00 I I i i ' LODYNE S-100 Anionic type fluorocarbon surface active agent, supplied by Ciba 2 DEE FO PI 35~ Siloxane glycol copolymer, supplied by Ultra Additives Incorporated.
3 RHOPLEX B-924~ supplied by Rohm and Haas Co.
4 AC-540~ supplied by Allied Chemical Co.
- said sensor turning clear when water dried up from the coat, said sensor and compound returning to their initial state.
According to a third preferred embodiment, the invention relates to a warning system for revealing the presence of water on a floor finish or alike matrix, wherein at least one sensor that can change color when contacted by a revealing agent; and at least one compound that can release said revealing agent when in the presence of water; are incorporated in a composition for floor finish an alike matrix of the type comprising at least one agent to form a coat when applied onto a substrate and a volatile excipient comprising water and in which the above and all other ingredients of the composition are dispersed or dissolved;
the reaction of said sensor with said revealing agent being reversible and the reaction of said compound with water to release said revealing agent being reversible; said sensor and compound being dispersed in the dried and cured floor finish or alike matrix to be obtained upon drying and curing of said composition onto a substrate; said sensor turning colored when the dried and cured coat is in contact with water to thus color the coat, said water releasing said revealing agent which reacts with said sensor; said sensor turning clear when water dried up from the coat, said sensor and compound returning to their initial state.
According to a fourth embodiment, the invention relates to a premix of at least one sensor and at least one compound that can be added to existing floor finish composition intended to define aforesaid floor finish and alike matrix defined in aforesaid first embodiment.
According to a fifth embodiment, the invention relates to a method for preparing a composition as defined in aforesaid first embodiment where a premix of at least one sensor and at least one compound eventually in association with an excipients such as water, are admixed by any appropriate means (e.g. with a mixer, ect) in an existing composition for floor finish or alike matrix.
According to a sixth embodiment, the invention relates to a use of a floor finish or alike matrix as defined hereinabove, as a reversible visual warning signal revealing the presence of water thereon.
Preferably, the substrate is selected from the group consisting of vinyl material, concrete, wood and like material, or is an existing floor finish or alike matrix on said substrate.
Preferably, the sensor is selected from the group consisting of acid-base color indicators. Advantageously, acid-base color indicators may be those turning colored in alkaline condition. An example of particularly preferred acid-base color indicator are phenolphthalein, o-cresolphthalein, thymolphthalein. Of course other color indicators may be used.
Preferably, the compound may be selected from the group consisting of buffers alkaline material. Of course any kind of appropriate compound may be used.
The choice of said compound being function of the sensor used.
Advantageously, said buffer alkaline material may be selected from the group consisting of alkaline hydroxide, metasilicate, soda ash, organic alkaline solvents and alike.
More preferably, the compound that in the presence of water release a reactant that will react with the sensor and turn it colored is an alkaline hydroxide.
An example of such alkaline hydroxide may be sodium hydroxide. Of course, any other type of compound may be used.
Preferably, the ingredient (a) may be selected from the group consisting of polymers, polymer emulsions, coalescents, plasticizers, waxes, alkali soluble resins and mixtures thereof.
More preferably, the composition of ingredient (a) may comprise at least one or several of the following ingredients:
1 the polymer in the polymer emulsion is selected from the group consisting of acrylic polymers; acrylic polymers complexed with zinc; copolymers of styrene and acrylic monomers; and metal crosslinked copolymers of styrene and acrylic monomers;
1 the coalescents are selected from the group consisting of monomethyl ether of diethylene glycol, monoethylether of diethylene glycol and monomethylether of dipropylene glycol;
the plasticizers are selected from the group consisting of dibutyl phthalate, triphenylphosphate and tributoxyethyl phosphate;
the waxes are selected from the group consisting of polyolefin waxes and esters of polyolefin waxes; and the alkali soluble resins are selected from the group consisting of acrylic copolymers complexed with a metal, ionic cross linked resins, and acrylic terpolymer resin.
