WO2000078448A1 - Compositions d'encapsulation, procedes et dispositifs de traitement de liquides repandus - Google Patents

Compositions d'encapsulation, procedes et dispositifs de traitement de liquides repandus Download PDF

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Publication number
WO2000078448A1
WO2000078448A1 PCT/US2000/017252 US0017252W WO0078448A1 WO 2000078448 A1 WO2000078448 A1 WO 2000078448A1 US 0017252 W US0017252 W US 0017252W WO 0078448 A1 WO0078448 A1 WO 0078448A1
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WO
WIPO (PCT)
Prior art keywords
particulate
encapsulant composition
superabsorbent polymer
polymer
liquid
Prior art date
Application number
PCT/US2000/017252
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English (en)
Inventor
Anthony M. Pierce
Original Assignee
Sustainable Technologies Corporation
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 Sustainable Technologies Corporation filed Critical Sustainable Technologies Corporation
Priority to AU56334/00A priority Critical patent/AU5633400A/en
Publication of WO2000078448A1 publication Critical patent/WO2000078448A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
    • B01J20/28014—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their form
    • B01J20/28026—Particles within, immobilised, dispersed, entrapped in or on a matrix, e.g. a resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/22—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising organic material
    • B01J20/26—Synthetic macromolecular compounds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
    • B01J20/28002—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their physical properties
    • B01J20/28004—Sorbent size or size distribution, e.g. particle size
    • 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
    • B08B7/0014—Cleaning by methods not provided for in a single other subclass or a single group in this subclass by incorporation in a layer which is removed with the contaminants
    • 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
    • C09K3/32—Materials not provided for elsewhere for absorbing liquids to remove pollution, e.g. oil, gasoline, fat

