WO1994016835A1 - Materiau a projeter contenant un desinfectant - Google Patents

Materiau a projeter contenant un desinfectant Download PDF

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Publication number
WO1994016835A1
WO1994016835A1 PCT/US1993/012336 US9312336W WO9416835A1 WO 1994016835 A1 WO1994016835 A1 WO 1994016835A1 US 9312336 W US9312336 W US 9312336W WO 9416835 A1 WO9416835 A1 WO 9416835A1
Authority
WO
WIPO (PCT)
Prior art keywords
blast media
antimicrobial agent
blast
abrasive particles
media
Prior art date
Application number
PCT/US1993/012336
Other languages
English (en)
Inventor
Benny S. Yam
Amy L. Joseph
Antohony E. Winston
Keith A. Jones
Original Assignee
Church & Dwight Company, Inc.
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Church & Dwight Company, Inc. filed Critical Church & Dwight Company, Inc.
Priority to AU59849/94A priority Critical patent/AU5984994A/en
Publication of WO1994016835A1 publication Critical patent/WO1994016835A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C11/00—Selection of abrasive materials or additives for abrasive blasts
    • B24C11/005—Selection of abrasive materials or additives for abrasive blasts of additives, e.g. anti-corrosive or disinfecting agents in solid, liquid or gaseous form
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B7/00—Cleaning by methods not provided for in a single other subclass or a single group in this subclass
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C1/00—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods
    • B24C1/08—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods for polishing surfaces, e.g. smoothing a surface by making use of liquid-borne abrasives
    • B24C1/086—Descaling; Removing coating films
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C11/00—Selection of abrasive materials or additives for abrasive blasts
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K3/00—Materials not provided for elsewhere
    • C09K3/14—Anti-slip materials; Abrasives
    • C09K3/1409—Abrasive particles per se