Preferably, said sensor and compound may be present in the composition allowing to obtain a floor finish or alike matrix, in an amount ranging from 0.00001 to 150 g per liter (more preferably from 0.005% to 0.1%) by weight with respect to the total weight of the composition.
Advantageously, examples of means suitable for applying a coating according to the invention may be selected from the group consisting of brushes, roller applicators, flat mops, floor clothes, clothes, sponges, sprinklers, sprayers, scrapers, waxing machines, and all other well known applicators.
Particularly preferred polymers may be selected from the group consisting of acrylic polymer emulsion, modified acrylic zinc complexes polymer latex, modified acrylic zinc completed polymer emulsion, acrylic styrene metal cross linked copolymers emulsion, styrene acrylic metal cross linked copolymers emulsion, acrylic styrene copolymers emulsion, styrene acrylic copolymers, mixture of any of those with urethane and fluoroacrylic polymers.
Particularly preferred waxes may be selected amongst carnauba and other natural waxes.
Particularly preferred alkali soluble resins may be selected from the group consisting of acrylic interpolymer of copolymer metal, ionic cross linked type or alkali soluble resins or acrylic resin or acrylic terpolymer resins. Examples of particularly preferred alkali soluble resins may be selected from the group consisting of styrene malefic anhydride aqueous ammoniacal solution.
Particularly preferred excipients may be selected from the group consisting of water, coalescent mixtures of solvents and azeotropic mixtures of solvents.
Detailed description of particularly preferred embodiments Advantageously, the present invention relates to an efficient way to detect the presence of wet spots by intense color formation when water activates (liquid phase) a reaction between alkaline material (example: sodium hydroxide) and sensors (example: phenolphthalein, o-cresolphthalein, thymolphthalein or alike).
It is known that wet spot on a floor finish is much more slippery than dry area.
Color indication is then intended to prevent people from walking where water is present of the floor. In order to be able to provide a colored reaction with water on coalesced film, it may be advantageous that one should adjust pH between 9.0 and 13.5 by adding alkaline material (example: caustic) and sensors in the floor finish or alike. The main advantage of this invention is to provide a stable sensitive water detection system already included and optimized in floor finish or alike in such a way to instantly signal this danger to anyone. Of course, this is just a particularly preferred embodiment of the invention. Alternative option are also covered by the present invention.
According to a particularly preferred embodiment of the invention stabilized sensors (preferably, phenolphthalein, o-cresolphthalein, thymolphthalein or alike) are incorporated with buffers alkaline material (preferably caustic, metasilicate, soda ash, organic alkaline solvents and alike) in floor finishes matrix. It has been found possible to coalesce these floor finishes or alike with pH ranging from 9 to 13.5 and generate a clear solid film with good adhesion to surface. It was also found that the said clear film is reactive to water in such a way to promote combination of alkaline and sensors to generate intense coloration. This coloration will then signal any wet spot on the floor. This all technology is intended to provide an efficient safety feature to avoid dangerous and costly falls in commercial, institutional or industrial buildings or any similar area.
Example 1 A floor finish having the following formulation has been prepared.
INGREDIENTS WEIGHT
1 Deionised water 58.00 2 Surfactant' (1%) 0.89 3 Anti-foaming agent' 0.01 4 Diethylene glycol monoethyl ether 3.74 Dibutylphthalate 0.94 6 Tributoxy ethyl phosphate 0.94 7 5-chloro-2-methyl-4-isothiazolin-3-one 0.03 (1.15%) 8 2-methyl-4-isothiazolin-3-one (0.35%) 0.03 9 Aqueous acrylic zinc crosslink-polymer 29.57 emulsion (38%)3 Ethylene-acrylic copolymer emulsion 4.19 11 Non ionic polyethylene emulsion' 1.41 12 Phenolphthalein + ditertbutylparacresol 0.20 + NaOH
(weight ratio 500:1:16) 13 NaOH (50%) 0.05 (to adjust pH
to 11.5) TOTAL 100.00 I I i i ' LODYNE S-100 Anionic type fluorocarbon surface active agent, supplied by Ciba 2 DEE FO PI 35~ Siloxane glycol copolymer, supplied by Ultra Additives Incorporated.