Definitions

  • the present invention relates generally to the containment and clean up of hazardous spills .
  • the present invention relates to methods, compositions and devices for encapsulating spills of substances such as acidic or biologic spills.
  • the containment of hazardous spills has been the subject of study for years. In many cases, containment is achieved utilizing a solid particulate material which is applied to the spill to absorb and encapsulate the hazardous material.
  • Certain compositions including polymers have been suggested for use in treating aqueous spills.
  • U.S. Patent Nos. 4,383,868 and 4,578,119 are illustrative of this background to the invention.
  • the present invention addresses these needs .
  • a hazardous aqueous spill which includes at least one particulate absorbent, along with a polymer matrix forming agent for forming an interpenetrating polymer network between particles of the absorbent upon contacting the spill, such that the encapsulant composition exhibits the capacity to form a solid unitary mass upon absorbing the spill.
  • the encapsulant composition has a polymer matrix forming composition that includes a water soluble crosslinkable agent, for example a polyol such as polyvinyl alcohol, and a water soluble crosslinking agent for crosslinking the crosslinkable agent to form the polymer matrix, for example borax and/or boric acid.
  • a water soluble crosslinkable agent for example a polyol such as polyvinyl alcohol
  • a water soluble crosslinking agent for crosslinking the crosslinkable agent to form the polymer matrix for example borax and/or boric acid.
  • these materials are compatible as a stable, homogeneous, flowable mixture.
  • dissolution of the crosslinkable agent and the crosslinking agent, and their subsequent interaction lead to the formation of the interpenetrating polymer network which binds the absorbent particles (e.g. superabsorbent polymer particles) together to form a conveniently-handled, unitary solid mass.
  • an encapsulant composition includes a first particulate superabsorbent polymer, the first superabsorbent polymer having a first absorption time, and a second particulate superabsorbent polymer, the second superabsorbent polymer having a second absorption time.
  • the second absorption time is at least about double (200% of) the first absorption time.
  • the first superabsorbent polymer exhibits an absorption time sufficiently high that the polymer absorbs 70% of its total capacity for deionized water in less than about 1 minute, and the second superabsorbent polymer has an absorption time sufficiently low that it reaches 70% of its deionized water absorption capacity at some time point after 5 minutes.
  • the first and second polymers are preferably polyacrylamide or polyacrylate superabsorbent polymers, and the encapsulant compositions can include mixtures thereof .
  • the present invention provides devices for encapsulating spills which include a pressurized canister containing the above-described encapsulant compositions, and having the capacity to dispense the encapsulant compositions therefrom as a forced stream of dry powder. Also provided are methods for treating spills, including biologic and acidic spills, using the above-described encapsulant compositions .
  • a highly effective device for treating aqueous spills is provided by a pressurized canister containing a free-flowing powder encapsulant composition including powder form superabsorbent polymer, which can dispense the powdered encapsulant composition from the canister under pressure.
  • the powder form encapsulant composition is at least 70% by weight comprised of particles having a particle diameter of less than 500 microns, the encapsulant composition including at least one powder form superabsorbent polymer and preferably a mixture of at least two powder form superabsorbent polymers .
  • Such devices are effective to broadcast the encapsulant composition rapidly and evenly over the spill, so as to achieve absorption and encapsulation of the aqueous substance.
  • the fine powder form of these preferred encapsulant compositions facilitates the formation of a solid, unitary mass upon absorption of the aqueous liquid, so as to expedite cleanup of the spill.
  • Desirable superabsorbent polymers in this embodiment include acrylic and acrylamide polymers.
  • the use of argon gas to pressurize the canisters of encapsulant- containing devices as described above has been found to be particularly advantageous.
  • One object of the present invention is to provide improved compositions for encapsulating hazardous liquid substances.
  • Another object of the present invention is to provide improved methods for encapsulating hazardous liquid substances.
  • FIG. 1 shows a device for treating a spill of an aqueous liquid in accordance with the invention.
  • the present invention provides compositions, methods, and devices for treating hazardous spills.
  • the invention provides and utilizes free-flowing encapsulant compositions which incorporate at least one particulate absorbent.
  • the absorbent in accordance with the present invention is most advantageously a particulate (e.g. granular or powdered) superabsorbent polymer.
  • Such polymers are substantially water-insoluble, but water swellable polymers, which form hydrogels upon contacting aqueous liquids.
  • superabsorbent polymer types are known and are suitable for use in the present invention.
  • These hydrogel- forming absorbent polymers will typically have anionic functional groups such as sulfonic acid and/or carboxy groups .
  • Illustrative polymers suitable for use in the invention include those which are prepared from polymerizable, unsaturated, acid-containing monomers. Such monomers include the olefinically unsaturated acids and anhydrides that contain at least one carbon to carbon olefinic double bond. These monomers can be selected, for example, from olefinically unsaturated carboxylic acids and acid anhydrides, olefinically unsaturated sulfonic acids, and mixtures thereof.
  • Non-acid monomers may also be included, usually in minor amounts, in preparing the hydrogel-forming absorbent polymers herein.
  • Such non-acid monomers can include, for example, the water-soluble or water- dispersible esters of the acid-containing monomers, as well as monomers that contain no carboxylic or sulfonic acid groups.
  • Optional non-acid monomers can thus include monomers containing functional groups selected from carboxylic acid or sulfonic acid esters, hydroxyl groups, amide groups, amino groups, nitrile groups and quaternary ammonium salt groups.
  • These non-acid monomers are well-known materials. For additional information as to such monomers, reference can be made for example to U.S. Pat. Nos.
