EP1633181A2 - Agents mouillants de regeneration a ramifications multiples pour traiter des sols sableux pour une reduction a long terme d'hydrorejets - Google Patents

Agents mouillants de regeneration a ramifications multiples pour traiter des sols sableux pour une reduction a long terme d'hydrorejets

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Publication number
EP1633181A2
EP1633181A2 EP04753432A EP04753432A EP1633181A2 EP 1633181 A2 EP1633181 A2 EP 1633181A2 EP 04753432 A EP04753432 A EP 04753432A EP 04753432 A EP04753432 A EP 04753432A EP 1633181 A2 EP1633181 A2 EP 1633181A2
Authority
EP
European Patent Office
Prior art keywords
additive formulation
soil additive
compound
group
hydrophobic
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP04753432A
Other languages
German (de)
English (en)
Other versions
EP1633181A4 (fr
Inventor
Randy D. Petrea
Christopher A. Byrd
Shirley A. Whiteside
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Milliken and Co
Original Assignee
Milliken and Co
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
Priority claimed from US10/461,799 external-priority patent/US6857225B2/en
Application filed by Milliken and Co filed Critical Milliken and Co
Publication of EP1633181A2 publication Critical patent/EP1633181A2/fr
Publication of EP1633181A4 publication Critical patent/EP1633181A4/fr
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • C09K17/00—Soil-conditioning materials or soil-stabilising materials
    • C09K17/14—Soil-conditioning materials or soil-stabilising materials containing organic compounds only
    • C09K17/18—Prepolymers; Macromolecular compounds
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G20/00—Cultivation of turf, lawn or the like; Apparatus or methods therefor
    • 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
    • C09K17/00—Soil-conditioning materials or soil-stabilising materials
    • C09K17/14—Soil-conditioning materials or soil-stabilising materials containing organic compounds only
    • 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
    • C09K17/00—Soil-conditioning materials or soil-stabilising materials
    • C09K17/14—Soil-conditioning materials or soil-stabilising materials containing organic compounds only
    • C09K17/16—Soil-conditioning materials or soil-stabilising materials containing organic compounds only applied in a physical form other than a solution or a grout, e.g. as platelets or granules

Definitions

  • This invention relates to certain novel formulations of turf additives that act in such a manner as to permit proper amounts of moisture to contact root systems in order to reduce dry spots within highly managed turf areas and/or lawns.
  • the inventive formulation comprising multi -branched surfactant compounds with both hydrophobic and hydrophilic constituents within each branch attached to an oxygen-containing polyfunctional base compound permits effective moisture penetration through such localized dry spots for sustained grass growth therein.
  • multi-branched wetting agents provide sustained moisture penetration over a sustained period of time since the individual branches of such compounds may become dissociated from its base polyfunctional compound.
  • Water repellent soil whether in sandy areas or not, have proven to be the most difficult conditions in which plant life may be grown. Such a condition basically prevents or drastically reduces the ability of water to infiltrate from the ground level to subterranean root systems.
  • environmental problems may occur as well due to surface runoff from rain, thereby transporting pesticides and/or fertilizers from the desired agriculture locations to ponds, lakes, reservoirs, or other undesirable water sources, as well as increasing the chances of ground water contamination therefrom.
  • Water content and soil particle size contribute to such water repellency issues, in addition to the presence of certain organic matter therein (humic acid, for example, as discussed in greater detail below).
  • Such organic matter basically causes water repellency in the specific soils by imparting hydrophobic properties thereto while adhering to the soil particles themselves via hydrophilic constituents present within the particular organic matter.
  • localized dry spots are a distinct problem within highly managed turf areas and/or lawns, in particular those with sandy soils, primarily for aesthetic reasons. Such dry spots are the result of the development of areas of varying degrees of water repellency within and at the surface of the target soil. Plant water usage is critical to sustained plant growth; however, the existence of such localized dry spots creates a problem with nonuniformity of water supply to treated grasses over time.