Definitions

  • the present invention relates to improvements in blast media utilized to remove adherent material such as paint, scale, dirt, grease and the like from solid surfaces.
  • the present invention is directed to abrasive blast media which has incorporated therein an antimicrobial agent to sanitize the surface being blast cleaned.
  • blasting technigues comprising dry blasting which involves directing the abrasive particles to a surface by means of pressurized air typically ranging from 30 to 150 psi, wet blasting in which the abrasive blast media is directed to the surface by a highly pressurized stream of water typically 3,000 psi and above, multi-step processes comprising dry or wet blasting and a mechanical technigue such as sanding, chipping, etc. and a single step process in which both air and water are utilized either in combination at high pressures to propel the abrasive blast media to the surface as disclosed in U.S. 4,817,342, or in combination with relatively low pressure water used as a dust control agent or to control substrate damage have been used.
  • Water for dust control has been mixed with the air either internally in the blast nozzle or at the targeted surface to be cleaned and such latter process, although primarily a dry blasting technigue, is considered wet blasting inasmuch as media recovery and clean up is substantially different from that utilized in a purely dry blasting operation.
  • the blast media or abrasive particles most widely used for blasting surfaces to remove adherent material therefrom is sand.
  • Sand is a hard abrasive which is very useful in removing adherent materials such as paint, scale and other materials from metal surfaces such as steel. While sand is a most useful abrasive for each type of blasting technigue, there are disadvantages in using sand as a blast media.
  • sand i.e., crystalline silica
  • sand i.e., crystalline silica
  • sand is friable and upon hitting a metal surface will break into minute particles which are small enough to enter the lungs. These minute silica particles pose a substantial health hazard. Additionally, much effort is needed to remove the sand from the surrounding area after completion of blasting. Still another disadvantage is the hardness of sand itself. Thus, sand cannot readily be used as an abrasive to remove coatings from relatively soft metals such as aluminum or any other soft substrate such as plastic, plastic composite structures, concrete or wood, as such relatively soft substrates can be excessively damaged by the abrasiveness of sand. Moreover, sand cannot be used around moving parts of machinery inasmuch as the sand particles can enter bearing surfaces and the like.
  • An alternative to sand as a blast media, particularly, for removing adherent coatings from relatively soft substrates such as softer metals as aluminum, composite surfaces, plastics, ceramic tile, concrete and the like is sodium bicarbonate. While sodium bicarbonate is softer than sand, it is sufficiently hard to remove coatings from aluminum surfaces and as well remove other coatings including paint, dirt, and grease from non-metallic surfaces without harming the substrate surface. Sodium bicarbonate is not harmful to the environment and is most advantageously water soluble such that the particles which remain subseguent to blasting can be simply washed away without yielding environmental harm. Since sodium bicarbonate is water soluble and is benign to the environment, this particular blast media has found increasing use in cleaning dirt, grease and oil and the like from harder surfaces such as steel as well as interior surfaces such as those which contact food such as in environments of food processing or handling.
  • Sodium bicarbonate is also a friable abrasive and, like sand, will form a considerable amount of dust during the blast cleaning process.
  • water is included in the pressurized fluid carrier medium.
  • water can be used as the carrier fluid or, more preferably, injected into a pressurized air stream which carries the blast media from the blast nozzle to the targeted surface.
  • Water as a means to control dust has been mixed with the air stream internally in the blast nozzle or into the air stream externally of the nozzle. The addition of water to the pressurized air stream has been very effective in controlling dust formed by the sodium bicarbonate blast media.
  • water soluble media especially water soluble media which are environmentally benign such as sodium bicarbonate
  • sodium bicarbonate blast media has found increasing use in cleaning surfaces of ceramic, aluminum, stainless steel, etc., which come into contact with or are in the environment of food stuffs, such surfaces including ones involved in food storage, food processing and food handling and including structural surfaces as well as machinery, conveying eguipment and the like.
  • Such surfaces must be maintained in a clean condition and must be free of microorganisms which can contaminate and spoil any food stuffs present in the nearby environment. It would be most worthwhile to provide a secondary treatment of sanitizing such surfaces during a blast cleaning operation.
  • Another object is to blast clean indoor surfaces with a water soluble abrasive media and to effect a secondary sanitizing treatment to such surfaces.
  • Still another object of the invention is to provide a powdery, free-flowing abrasive blast media which can provide a secondary sanitizing treatment to solid surfaces.