  • Olefinically unsaturated carboxylic acid and carboxylic acid anhydride monomers include the acrylic acids typified by acrylic acid itself, methacrylic acid, ethacrylic acid, ⁇ -chloroacrylic acid, ⁇ - cyanoacrylic acid, ⁇ -methylacrylic acid (crotonic acid) , sorbic acid, angelic acid, cinnamic acid, p- chlorocinnamic acid, itaconic acid, citroconic acid, esaconic acid, glutaconic acid, aconitic acid, maleic acid, fumaric acid, tricarboxyethylene, maleic acid anhydride, and the like.
  • Olefinically unsaturated sulfonic acid monomers include aliphatic or aromatic vinyl sulfonic acids such as vinylsulfonic acid, allyl sulfonic acid, vinyl toluene sulfonic acid and styrene sulfonic acid; acrylic and mothacrylic sulfonic acid such as sulfoethyl acrylate, sulfoethyl methacrylate, sulfopropyl acrylate, sulfopropyl methacrylate, 2- hydroxy-3-methacryloxypropyl sulfonic acid and 2- acrylamide-2-methylpropane sulfonic acid.
  • Preferred hydrogel-forming absorbent polymers for use in the present invention contain carboxy and/or carboxamide groups .
  • These polymers include hydrolyzed starch-acrylonitrile graft copolymers, partially neutralized starch-acrylonitrile graft copolymers, starch-acrylic acid graft copolymers, partially neutralized starch-acrylic acid graft copolymers, saponified vinyl acetate-acrylic ester copolymers, hydrolyzed acrylonitrile or acrylamide copolymers, slightly network crosslinked polymers of any of the foregoing copolymers, partially neutralized polyacrylic acid, and slightly network crosslinked polymers of partially neutralized polyacrylic acid. Examples of these polymer materials are disclosed in U.S. Pat. Nos. 3,661,875, 4,076,663, 4,093,776, 4,666,983, and 4,734,478.
  • One preferred polymer class for use herein includes partially neutralized polyacrylic acids (e.g. poly (sodium acrylate/acrylic acid) polymers).
  • the hydrogel-forming absorbent polymers can be slightly network crosslinked.
  • Network crosslinking serves to render the polymer substantially water-insoluble and, in part, determines the absorptive capacity and extractable polymer content characteristics of the precursor particles and the resultant macrostructures .
  • improved encapsulant compositions can be provided utilizing a blend of two superabsorbent polymers, wherein one of the polymers has an absorption time significantly greater than the other.
  • the absorption time for the superabsorbent refers to the period of time required for the superabsorbent polymer to absorb 70% of its total capacity (by weight) for deionized water when immersed in deionized water.
  • two superabsorbent polymers will be included in the encapsulant composition, wherein a first of the polymers has a first absorption time, and a second of the polymers has a second absorption time at least double (200% of) the first absorption time. Still further preferences exist wherein the second absorption time is at least about 500% that of the first, and/or wherein the first polymer has a absorption time of less than about 2 minutes .
  • advantageous encapsulant compositions are provided wherein the first superabsorbant has an absorption time of less than about 1 minute, and the second superabsorbent polymer has an absorption time of greater than about 5 minutes , or even greater than about 10 minutes.
  • Such mixtures provide compositions exhibiting controlled and effective absorption characteristics, more advantageous than those demonstrated by either superabsorbent polymer alone.
  • Faster acting superabsorbents serve to control the spread of the spill while relatively slower acting superabsorbents assist in ensuring that a large portion or all of the spill is taken up by the encapsulant composition while forming a solid unitary mass upon final absorption of the spill.
  • Using two such superabsorbents in combination also allows encapsulant formulations to be tailored for performance in absorbing specific types of spills.
  • More preferred encapsulant compositions include both polyacrylamide and polyacrylic (e.g. poly(C ⁇ -C 6 alkyl) acrylic acid or esters thereof such as Ci-C ⁇ alkyl-poly (C ⁇ -C 6 alkyl) acrylates ) superabsorbent polymers, and in one preferred form include at least two superabsorbent polyacrylamide polymers, and at least two superabsorbent polyacrylic polymers, wherein the polyacrylamide polymers have faster and slower absorption rates relative to each other as discussed above, and the polyacrylic polymers also have faster and slower absorption rates relative to each other as discussed above.
  • polyacrylamide and polyacrylic e.g. poly(C ⁇ -C 6 alkyl) acrylic acid or esters thereof such as Ci-C ⁇ alkyl-poly (C ⁇ -C 6 alkyl) acrylates
  • superabsorbent polymers in one preferred form include at least two superabsorbent polyacrylamide polymers, and at least two superabsorbent polyacrylic polymers,
  • Preferred superabsorbent polymers will exhibit the capacity to absorb at least 20 times their own weight in deionized water, more preferably at least about 100 times their own weight in deionized water.
  • particle size of the superabsorbent polymer is highly important to the function of the encapsulant composition, particularly in providing free-flowing compositions which can be spray-applied and which form solid, unitary patties after contacting the aqueous spill.
  • superabsorbent polymer powders desirably wherein at least 70% of the particles have a particle diameter less than about 500 microns, are employed with preference. It is further preferred that 80% or more of the superabsorbent polymer particles have a particle diameter less than 500 microns.
  • particle size for such powders is determined by sieve size analysis.
  • a hydrogel-forming absorbent polymer particle that is retained on a standard #35 sieve with 500 micron openings is considered to have a particle size greater than 500 microns
  • a hydrogel-forming absorbent polymer particle that passes through the #35 sieve with 500 micron openings is considered to have a particle size less than 500 microns.
  • each superabsorbent polymer type will comprise at least 1% by weight of the total amount of superabsorbent polymer in the composition, more typically at least about 5% by weight, and most preferably at least about 10% by weight.
  • the encapsulant composition also includes an agent for forming an interpenetrating network between and among the absorbent particles.
  • an agent can include multiple substances.
  • it can include a crosslinkable agent along with a crosslinking agent effective to crosslink the crosslinkable agent.
  • These agents when in the dry state, do not react significantly with one another. However, upon contacting the aqueous spill, these agents are taken up in the spill by dissolution, suspension or otherwise, and react with one another to form the interpenetrating polymer network between the absorbent particles.