  • hydrophobicity of sand creates certain problems with regard to pooling water after raining (as one example) which in turn causes unsightly areas either within highly sandy yards, ballparks, or beaches, or to provide water penetration in dry sandy conditions in order to possibly sustain plant-life therein (such as arid desert-like areas). Reduction in such water repellency would thus be helpful in maintaining, at least, better aesthetics for such sandy areas, as well as the possibility for permitting or promoting the growth of sustained plant life in such dry, barren areas. Without intending to be bound to any particular scientific theory, it is believed that such water repellency areas within sandy soils are the result of the presence of humic substances and their attachment to soil components, particularly in large accumulations at the topsoil surface.
  • Humus is degraded plant and animal matter (by microbial organisms) and is basically the organic portion of soil that comprises the necessary nutrients to sustain plant growth and life therein.
  • One byproduct of such humus is humic acid (simply the acidic form of humus, basically a mix of various different materials).
  • Humic acid and other like substances although necessary for the sustenance of plant life as it provides the aforementioned nutrients to root systems, unfortunately also appears to create problems within sandy soils, most particularly the creation of a waxy organic, water-repellent coating upon binding to and with soil components
  • such a coating is permitted to accumulate over a long period of time, such as the aforementioned 6 to 18 month period, and particularly at the topsoil surface, the coating becomes highly water repellent in nature and uniform plant water use is difficult to achieve.
  • amphiphylic humic acid or other like humic substance
  • adhering by its hydrophilic portion, to the hydrophilic sites within the sandy soil, permitting the highly hydrophobic ends to extend (similar in nature to a micelle).
  • Such a coating is thus hydrophobic in nature and, when present as a thorough coating over such surface portions, again, tends to either drive water away or facilitate water loss by preventing moisture from passing through to the subterranean roots of any plants therein. If the water remains at the surface, evaporation is also facilitated as such moisture cannot easily penetrate the hydrohphobic soil surface.
  • Such a problem exists, as noted above, not only within greens, but also within lawns and pastures (as merely some examples of such trouble areas).
  • a long-term (e.g., greater than 4 months, or a season) formulation applied in a single application or in split applications spaced 7 to 10 days apart and/or method for providing water repellency improvements are thus unavailable to the pertinent industry at this time.
  • Another manner of reducing such dry spot problems has been increasing watering itself.
  • such a method is labor intensive and, in many areas where water is not plentiful, use for aesthetic purposes (e.g., lawns, greens, and the like), is preferably kept at a minimum as compared to other more important purposes (e.g., drinking water).
  • this invention concerns a soil additive formulation and/or method of treating sandy areas, soils, or areas including both sand and soil (such as lawns, greens, pastures, beaches, dry desert-like areas, and the like), wherein said soil additive formulation comprises a multi-branched oxygen-containing polyfunctional compound-based surfactant exhibiting both hydrophilic and hydrophobic constituents within each branch thereof, and wherein such compound comprises at least three, preferably, five or greater, such branches thereon, and from 0.1-99%) (could be 0 - 90%>) by weight of at least one other compound that further actively lowers the surface tension of humic acid waxy coatings from hydrophobic sand particles.
  • soil additive formulation comprises a multi-branched oxygen-containing polyfunctional compound-based surfactant exhibiting both hydrophilic and hydrophobic constituents within each branch thereof, and wherein such compound comprises at least three, preferably, five or greater, such branches thereon, and from 0.1-99%) (could be 0 - 90%>) by weight of at
  • Such a formulation may also comprise a copolymer exhibiting both hydrophilic and hydrophobic portions for reaction with the hydrophobic portions of such hydrophobic sand particles in order to further provide hydrophilic extensions therefrom to facilitate topsoil surface tension reductions for effective moisture penetration.
  • a method for reducing localized dry spot formation within lawns or greens by providing long- term wetting via single-application (and/or split applications spaced 7 to 10 days apart) formulations and treatments comprising the application of a soil additive formulation to a target lawn or green, wherein said soil additive formulation comprises the same multi- branched surfactant compound as noted above.
  • Such a composition and method of treating sandy areas may thus be utilized for the provision of moisture penetration benefits in sandy areas alone.