3 RHOPLEX B-924~ supplied by Rohm and Haas Co.
4 AC-540~ supplied by Allied Chemical Co.
5 AC-392~ supplied by Allied Chemical Co.
to Preparation process at ambient temperature. (20-25°C.) A) Use a first stainless steel tank.
B) Add 80% of water directly in the tank.
C) Start a mechanical stirrer for stirring the content of the first stainless steel tank.
D) Add items 4, 5 and 6, in a weight in a second stainless steel tank, mix the content of this tank and then transfer it to the first stainless steel tank.
E) Add part of the remaining water in the second stainless steel tank in order to clean it, and then pour the content of the second tank into the first stainless steel tank.
F) Add item 2 directly in the first stainless steel tank.
G) Prepare an aqueous solution of item 3 and after stirring pour said solution in the first stainless steel tank.
H) Prepare an aqueous solution of item 7 and 8 and, after stirring, pour said solution in the first stainless steel tank.
I) Add item 9 directly into the first stainless steel tank.
J) Add item 10 directly into the first stainless steel tank.
K) Add item 11 directly into the first stainless steel tank.
L) Add premix item 12 directly into the first stainless steel tank.
M) pH is adjusted to 11.5 by the addition of NaOH (50%).
N) Continue stirring for 2 hours.
The aforesaid formulation is then applied like conventional product at 2000 square feet per US gallon. The formulation dries on the floor after 20 to 30 minutes like conventional floor finish. The number of coats can be from 1 to 8 depending on the longevity expected from this application of floor finish. In the present example there was one coat. Once this floor finish is completely dried, application of only a few millilitres of water on the floor will produce an instantaneous and intensive coloration (pink because of phenolphthalein) warning of the presence of water on the floor. Such colour appearance on wet spot is intended to avoid dangerous and costly falls. The coloration remains as long as the water is present on the floor. When the water evaporates, the floor finish becomes colourless again.
Alternatively, this safety system can be applied as a finishing layer over regular floor finish in order to provide a safety feature over an existing finish in periods more likely to generate water on the floor (winter in northern areas, rain season in others, etc.) It is then applied as a finishing layer over the existing finish and let to dry just as any other finish. Dropping water over the floor will then produce a visible coloration of the water.
It is often the case that when a floor finish has been used for a number of days, it will loose its glossy appearance. Many methods of working the floor are known to bring back the "wet look" of a floor: cleaning, polishing, burnishing are examples of such methods. One of the widely used methods involved the addition of floor finish building solution during the polishing of burnishing operations. The products used for that purpose are identified by the generic name "Shine".
Detailed description of particularly preferred embodiments Example 2 A Shine having the following formulation has been prepared.
INGREDIENTS WEIGHT
1 Deionised water 55.52 2 Surfactant' ( 1 %) 0.04 3 Anti-foaming agents 0.01 4 Diethylene glycol monoethyl ether 4.0 Dipropylene glycol methyl ether 0.94 6 Tributoxy ethyl phosphate 0.65 7 Surfactant 1.5 8 Aqueous acrylic zinc crosslink-polymer 22.0 emulsion (38%)3 9 Ethylene-acrylic copolymer emulsionff 12 Non ionic polyethylene emulsion' 3.3 11 Phenolphthalein + ditertbutylparacresol 0.035 + NaOH
(weight ratio 500:1:16) 12 NaOH (50%) 0.002 (to adjust pH
to 11.5) TOTAL 100.00 ' CHEMWET 29 Anionic type fluorocarbon surface active agent, supplied by Ciba 2 DEE FO PI-35~ Siloxane glycol copolymer, supplied by Ultra Additives Incorporated or compound having similar purpose in the mixture.
3 RHOPLEX NT-2624 ~ supplied by Rohm and Haas Co. or compound having similar purpose in the mixture 4 CONREZ S l OA supplied by OMNOVA Solutions Inc. or compound having similar purpose in the mixture.