  • This network is preferably also a polymer hydrogel, and serves to bind the absorbent particles to one another and thereby form a unitary mass that can be removed from the spill site.
  • interpenetrating hydrogel is beneficially dehydrated by the action of the particulate absorbent, leading to increased firmness of the interpenetrating gel and convenience in handling the absorbed mass.
  • an interpenetrating network can advantageously serve to entrain any other solids that may have been present in the spill, for example stomach contents in the case of vomit, or cells or tissues in the case of other biological fluids such as blood.
  • Preferred crosslinkable agents include polyols such as polyvinyl alcohols, and polysaccharides bearing free hydroxyl groups, such as gums, e.g. guar gum, xantham gum, and the like. Water soluble silicates, such as water soluble sodium silicates, may also be used. Such crosslinkable agents will typically be included in an amount of about 0.1% to about 20% of the encapsulant composition by weight, more preferably about 0.1% to about 10%.
  • Preferred crosslinking agents include those agents exhibiting the capacity to crosslink polyols to form an interpenetrating network between the absorbent particles.
  • the encapsulant compositions includes a boron-containing compound such as borate, boric acid, or a mixture thereof, to effect crosslinking of the polyol.
  • Such crosslinking agents will typically be included in an amount of about 0.1% to about 20% of the encapsulant composition by weight, more preferably about 0.1% to about 10%.
  • boric acid and borax are known disinfectants and antifungals
  • borax is a known deodorant compound. These materials may serve beneficially in these capacities as well.
  • Preferred encapsulant compositions of the invention also include a flow agent which acts to inhibit adherence among particles of the superabsorbent polymer in the dry state, and thereby increase the overall flowability of the composition.
  • This flow agent will typically be incorporated at a level of about 0.1% to about 10% by weight relative to the weight of the superabsorbent polymer (s) in the composition, more typically about 0.5% to about 5%.
  • Such flow agents can be solids, for example as in the case of silica, or suitable fluid lubricants.
  • the composition may include other additives conventional to encapsulant compositions. For example, these may include surfactants, other absorbent particulates , and the like.
  • the encapsulant compositions of the invention are applied to an aqueous liquid spill, whereupon they absorb and encapsulate the liquid and advantageously form a unitary solid mass which can then be removed from the spill area.
  • the unitary solid mass in accordance with the invention may for instance appear as a continuous mass to the naked eye, or may appear as an agglomerated mass of particles. In any event, it is desired that this solid unitary mass form, as opposed to a fluid mass or individual particles .
  • the encapsulant composition to the spill may be achieved by any suitable means .
  • the composition can be sprinkled or sprayed onto the spill.
  • the encapsulant composition has flow properties rendering it a sprayable mass so as to evenly distribute the mass upon the spill.
  • the encapsulant composition upon application to the spill, the encapsulant composition will swell as it absorbs the liquid, whereupon the composition stably incorporates the liquid and will not release the same under normal handling conditions.
  • the time necessary for encapsulation of the spill will of course vary based upon the particular encapsulant composition used and the substance to be encapsulated. Typically, the encapsulation will occur within a span of about 1 to 60 minutes. In that period, the preferred compositions form a unitary, solid mass which can be taken up from the spill site.
  • spills which can be treated in accordance with the invention, they may be solid surface- or liquid-bound spills.
  • liquids are treatable in accordance with the invention. These include for example aqueous liquids such as biological fluids, for instance vomit, urine, blood, and the like, as well as other chemical hazards such as acidic or caustic spills.
  • Acidic spills can include, for example, spills of aqueous acids, especially strong acids such as hydrochloric, hydrobromic, sulfuric or nitric acid.
  • the apparatus 10 includes a pressurized canister 11 equipped to dispense a powder under pressure.
  • a free flowing encapsulant composition 12 is contained in the vessel.
  • the canister includes, for example, a nozzle 13 and a trigger 14 as is conventional for such equipment.
  • the pressure within the canister 11 is typically about 50 to about 250 psi, and the canister is pressurized using a suitable gas, for example air or an inert gas such as nitrogen or argon.
  • a suitable gas for example air or an inert gas such as nitrogen or argon.
  • pressurization with argon gas provides a particularly advantageous device, more readily and uniformly dispensing the powder compositions from the pressure vessel even under relatively lower pressure conditions, for example about 150 psi or lower, e.g. in the range of about 50 psi to about 150 psi.
  • An encapsulant composition of the invention was prepared by mixing the materials specified in Table 1. All materials except sodium hypochlorite were added as dry materials, and mixed for about 1 minute at high speed using an electric mixer equipped with an angled wide-blade turbine. While mixing at high speed, the hypochlorite solution was slowly added to the dry components and mixed for about 5 minutes more. After two days at room temperature, drying was completed in a 90°C oven for 15 hours. The sample was then placed in a capped glass bottle.
  • the encapsulant composition prepared in Example 1 was tested in the following fashion. A known mass of a 40% water / 60% ethylene glycol solution was added to a wide mouth glass dish. A known mass of the encapsulant composition was then added to the surface of the solution. Sufficient absorbent was added to absorb all of the test liquid. The encapsulant to test liquid mass ratio was then calculated, and found to be 1:9. In addition, it was observed that the encapsulant composition formed a solid, relatively firm patty.
  • Another encapsulant composition of the invention was prepared by mixing the materials specified in Table 2. The materials were mixed for about 5 minutes at using an electric mixer as described in Example 1. The sample was then placed in a capped glass bottle.
  • Example 3 The encapsulant composition prepared in Example 3 was tested in a fashion similar to that described in Example 2, except the test liquid was 36% aqueous hydrochloric acid. A relatively firm patty was formed. The encapsulant to test liquid weight ratio was about 1:2.