  • the sandy area a beach, for example
  • the sandy area may be modified to permit water penetration therein, to prevent unsightly water pools, for example, after raining, or to dry desert-like areas in order to permit water penetration to sustain root systems of plant- life which would not grow otherwise.
  • the inventive formulation may either be applied in liquid form, pellet form, or granular form to the selected treated area.
  • the inventive formulation, in terms of composition thus requires at least one multi- branched oxygen-containing polyfunctional compound-based wetting agent.
  • Such a polyfunctional compound may be a polyol, polycarboxyhc acid, or lactone (the ring structure of which will open upon reaction to provide the necessary reactive sites for surfactant addition thereto), wherein the moieties include highly reactive end groups for reaction with surfactant-like groups to form the desired branches therein.
  • the oxygen-containing functionalities oxygen alone, or as part of a carboxylic acid group
  • polyol for this invention, basically covers any compound with at least three hydroxyl moieties thereon; likewise; polycarboxyhc acid encompasses compounds having at least three such acid moieties present thereon; and lactone is a heterocyclic compound with at least two oxygens therein.
  • polyols suitable for this purpose include, without limitation, tri- to octa-hydric alcohols such as pentaerythritol, diglycerol, ⁇ -methylglucoside, sorbitol, xylitol, mannitol, erythritol, dipentaerythritol, arabitol, glucose, sucrose, maltose, fructose, mannose, saccharose, galactose, leucrose, and other alditol or sugar molecules, polybutadiene polyols, castor oil- derived polyols; hydroxyalkyl methacrylate copolymers, hydroxylalkyl acrylate polymers, polyvinyl alcohols, glycerine, glycerol (a/k/a glycerine), 1,1,1-trimethylolpropane; 1,1,1- trimethylolethane; 1,2,6-hexanetriol, and buta
  • the wetting agent initially exists as a single compound
  • the wetting agent thus exhibits excellent ability to provide the necessary water adhesion to the hydrophobic surface of the water repellent soil via the hydrophobic groups of the surfactant itself with the hydrophilic groups free to provide the beneficial wetting characteristics, and, even upon such above-noted degradation, will still exhibit continued, effective wetting, and thus water transport, through the hydrophobic soil. Any adhered water droplets will be pulled into the sand and/or soil by further adhesion by other particles or through cohesion with other water droplets.
  • a wetting agent effectively permits appreciable and necessary amounts of moisture to penetrate the topsoil for beneficial moisture supply to the subterranean roots on a consistent and continuous basis for a relatively long period of time.
  • the multi-branched aspect of this compound permits degradation of the compound without losing any appreciable ability to provide continued wetting characteristics within the targeted soils.
  • a single application or a split application spaced 7 to 10 days apart accords consistent, at least effective, wetting, and moisture penetration without any need for further labor-intensive and possibly costly applications of treatment formulations.
  • Such a wetting agent may be of any type as broadly described above, that provides the above-discussed water movement through function of the multi -branched structure.
  • such a wetting agent may be chosen from the class of compounds that are alditol-based (as the most preferred type of polyfunctional compound base), thus having five or more free oxygens for reaction with surfactant-type constituents to form the desired multiple branches thereon.
  • the free constituents exhibit the necessary surfactant-like wetting benefits on a continuous basis.
  • the compounds that meet such a description are broad, and, heretofore, have not been utilized for such soil treatment purposes.
  • Non-limiting, preferred compounds for this purpose include the following compounds, all of which include the necessary alditol base structure.
  • surfactant- type compounds are reacted with the free oxygens of the alditol base structure.
  • This can be accomplished in any number of ways, most notably through the alkoxylation of polyfunctional reactive hydrogen-containing materials wherein each reactive hydrogen- containing site include alkylene oxide moieties, such as, for instance, and most preferably, ethylene oxide (EO; a/k/a ethyleneoxy), propylene oxide (PO; a/k/a propyleneoxy), and, to a lesser extent, butylenes oxide (BO; a/k/a butyleneoxy) in a ratio of EO:PO or BO of from 5:95 to 95:5 and the combined molecular weight of EO+ PO or BO is from 300 to 20,000, preferably from 500 to 10,000, such that each branch becomes a typical wetting species.