HOECHST VP 371 FP supplied by American Hoechst Corporation or compound having similar purpose in the preparation ~ ABEX 18 S supplied by Rhodia or compound having similar purpose in the mixture Preparation process at ambient temperature. (20-25°C.) A)Use a first stainless steel tank.
B)Add 80% of water directly in the tank.
C)Start a mechanical stirrer for stirring the content of the first stainless steel tank.
D)Add item 2 and 7 directly in the first stainless steel tank.
E)Add items 4, 5 and 6, in a weight in a second stainless steel tank, mix the content of this tank and then transfer it to the first stainless steel tank.
F) Add part of the remaining water in the second stainless steel tank in order to clean it, and then pour the content of the second tank into the first stainless steel tank.
G) Prepare an aqueous solution of item 3 and after stirring pour said solution in the first stainless steel tank.
H) Add item 9 directly into the first stainless steel tank.
I) Add item 10 directly into the first stainless steel tank.
J) Add item 11 directly into the first stainless steel tank.
K) Add premix item 12 directly into the first stainless steel tank.
L) pH is adjusted to 11.5 by the addition of NaOH (50%).
M) Continue stirring for 2 hours.
This formulation is used as a spray and buff product. It is applied to the finish just before the polishing device is applied. This permits to restore the brilliance of the finish; it renews the protection of the flooring and restores the safety feature of the finish. Once the sprayed liquid has been buffed (spread and polished), it is already dried and ready to perform. Dropping water over this buffed area will produce an intense coloration of the water (reddish with the example of formulation given above).
The combination of sensor and revealers can be tailored to any formulation of floor finish in order to give this polish a safety feature, by someone skilled in the art. Also, this combination of sensor / revealers can be tailored to many other coatings based on coalescing a polymer or mixture of polymers such as furniture finish, paints, etc.
Of course, the above description of the embodiments of the invention is not limitative and also comprises all possible variations and embodiments that may seems obvious to someone skilled in the art.
to Preparation process at ambient temperature. (20-25°C.) A) Use a first stainless steel tank.
B) Add 80% of water directly in the tank.
C) Start a mechanical stirrer for stirring the content of the first stainless steel tank.
D) Add items 4, 5 and 6, in a weight in a second stainless steel tank, mix the content of this tank and then transfer it to the first stainless steel tank.
E) Add part of the remaining water in the second stainless steel tank in order to clean it, and then pour the content of the second tank into the first stainless steel tank.
F) Add item 2 directly in the first stainless steel tank.
G) Prepare an aqueous solution of item 3 and after stirring pour said solution in the first stainless steel tank.
H) Prepare an aqueous solution of item 7 and 8 and, after stirring, pour said solution in the first stainless steel tank.
I) Add item 9 directly into the first stainless steel tank.
J) Add item 10 directly into the first stainless steel tank.
K) Add item 11 directly into the first stainless steel tank.
L) Add premix item 12 directly into the first stainless steel tank.
M) pH is adjusted to 11.5 by the addition of NaOH (50%).
N) Continue stirring for 2 hours.
The aforesaid formulation is then applied like conventional product at 2000 square feet per US gallon. The formulation dries on the floor after 20 to 30 minutes like conventional floor finish. The number of coats can be from 1 to 8 depending on the longevity expected from this application of floor finish. In the present example there was one coat. Once this floor finish is completely dried, application of only a few millilitres of water on the floor will produce an instantaneous and intensive coloration (pink because of phenolphthalein) warning of the presence of water on the floor. Such colour appearance on wet spot is intended to avoid dangerous and costly falls. The coloration remains as long as the water is present on the floor. When the water evaporates, the floor finish becomes colourless again.
Alternatively, this safety system can be applied as a finishing layer over regular floor finish in order to provide a safety feature over an existing finish in periods more likely to generate water on the floor (winter in northern areas, rain season in others, etc.) It is then applied as a finishing layer over the existing finish and let to dry just as any other finish. Dropping water over the floor will then produce a visible coloration of the water.