  • the objectives of the present invention are achieved by incorporating with a water soluble blast media a small amount of an antimicrobial agent.
  • the antimicrobial agent can be solid or liguid and incorporated with the blast media either by mixing the antimicrobial agent with the solid abrasive particles of the blast media or by adding the agent in the water stream which is utilized either as the carrier fluid for the blast media or added to a pressurized air stream for the purpose of dust control.
  • the addition of the antimicrobial agent to the blast media effects a secondary sanitizing treatment on the substrate which is being blast cleaned and stripped of contaminants.
  • the blast media to be utilized include a powdery, water soluble abrasive having an average particle size of from about 50 to 1,000 microns in diameter.
  • the abrasive particles should not exceed 1,000 microns and, thus, a useful blast media will not contain greater than 1% particles over 1,000 microns.
  • Water soluble blast media are advantageous since such blast media can be readily disposed of by a water stream, are readily separated from the insoluble paints and resins which have been stripped to facilitate waste disposal, and since most water soluble blast media are relatively soft, i.e., Mohs hardness less than 3.0, such media can be utilized to remove coatings, grease, dirt and the like from a variety of substrates including relatively soft metals such as aluminum as well as plastic, ceramic tile, concrete, wood and composites of such materials. Water soluble media having a Mohs hardness of less than 5.0 are generally useful to remove contaminates from relatively soft substrates.
  • Non-limiting examples of water soluble blast media which can be utilized include the water soluble alkali metal and alkaline earth metal salts such the chlorides, chlorates, carbonates, bicarbonates, sulfates, silicates, the hydrates of the above, etc.
  • the preferred blast media are the alkali metal salts and, in particular, the sodium and potassium carbonates, bicarbonates, silicates and sulfates.
  • the most preferred blast media are the alkali metal bicarbonates as exemplified by sodium bicarbonate.
  • sodium sesguicarbonate natural sodium sesguicarbonate known as trona
  • sodium bicarbonate sodium carbonate, potassium carbonate, potassium bicarbonate, sodium chloride and sodium sulfate which is described in commonly assigned U.S.
  • Patent No. 5,112,406 It is important to note that by water soluble is not meant completely water soluble as some salts and natural minerals such as trona may contain minor amounts of insoluble materials. For example, trona which is a natural sodium sesguicarbonate may contain up to 10 wt.% of insolubles. Thus, by water soluble is meant to include those materials which are substantially soluble in water.
  • the antimicrobial agent to be incorporated with the abrasive in the blast media of this invention can be any compound or substance that kills microorganisms or prevents or inhibits their growth and reproduction.
  • Antimicrobial agent in accordance with this invention is meant to include disinfectants, sanitizers, bacteriostats, sterilizers, fungicides and fungistats. Such materials are widely known and a list of same can be found in the Kirk-Othmer, Encyclopedia of Chemical Technology, 3rd Ed., 1991, Vol. 13, pp. 223-252 under the heading "Industrial Antimicrobial Agents", the content of which is herein incorporated by reference.
  • the antimicrobial agents of this invention can be inorganic or organic, liguid or solid, water soluble or water insoluble.
  • the method of incorporating the antimicrobial agent in the blast media of this invention will vary depending upon the physical state of the antimicrobial agent and the solubility thereof in water.
  • Non-limiting examples of antimicrobial agents include various halogen compounds such as chlorine or iodine compounds, phenols, alcohols, quaternary ammonium compounds, amines, alkanol amines and various heavy metal compounds including organic mercurial compounds.
  • Other metallic compounds are particularly useful inasmuch as these compounds are solids and can be mixed with the powdery abrasive media without difficulty and without adversely affecting the free flow of blast media through the blast nozzle to the targeted surface.
  • a preferred metallic compound is zinc oxide which is known to have antimicrobial properties, in particular, fungicidal properties.
  • a particularly useful zinc oxide is a submicron size zinc oxide marketed as "Sachtotec" from Sachtleben Chemie.
  • This particular submicron zinc oxide has a primary particle size of 5-15 nm which results in a high specific surface area.
  • the very small sized zinc oxide is also easily dispersed in water and, thus, can find particular use in wet blasting systems in which water is used as the primary carrier fluid or in those instances wherein the water stream is utilized to control dust formation of the blast media as it contacts the targeted substrate surface.
  • antimicrobial metal salts which are not only solid but many of which are water soluble.
  • non-limiting examples of useful metal salts include ZnCl 2 , Znl 2 , Zn(C 2 H 3 0 2 ) 2 .2H 2 0, ZnS0 4 .7H 2 0, NiCl 2 .6H 2 0, Ni(N0 3 ) ⁇ .6H 2 0, C ⁇ Cl 2 .6H 2 0, Co(N0 3 ) 2 , C ⁇ Cl 2 .2H 2 0, Co(N0 3 ) 2 .6H 2 0, Pb(N0 3 ) 2 , Pb(C 2 H 3 0 2 ) 2 .3H 2 0, SnCl 2 .2H 2 0, FeCl 3 .6H 2 0, and Fe 2 (S0 4 ) 3 .