  • alkylene oxide moieties such as, for instance, and most preferably, ethylene oxide (EO; a/k/a ethyleneoxy), propylene oxide (PO; a/k/a prop
  • the soil additive formulation may be entirely comprised of such a wetting agent or agents, in one potentially preferred embodiment, or, the wetting agent(s) may be comprised of from 0.1-99%) by weight of such a wetting agent; preferably from 1-99% by weight; more preferably from about 5-95% by weight; more preferably from about 10-90%) by weight, with the remainder a mix of possible additives as noted below.
  • the wetting agent(s) may be comprised of from 0.1-99%) by weight of such a wetting agent; preferably from 1-99% by weight; more preferably from about 5-95% by weight; more preferably from about 10-90%) by weight, with the remainder a mix of possible additives as noted below.
  • it is preferable to include at least one secondary compound within the formulation for further lowering of the surface tension at the topsoil surface which is also compatible with the aforementioned required multi-branched wetting agent. The lowering of the surface tension allows more rapid penetration of the branched wetter into the soil profile.
  • Such a secondary compound can be an alkoxylated (preferably ethoxylated) alcohol
  • surfactant such as a branched or unbranched C 6 -C 60 alcohol alkoxylate (preferably, again, ethoxylate) (for utilization with the aforementioned multi-branched wetting agent), or alkoxylated (preferably ethoxylated) C 8 -C 40 fatty acid (for utilization in combination with the aforementioned multi-branched wetting agent).
  • secondary compounds can also be silicone surfactants or fluorosurfactants which are widely known by those skilled in the art to reduce surface tension.
  • Such compounds may be branched or unbranched in configuration.
  • Examples of preferred types of alcohol alkoxylates for this purpose include C 6 - 6 o alkyl,alkenyl or alkylaryl EO/PO surfactants, linear or branched, and secondary or primary hydroxyl in type, including mixtures of surfactants comprising from 95 to 1%> by weight of at least one surfactant selected from polyalkylene oxide compounds with the general formula:
  • Suitable secondary surfactants also include carboxylic and dicarboxylic esters of the general formula:
  • the surface tension of such a surface-active compound (or compounds) should in effect be below the general level of such a humic substance waxy coating, thus less than about 60 dynes/cm 2 , more preferably less than 40 dynes/cm 2 .
  • tridecyl alcohol (8 EO), and coconut fatty acid (9 EO) are preferred.
  • the aforementioned copolymer wetting agents provide beneficial properties to the inventive formulations through the binding of the more hydrophobic portions (propylene oxide, or PO, monomers, for example) thereof to the hydrophobic ends of the accumulated humic acids, and the subsequent, or simultaneous, binding of the more hydrophilic portions (ethylene oxide, or EO, for example) to the wetting agents.
  • Such a copolymer component is not necessary for proper functioning of the inventive formulation in every instance, although its presence may be desired in an effort either to increase the penetration of the multi- branched wetting agents or, potentially, to reduce the amount of humic acid removal compounds (which may be expensive or difficult to find in large quantities) within the soil (and/or turf) additive formulation and still provide an effective manner of reducing localized dry spots within the target lawn and/or green.
  • Such a copolymer may thus be of any length and molecular weight with a preferred molecular weight of between 1000 and 15000, more preferably from about 2000 to about 3500, and most preferably from about 2750 to about 3250.
  • Such a copolymer is available from BASF under the family of tradenames of PLURONIC®.
  • Such copolymer should be present in an amount of from about 1 to about 85%o by weight of the entire formulation, more preferably from about 20 to about 80%>, and most preferably from about 55 to about 75%>.
  • a humic acid removal compound such as those described in U.S. Pat. No. 6,481,153, to Petrea et al., herein entirely incorporated by reference, as well as certain commercially available products, including, without limitation, CASCADE®, Primer 604 (from Aquatrols), and the like.
  • Most preferred for such a supplemental purpose are succinic acid salts and/or long chain salts and polyfunctional acid salts, as taught within the Petrea et al. patent noted above.