It is often the case that when a floor finish has been used for a number of days, it will loose its glossy appearance. Many methods of working the floor are known to bring back the "wet look" of a floor: cleaning, polishing, burnishing are examples of such methods. One of the widely used methods involved the addition of floor finish building solution during the polishing of burnishing operations. The products used for that purpose are identified by the generic name "Shine".
Detailed description of particularly preferred embodiments Example 2 A Shine having the following formulation has been prepared.
INGREDIENTS WEIGHT
1 Deionised water 55.52 2 Surfactant' ( 1 %) 0.04 3 Anti-foaming agents 0.01 4 Diethylene glycol monoethyl ether 4.0 Dipropylene glycol methyl ether 0.94 6 Tributoxy ethyl phosphate 0.65 7 Surfactant 1.5 8 Aqueous acrylic zinc crosslink-polymer 22.0 emulsion (38%)3 9 Ethylene-acrylic copolymer emulsionff 12 Non ionic polyethylene emulsion' 3.3 11 Phenolphthalein + ditertbutylparacresol 0.035 + NaOH
(weight ratio 500:1:16) 12 NaOH (50%) 0.002 (to adjust pH
to 11.5) TOTAL 100.00 ' CHEMWET 29 Anionic type fluorocarbon surface active agent, supplied by Ciba 2 DEE FO PI-35~ Siloxane glycol copolymer, supplied by Ultra Additives Incorporated or compound having similar purpose in the mixture.
3 RHOPLEX NT-2624 ~ supplied by Rohm and Haas Co. or compound having similar purpose in the mixture 4 CONREZ S l OA supplied by OMNOVA Solutions Inc. or compound having similar purpose in the mixture.
HOECHST VP 371 FP supplied by American Hoechst Corporation or compound having similar purpose in the preparation ~ ABEX 18 S supplied by Rhodia or compound having similar purpose in the mixture Preparation process at ambient temperature. (20-25°C.) A)Use a first stainless steel tank.
B)Add 80% of water directly in the tank.
C)Start a mechanical stirrer for stirring the content of the first stainless steel tank.
D)Add item 2 and 7 directly in the first stainless steel tank.
E)Add items 4, 5 and 6, in a weight in a second stainless steel tank, mix the content of this tank and then transfer it to the first stainless steel tank.
F) Add part of the remaining water in the second stainless steel tank in order to clean it, and then pour the content of the second tank into the first stainless steel tank.
G) Prepare an aqueous solution of item 3 and after stirring pour said solution in the first stainless steel tank.
H) Add item 9 directly into the first stainless steel tank.
I) Add item 10 directly into the first stainless steel tank.
J) Add item 11 directly into the first stainless steel tank.
K) Add premix item 12 directly into the first stainless steel tank.
L) pH is adjusted to 11.5 by the addition of NaOH (50%).
M) Continue stirring for 2 hours.
This formulation is used as a spray and buff product. It is applied to the finish just before the polishing device is applied. This permits to restore the brilliance of the finish; it renews the protection of the flooring and restores the safety feature of the finish. Once the sprayed liquid has been buffed (spread and polished), it is already dried and ready to perform. Dropping water over this buffed area will produce an intense coloration of the water (reddish with the example of formulation given above).
The combination of sensor and revealers can be tailored to any formulation of floor finish in order to give this polish a safety feature, by someone skilled in the art. Also, this combination of sensor / revealers can be tailored to many other coatings based on coalescing a polymer or mixture of polymers such as furniture finish, paints, etc.
Of course, the above description of the embodiments of the invention is not limitative and also comprises all possible variations and embodiments that may seems obvious to someone skilled in the art.