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Analytical Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Environmental & Geological Engineering (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Public Health (AREA)
  • Materials Engineering (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

L'invention concerne des compositions préférées d'encapsulation, ainsi que des dispositifs et procédés de traitement de liquides répandus. Des compositions préférées comprennent un polymère particulaire, extrêmement absorbant, ainsi qu'un agent destiné à former un réseau polymère d'interpénétration lors de la mise en contact d'un produit aqueux répandu avec des particules de liaison du polymère extrêmement absorbant, aux fins d'obtention d'une masses unitaire pouvant s'enlever. Des compositions préférées comprennent également un mélange d'au moins deux polymères extrêmement absorbants, dont l'un absorbe l'eau d'une manière nettement plus rapide que l'autre. L'invention concerne encore des dispositifs d'application par vaporisation de telles compositions d'encapsulation, ces dispositifs comprenant une cartouche conçue pour vaporiser une composition particulaire, ainsi qu'une composition en poudre, d'encapsulation, telle que décrite et contenue dans la cartouche. L'invention concerne enfin des procédés de traitement de liquides répandus sur lesquels on applique les compositions d'encapsulation décrites.
PCT/US2000/017252 1999-06-22 2000-06-22 Compositions d'encapsulation, procedes et dispositifs de traitement de liquides repandus WO2000078448A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU56334/00A AU5633400A (en) 1999-06-22 2000-06-22 Encapsulant compositions, methods and devices for treating liquid spills

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US33826399A 1999-06-22 1999-06-22
US09/338,263 1999-06-22

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WO2000078448A1 true WO2000078448A1 (fr) 2000-12-28