  • useful sanitizing agents include potassium, sodium or calcium hypochlorite and dischloroisocyanuric acid or the sodium or potassium salts thereof with or without the bromides of potassium, sodium or calcium.
  • Other useful compounds and solutions are described in Current Good Manufacturing Processes, by Wilber A. Gould PhD, CTI Publications, Inc., Baltimore, MD, 1990, pp. 158-163, herein incorporated by reference.
  • the antimicrobial agent of the present invention is a liguid, such agent can be incorporated into the water soluble blast media in a variety of ways. For example, the antimicrobial agent can be sprayed directly onto the blast media particles.
  • the flow of blast media through the metering means which meters the amount of abrasive particles into the fluid carrier stream may be adversely affected by incorporating the antimicrobial agent in this manner.
  • the very fine particles of blast media may agglomerate and otherwise cake or bride together and render particle flow through the metering microns difficult.
  • the antimicrobial agent can be sprayed directly onto the abrasive blast media particles and the antimicrobial agent- coated particles then dusted with a very finely divided material to reduce the caking and bridging between the abrasive particles.
  • finely divided silicates such as clays, talc, mica, diatomaceous earth and metal silicates such as aluminosilicates including zeolites may be used for dusting the liquid antimicrobial agent-coated abrasive.
  • metal silicates such as aluminosilicates including zeolites.
  • Still another method of incorporating a liquid antimicrobial agent into the blast media is to apply the antimicrobial agent to solid carrier particles similar to those described above which are then added to the abrasive particles.
  • various silicates can be utilized as the carrier particles including clays such as kaolin clay, talc, mica, aluminosilicates such as zeolites, as well as water insoluble carbonates, sulfates, etc.
  • the amount of water insoluble materials should be minimized so as to not adversely affect the advantages of the water soluble blast media.
  • An alternative to adding a liquid antimicrobial agent to any of the solid materials which form the blast media is to add the antimicrobial agent to the water which is utilized as the primary fluid carrier medium or as a dust control agent.
  • the antimicrobial agent can be added at the supply of water or can be added to the water stream at the blast nozzle.
  • the liguid antimicrobial agent is not water soluble and not readily dispersable in water, it will be necessary to include a dispersing agent with the liquid antimicrobial agent.
  • a dispersing agent are liguid surface active compounds which contain a hydrophobic portion and a hydrophilic portion in the molecule.
  • the addition of a further liquid to the blast media may result in additional agglomeration or caking of the abrasive particles and, thus, the amount of any dispersant should be the minimum needed to disperse the antimicrobial agent in the-water stream which acts as the primary carrier medium or, more preferably, as provided for dust control.
  • the antimicrobial agent is added to the abrasive blast media as a particulate solid which can be readily mixed with the abrasive particles and provide a powdery, free- flowing blast media.
  • One useful technigue of incorporating a liguid antimicrobial agent as a solid particle in the blast media may be to form a granulated clathrate of the liguid antimicrobial agent and a water soluble compound having clathration capability.
  • a particularly useful compound which has clathration properties is urea. It may not be possible to clathrate every liquid antimicrobial agent.
  • the granulated antimicrobial agent- clathrate compound may be formulated in a variety of ways, if possible, and subsequently incorporated into the abrasive blast media as a solid by several techniques.
  • the antimicrobial agent- clathrate compound is prepared such as by melting the clathrate and the liguid antimicrobial agent in a ratio of about 2:1 to about 10:1 clathrate to antimicrobial agent, cooling the mixture to form a dry crystalline solid and then grinding the solid into particles which are then directly added to the abrasive blast medium as a dry powder.
  • the clathrate can be prepared in the presence of the abrasive blast media particles to produce a dry particle of similar density to that of the medium.
  • the hot molten liguid antimicrobial agent and urea mixture can be sprayed directly onto the abrasive blast media particles.
  • the clathrate and antimicrobial agent can be dissolved in an appropriate solvent and sprayed onto the abrasive blast media particles. The solvent is subsequently allowed to evaporate and the clathrate forms directly on the abrasive blast media particles.
  • the antimicrobial agent will be released from the clathrate once the clathrate particle is contacted with the water stream which is provided as the fluid carrier medium or used for dust control since the clathrate is readily water soluble.
  • the clathrate compound will have to include a dispersant which can be included in the clathrate compound by simply adding it with the liquid antimicrobial agent during the clathrate compound formation and/or method of incorporating such clathrate compound in the abrasive blast media as described above.
  • Still another method is to mix or spray the abrasive solid with the liquid antimicrobial agent, compact the mixture under heavy pressure to form pellets, sheets or sticks of the blast media, granulate, and screen the granulated solids to the desired size.