Claims (28)
1. A floor finish or alike matrix forming a clear coat on a substrate and obtained from the drying and curing of a composition of the type comprising:
~ (a) at least one agent to form a coat when applied onto a substrate;
~ (b) a volatile excipient comprising water and in which the above and all other ingredients of the composition are dispersed or dissolved;
~ (c) at least one sensor that can change color when contacted by a revealing agent; and ~ (d) at least one compound that can release said revealing agent when in the presence of water;
- the reaction of said sensor with said revealing agent being reversible and the reaction of said compound with water to release said revealing agent being reversible;
- said sensor and compound being dispersed in the obtained dried and cured floor finish or alike matrix;
- said sensor turning colored when the dried and cured coat is in contact with water to thus color the coat, said water releasing said revealing agent which reacts with said sensor;
- said sensor turning clear when water dried up from the coat, said sensor and compound returning to their initial state to thus define a reversible visual warning signal when there is water on the floor finish or alike matrix.
~ (a) at least one agent to form a coat when applied onto a substrate;
~ (b) a volatile excipient comprising water and in which the above and all other ingredients of the composition are dispersed or dissolved;
~ (c) at least one sensor that can change color when contacted by a revealing agent; and ~ (d) at least one compound that can release said revealing agent when in the presence of water;
- the reaction of said sensor with said revealing agent being reversible and the reaction of said compound with water to release said revealing agent being reversible;
- said sensor and compound being dispersed in the obtained dried and cured floor finish or alike matrix;
- said sensor turning colored when the dried and cured coat is in contact with water to thus color the coat, said water releasing said revealing agent which reacts with said sensor;
- said sensor turning clear when water dried up from the coat, said sensor and compound returning to their initial state to thus define a reversible visual warning signal when there is water on the floor finish or alike matrix.
2. A floor finish or alike matrix according to claim 1, wherein the substrate is selected from the group consisting of vinyl material, concrete, wood and like material, or is an existing floor finish or alike matrix on said substrate.
3. A floor finish or alike matrix according to claim 2, wherein the sensor is selected from the group consisting of acid-base color indicators.
4. A floor finish or alike matrix according to claim 3, wherein the sensor is an acid-base color indicator that turned colored in alkaline condition.
5. A floor finish or alike matrix according to claim 4, wherein the acid-base color indicator is selected from the group consisting of phenolphthalein, o-cresolphthalein and thymolphthalein.
6. A floor finish or alike matrix according to claim 5, wherein the compound is selected from the group consisting of buffers alkaline material.
7. A floor finish or alike matrix according to claim 6, wherein the buffer alkaline material is selected from the group consisting of alkaline hydroxide, metasilicate, soda ash, organic alkaline solvents and alike.
8. A floor finish or alike matrix according to claim 6, wherein the compound that in the presence of water release a reactant that will react with the sensor and turn it colored is an alkaline hydroxide.
9. A floor finish or alike matrix according to claim 8, wherein the alkaline hydroxide is sodium hydroxide.
10. Method for installing or restoring a visual warning of the presence of water on a floor finish or alike matrix, wherein a composition comprising:
~ (a) at least one agent to form a coat when applied onto a substrate;
~ (b) a volatile excipient comprising water and in which the above and all other ingredients of the composition are dispersed or dissolved;
~ (c) at least one sensor that can change color when contacted by a revealing agent; and (d) at least one compound that can release said revealing agent when in the presence of water;
the reaction of said sensor with said revealing agent being reversible and the reaction of said compound with water to release said revealing agent being reversible; is applied on a substrate and allowed to dry and cure to form a coat where said sensor and compound are being dispersed in the obtained dried and cured floor finish or alike matrix;
- said sensor turning colored when the dried and cured coat is in contact with water to thus color the coat, said water releasing said revealing agent which reacts with said sensor;
- said sensor turning clear when water dried up from the coat, said sensor and compound returning to their initial state.
~ (a) at least one agent to form a coat when applied onto a substrate;
~ (b) a volatile excipient comprising water and in which the above and all other ingredients of the composition are dispersed or dissolved;
~ (c) at least one sensor that can change color when contacted by a revealing agent; and (d) at least one compound that can release said revealing agent when in the presence of water;
the reaction of said sensor with said revealing agent being reversible and the reaction of said compound with water to release said revealing agent being reversible; is applied on a substrate and allowed to dry and cure to form a coat where said sensor and compound are being dispersed in the obtained dried and cured floor finish or alike matrix;
- said sensor turning colored when the dried and cured coat is in contact with water to thus color the coat, said water releasing said revealing agent which reacts with said sensor;
- said sensor turning clear when water dried up from the coat, said sensor and compound returning to their initial state.