  • Such an inventive formulation is one example of a soil additive that provides the desired long-term wetting (and potential topsoil humic acid removal) that is necessary to effectuate the reduction in dry spot formation within vegetative areas.
  • the aim of this invention is to lower the surface tension of humic acid accumulations on topsoil by reacting with the hydrophobic extensions of such an acid coating and permitting moisture transport through such a coating for a relatively long period of time on a continuous basis. This result is thus viewed in comparison with other types of soil treatments over at least 4 months straight. Such was performed and delineated and discussed below to show the degree of long-term, consistent, wetting heretofore unavailable to the soil and turf treatment industry.
  • inventive formulations may include any other standard components for lawn, garden, or other vegetation treatment, including, further wetting agents, cloud point raising emulsifiers known to those skilled in the art such as polyalkylglucosides, or colorants (for aesthetic purposes or for application identification), perfumes, water, electrolytes, fertilizer, pesticides, growth hormones, minerals, spray pattern indicators, and the like.
  • plant and grass nutrients such as fertilizers, minerals, and/or growth hormones, as well as spray pattern indicators (such as taught within U.S. Pat. No. 5,620,943 to Brendle).
  • test sandy soil samples were taken from each test plot and were characterized by a molarity of ethanol droplet method.
  • ethanol standards were made for use in the MED(Molarity of ethanol droplet test) through the production of 1M, 2M, 3M, and 4M solutions of ethanol using absolute 200 proof ethanol.
  • a 15mm petri dish with one eighth of an inch of the test sand was used for the MED test.
  • Ten drops of distilled water were placed on top of the test sand and a stopwatch was used to record the penetration time. After five minutes, the drops were removed.
  • Ten drops of the one molar ethanol were then placed on the sand and timed (an average of two minutes and 10 seconds).
  • Example 1 - Sorbitol 12 PO (hexa- functional): 858 grams of 70%> sorbitol were charged to the reactor. 7.2 grams of KOH flake was then added. The reactor was heated to 230°F and vacuum stripped until the water was less than 0.1%>. The reactor was purged 3 x 60 psi with nitrogen, heated to 250°F and 2296.8 grams of PO added. After the addition of PO was complete, the vacuum was applied to the reactor to remove any unreacted oxide.
  • Example 2 Glycerine 12 PO (tri-functionai): 350 grams of glycerin was charged to the reactor. 7.5 grams of KOH flake was then added. The reactor was heated to 230°F and vacuum stripped until the water was less than 0.1%o. The reactor was purged 3 x 60 psi with nitrogen, heated to 250°F and 2647.8 grams of PO added. After the addition of PO was complete, the vacuum was applied to the reactor to remove any unreacted oxide.
  • Example 3 Propylene Glycol (PPG) 1500 (tri-functional) : 500 grams of dipropylene glycol was charged to the reactor. 8.6 grams of KOH flake was then added. The reactor was heated to 230°F and vacuum stripped until the water was less than 0.1 %>. The reactor was purged 3 x 60 psi with nitrogen, heated to 250°F and 5194 grams of PO added. After the addition of PO was complete, the vacuum was applied to the reactor to remove any unreacted oxide.
  • PPG Propylene Glycol
  • Example 4 Linear 2000-10 Block (Comparative): 1526 grams of PPG- 1500 was charged to the reactor. 3.0 grams of KOH flake was then added. The reactor was heated to 230°F and vacuum stripped until the water was less than 0.1%). The reactor was purged 3 x 60 psi with nitrogen, heated to 250°F and 232.0 grams of PO added. After the addition of PO was complete, 242 grams of EO was added.
  • Example 5 Linear 2500-20 Block (Comparative): 1526 grams of PPG-1500 was charged to the reactor. 3.7 grams of KOH flake was then added. The reactor was heated to 230°F and vacuum stripped until the water was less than 0.1%). The reactor was purged 3 x 60 psi with nitrogen, heated to 250°F and 232.0 grams of PO added. After the addition of PO was complete, 748 grams of EO was added. Vacuum was applied to the reactor to remove any unreacted oxide.