  • the antimicrobial agent as a solid in the abrasive blast media.
  • those antimicrobial agents which are natural solid materials and which can be provided in particulate form are most preferable.
  • antimicrobial agents such as zinc oxide and the other water soluble metal salts described above can be readily incorporated into the blast media of this invention by simply mixing the particles of the antimicrobial agent as is with the abrasive particles.
  • the amount of the antimicrobial agent to be incorporated into the blast media will vary widely depending upon the purpose of the antimicrobial agent as well as the activity of the specific antimicrobial agent to achieve the desired sanitizing effect.
  • minimum amounts of antimicrobial agent are those which provide the desired sanitizing treatment of the solid surface which is being blast cleaned. Excessive amounts will be those which adversely affect the free-flow of the blast media through the metering device or blast nozzle or which substantially reduce the ability of the blast media to strip contaminants such as paints, resins, dirt, grease, oil and the like from the targeted substrate surface.
  • the antimicrobial agent should be incorporated at a minimum of at least about 0.1 wt.% relative to the blast media and at a maximum should not exceed about 10 wt.% of the blast media. It is also useful in accordance with the present invention to include a flow aid or a decaking agent with the blast media.
  • the flow aid is a hydrophilic silica, hydrophobic silica, hydrophobic polysiloxane or mixture thereof. Hydrophobic silica, unlike known hydrophilic silicas, is substantially free of non- hydrogen bonded silanol group and absorbed water.
  • Aerosil R 972 a product which is available from DeGussa AG.
  • This material is a pure coagulated silicon dioxide aerosol, in which about 75% of the silanol groups on the surface thereof are chemically reacted with dimethyldichlorosilane, the resulting product having about 0.7 mmol of chemically combined methyl groups per 100 m 2 of surface area and containing about 1% carbon. Its particles vary in diameter from about 10 to 40 nanometers and have a specific surface area of about 110 m 2 /gram. It may be prepared by flame hydrolysis of a hydrophilic silica as more fully described in Angew. Chem.
  • hydrophobic silica particles are admixed with the abrasive blasting agent in the proportion of at least about 0.1 and up to about 1.0% by weight thereof.
  • Another hydrophobic silica is Quso, marketed by DeGussa A.G.
  • Hydrophobic polysiloxanes preferably non- halogenated polysiloxanes, suitable for use in the blasting media hereof are commercially marketed by Dow Corning and General Electric.
  • the blast media of the present invention as constituted from the water soluble abrasive particles and antimicrobial agent as described above are useful for efficient cleaning or decoating of relatively soft substrates such as sensitive metals including aluminum or aluminum alloys or magnesium or composite substrates formed of plastic, masonry, stucco, plaster, ceramic or wood.
  • the blast media of the present invention are most useful in treating ceramic, aluminum, steel, including stainless steel substrates and the like and which are in the environment of food stuffs including internal structural components of food storage, handling and processing operations as well as the equipment or machinery which come into contact with food stuffs such as during processing, packaging, transport and handling such as during marketing of particular food items.
  • the invention also encompasses the addition of an antimicrobial agent to any type of blasting media including the water soluble blasting media described above and water insoluble blasting media including sand, plastic media, rice hulls, walnut shells, water insoluble alkali metal and alkaline earth metal salts such as calcium carbonate and the like.
  • the blast media containing abrasive particles and antimicrobial agent are preferably applied in commercial pressurized water streams and, more preferably, compressed air streams which contain water either added at the blast nozzle or externally therefrom for the purpose of controlling dust formation.
  • Blasting equipment _for the blast media of the present invention are commercially available.
  • the blast media flow rates through the nozzle typically range from about 0.5 to 15, desirably from about 1.0 to 10.0 lbs. per minute and under air pressures from 10 to 100 psi and water pressures for dust control typically ranging from about 10 psi and above.
  • a square foot aluminum panel is blasted with various blast media using the AccustripTM system at the following operating conditions: 60 psi blast air pressure, 4 lbs per minute media flow rate, 0.5 gpm water flow rate.
  • the blast media compositions are set forth in Table 1.
  • a potato-glucose agar medium (pH: 6.0) is steam-sterilized under elevated pressure and pipeted into petri dishes (diameter: 9 cm) in 25 ml portions, followed by coagulation.
  • a sample piece of the blasted aluminum sample (4 x 4 cm) is placed on the agar plate medium and 1 ml of a spore suspension of the fungi penicillium citrinum is uniformly sprayed on the test piece. After incubating at 28°C for 14 days, the growth of hyphae on the surface of the sample is examined and the mildew-resistance evaluated by the following three ranks.