11. A method according to claim 10, wherein the substrate is selected from the group consisting of a vinyl material, concrete, wood and like material, or a coat of an existing floor finish or alike matrix on said substrate.
12. A method according to claim 11, wherein the sensor is selected from the group consisting of acid-base color indicators.
13. A method according to claim 12, wherein the sensor is an acid-base color indicator that turned colored in alkaline condition.
14. A method according to claim 13, wherein the acid-base color indicator is selected from the group consisting of phenolphthalein, o-cresolphthalein and thymolphthalein.
15. A method according to claim 14, wherein the compound is selected from the group consisting of buffers alkaline material.
16. A method according to claim 15, wherein the buffer alkaline material is selected from the group consisting of alkaline hydroxide, metasilicate, soda ash, organic alkaline solvents and alike.
17. A method according to claim 15, wherein the compound that in the presence of water release a reactant that will react with the sensor and turn it colored is an alkaline hydroxide.
18. A method according to claim 17, wherein the alkaline hydroxide is sodium hydroxide.
19 19. A warning system for revealing the presence of water on a floor finish or alike matrix, wherein at least one sensor that can change color when contacted by a revealing agent; and at least one compound that can release said revealing agent when in the presence of water; are incorporated in a composition for floor finish an alike matrix of the type comprising at least one agent to form a coat when applied onto a substrate and a volatile excipient comprising water and in which the above and all other ingredients of the composition are dispersed or dissolved; the reaction of said sensor with said revealing agent being reversible and the reaction of said compound with water to release said revealing agent being reversible; said sensor and compound being dispersed in the dried and cured floor finish or alike matrix to be obtained upon drying and curing of said composition onto a substrate; said sensor turning colored when the dried and cured coat is in contact with water to thus color the coat, said water releasing said revealing agent which reacts with said sensor; said sensor turning clear when water dried up from the coat, said sensor and compound returning to their initial state.
20. A warning system according to claim 19, wherein the substrate is selected from the group consisting of vinyl material, concrete, wood and like material, or is an existing floor finish or alike matrix on said substrate.
21. A warning system according to claim 20, wherein the sensor is selected from the group consisting of acid-base color indicators.
22. A warning system according to claim 21, wherein the sensor is an acid-base color indicator that turned colored in alkaline condition.
23. A warning system according to claim 22, wherein the acid-base color indicator is selected from the group consisting of phenolphthalein, o-cresolphthalein and thymolphthalein.
24. A warning system according to claim 23, wherein the compound is selected from the group consisting of buffers alkaline material.
25. A warning system according to claim 24, wherein the buffer alkaline material is selected from the group consisting of alkaline hydroxide, metasilicate, soda ash, organic alkaline solvents and alike.
26. A warning system according to claim 24, wherein the compound that in the presence of water release a reactant that will react with the sensor and turn it colored is an alkaline hydroxide.
27. A warning system according to claim 26, wherein the alkaline hydroxide is sodium hydroxide.
28. (in Canada only) Use of a floor finish or alike matrix as defined in any one of claims 1 to 9, as a reversible visual warning signal revealing the presence of water thereon.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US61596804P | 2004-10-06 | 2004-10-06 | |
| US60/615,968 | 2004-10-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2522638A1 true CA2522638A1 (en) | 2006-04-06 |
Family
ID=36141745
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2522638 Abandoned CA2522638A1 (en) | 2004-10-06 | 2005-10-06 | Water sensitive indicators as a safety floor device and use thereof |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2522638A1 (en) |
-
2005
- 2005-10-06 CA CA 2522638 patent/CA2522638A1/en not_active Abandoned
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