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10114169A1 (de) * 2001-03-22 2002-10-02 Reinmar Peppmoeller Silikathaltige, Wasser und wäßrige Flüssigkeiten speichernde, anionische Polymere sowie deren Herstellung und Verwendung
WO2009011987A2 (fr) * 2007-06-09 2009-01-22 Honeywell International Inc Compositions, procédés et dispositifs pour le contrôle et le nettoyage d'écoulements accidentels dangereux
WO2010110898A1 (fr) 2009-03-27 2010-09-30 Milliken & Company Composition nettoyante en poudre améliorée
CN102639229A (zh) * 2009-09-28 2012-08-15 熊海山 吸附合成物及其方法
WO2018169674A1 (fr) * 2017-03-16 2018-09-20 The Procter & Gamble Company Procédés de fabrication de compositions de produit contenant un produit d'encapsulation

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US5721295A (en) * 1992-03-05 1998-02-24 Chemische Fabrik Stockhausen Gmbh Polymer composition, absorbent composition, their production and use
US5736595A (en) * 1993-05-03 1998-04-07 Chemische Fabrik Stockhausen Gmbh Polymer composition, absorbent material composition, their production and their use
US5847031A (en) * 1993-05-03 1998-12-08 Chemische Fabrik Stockhausen Gmbh Polymer composition, absorbent composition, their production and use

Patent Citations (3)

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US5721295A (en) * 1992-03-05 1998-02-24 Chemische Fabrik Stockhausen Gmbh Polymer composition, absorbent composition, their production and use
US5736595A (en) * 1993-05-03 1998-04-07 Chemische Fabrik Stockhausen Gmbh Polymer composition, absorbent material composition, their production and their use
US5847031A (en) * 1993-05-03 1998-12-08 Chemische Fabrik Stockhausen Gmbh Polymer composition, absorbent composition, their production and use

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10114169A1 (de) * 2001-03-22 2002-10-02 Reinmar Peppmoeller Silikathaltige, Wasser und wäßrige Flüssigkeiten speichernde, anionische Polymere sowie deren Herstellung und Verwendung
US8404920B2 (en) 2007-06-09 2013-03-26 Honeywell International Inc. Compositions, methods and devices for control and clean-up of hazardous spills
WO2009011987A3 (fr) * 2007-06-09 2009-05-22 Honeywell Int Inc Compositions, procédés et dispositifs pour le contrôle et le nettoyage d'écoulements accidentels dangereux
JP2010530258A (ja) * 2007-06-09 2010-09-09 ハネウェル・インターナショナル・インコーポレーテッド 危険流出物の制御と浄化のための組成物、方法、および装置
US8309034B2 (en) 2007-06-09 2012-11-13 Honeywell International Inc. Compositions, methods and devices for control and clean-up of hazardous spills
WO2009011987A2 (fr) * 2007-06-09 2009-01-22 Honeywell International Inc Compositions, procédés et dispositifs pour le contrôle et le nettoyage d'écoulements accidentels dangereux
US8790587B2 (en) 2007-06-09 2014-07-29 Honeywell International Inc. Compositions, methods and devices for control and clean-up of hazardous spills
KR101492462B1 (ko) * 2007-06-09 2015-02-12 허니웰 인터내셔널 인코포레이티드 유해한 유출물의 제어 및 청소를 위한 조성물, 방법 및 장치
KR101536638B1 (ko) * 2007-06-09 2015-07-15 허니웰 인터내셔널 인코포레이티드 유해한 유출물의 제어 및 청소를 위한 조성물, 방법 및 장치
WO2010110898A1 (fr) 2009-03-27 2010-09-30 Milliken & Company Composition nettoyante en poudre améliorée
US8138135B2 (en) 2009-03-27 2012-03-20 Milliken & Company Powder cleaning composition
CN102639229A (zh) * 2009-09-28 2012-08-15 熊海山 吸附合成物及其方法
US20120289607A1 (en) * 2009-09-28 2012-11-15 Haishan Xiong Absorbent composition and methods thereof
WO2018169674A1 (fr) * 2017-03-16 2018-09-20 The Procter & Gamble Company Procédés de fabrication de compositions de produit contenant un produit d'encapsulation

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