Abstract

Matériau à projeter, destiné à nettoyer par sablage à l'air ou à l'eau des contaminants se trouvant sur une surface solide et à effectuer un traitement désinfectant secondaire sur ladite surface, qui contient des particules abrasives et un agent antimicrobien.
PCT/US1993/012336 1993-01-21 1993-12-22 Materiau a projeter contenant un desinfectant WO1994016835A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU59849/94A AU5984994A (en) 1993-01-21 1993-12-22 Blast media containing sanitizer

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US666093A 1993-01-21 1993-01-21
US006,660 1993-01-21

Publications (1)

Publication Number Publication Date
WO1994016835A1 true WO1994016835A1 (fr) 1994-08-04

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Application Number Title Priority Date Filing Date
PCT/US1993/012336 WO1994016835A1 (fr) 1993-01-21 1993-12-22 Materiau a projeter contenant un desinfectant

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AU (1) AU5984994A (fr)
WO (1) WO1994016835A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008074015A1 (fr) * 2006-12-14 2008-06-19 Church & Dwight Co., Inc. Milieu hydrosoluble contenant des agents anti-microbiens
WO2008132769A1 (fr) * 2007-04-24 2008-11-06 Bicar Jet Srl Produit abrasif détergent et désinfectant
US9272391B2 (en) 2011-05-25 2016-03-01 Nike, Inc. Sodium bicarbonate puck cleaning and painting

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3765923A (en) * 1970-12-14 1973-10-16 Hempels Skibsfarve Fab J C Process and composition for blast-cleaning and corrosion-protecting metal surfaces
US4125969A (en) * 1977-01-25 1978-11-21 A. Long & Company Limited Wet abrasion blasting
US5112406A (en) * 1991-12-03 1992-05-12 Church & Dwight Co., Inc. Process for removing coatings from sensitive substrates, and sodium sulfate-containing blasting media useful therein
US5160547A (en) * 1989-03-14 1992-11-03 Church & Dwight Co., Inc. Process for removing coatings from sensitive substrates, and blasting media useful therein

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3765923A (en) * 1970-12-14 1973-10-16 Hempels Skibsfarve Fab J C Process and composition for blast-cleaning and corrosion-protecting metal surfaces
US4125969A (en) * 1977-01-25 1978-11-21 A. Long & Company Limited Wet abrasion blasting
US5160547A (en) * 1989-03-14 1992-11-03 Church & Dwight Co., Inc. Process for removing coatings from sensitive substrates, and blasting media useful therein
US5112406A (en) * 1991-12-03 1992-05-12 Church & Dwight Co., Inc. Process for removing coatings from sensitive substrates, and sodium sulfate-containing blasting media useful therein

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008074015A1 (fr) * 2006-12-14 2008-06-19 Church & Dwight Co., Inc. Milieu hydrosoluble contenant des agents anti-microbiens
EP2120548A1 (fr) * 2006-12-14 2009-11-25 Church & Dwight Co., Inc. Milieu hydrosoluble contenant des agents anti-microbiens
EP2120548A4 (fr) * 2006-12-14 2012-08-29 Church & Dwight Co Inc Milieu hydrosoluble contenant des agents anti-microbiens
WO2008132769A1 (fr) * 2007-04-24 2008-11-06 Bicar Jet Srl Produit abrasif détergent et désinfectant
US9272391B2 (en) 2011-05-25 2016-03-01 Nike, Inc. Sodium bicarbonate puck cleaning and painting
US10105817B2 (en) 2011-05-25 2018-10-23 Nike, Inc. Sodium bicarbonate puck cleaning and painting

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