  • Example 6 Glycerine 5000-20 Block (tri-functional): 788 grams of Glycerine 12PO was charged to the reactor. 12 grams of KOH flake was then added. The reactor was heated to 230°F and vacuum stripped until the water was less than 0.1%). The reactor was purged 3 x 60 psi with nitrogen, heated to 250°F and 3230.4 grams of PO added. After the addition of PO was complete, 981.6 grams of EO was added. Vacuum was applied to the reactor to remove any unreacted oxide.
  • Example 7 Sorbitol 9000-20 Block (hexa-functionaD: 600 grams of Sorbitol 12PO was charged to the reactor. 8.6 grams of KOH flake was then added. The reactor was heated to 230 F and vacuum stripped until the water was less than 0.1%). The reactor was purged 3 x 60 psi with nitrogen, heated to 250 F and 3636.5 grams of PO added. After the addition of PO was complete, 1104.6 grams of EO was added. Vacuum was applied to the reactor to remove any unreacted oxide. In addition, a single humic acid removal compound was produced for testing.
  • Example 8 Amine-based Humic Removal Compound: 569.6 grams of water was added to a beaker equipped with a magnetic stir bar. 271.6 grams of DDSA (from Milliken Chemical) and 190.7 grams of Triethanolamine were added to the beaker and heated to 60-70°C.
  • DDSA from Milliken Chemical
  • Soil Additive Formulations Soil additive formulations were then produced for measurement in terms of reduction of
  • Formulation 1 90 parts Sorbitol 9000-20 10 parts SYNFAC® TDA-92 (Tridecyl alcohol 8EO from Milliken Chemical) Formulation 2: 300 parts Glycerine 5000-20 40 parts Syn Fac TDA-92 132 parts
  • Example 8 Formulation 3 (Comparative): 18 parts Linear 2000-10 72 parts Linear 2500-20 10 parts Syn Fac TDA-92 Formulation 4 (Comparative): 87 parts FORMULATION 3 33 parts
  • Example 8 These examples, plus the comparatives listed below, were all tested in terms of the above-noted ethanol drop test within the target sandy soils. A lower molarity of ethanol droplet value indicates better wettability and thus moisture penetration to alleviate dry spot localization within lawns, gardens, and the like.
  • inventive multi-branched formulations 1 and 2 clearly showed extremely good long-term wetting properties for effective dry spot alleviation, particularly with the hexa-branched wetting agents in Formulation 1 showing better long-term wetting than the inventive tri-branched wetting agents of Formulation 2, with both clearly better in such long- term properties than the linear types in the remaining Formulations.
  • inventive multi- branched formulations 1 and 2 clearly showed extremely good long-term wetting properties for effective dry spot alleviation as compared to their linear counterparts formulations 3 and

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Soil Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Environmental Sciences (AREA)
  • Soil Conditioners And Soil-Stabilizing Materials (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)

Abstract

L'invention concerne certaines nouvelles formulations d'additifs de pelouse agissant de manière à permettre à des quantités correctes de moisissure d'être en contact avec des systèmes racinaires, de sorte à réduire des emplacements secs, à l'intérieur de zones de gazon et/ou de pelouses fortement utilisés. L'invention concerne une formulation comprenant des composés surfactants à ramifications multiples présentant des constituants hydrophobes et hydrophiles à l'intérieur de chaque ramification, fixés sur un composé de base polyfonctionnel contenant de l'oxygène, et permettant une pénétration d'humidité efficace, par de tels emplacements secs localisés, afin d'obtenir une croissance herbeuse continue dans ces emplacements. Une caractéristique importante de l'invention est que les agents mouillants à ramifications multiples sont tels qu'ils permettent une pénétration d'humidité continue, pendant une période prolongée, puisque les ramifications individuelles de ces composés peuvent se dissocier de leur composé polyfonctionnel de base. Puisque les ramifications comprennent à la fois des constituants hydrophobes et hydrophiles, ils agissent ainsi en tant qu'agents mouillants, même après la dégradation du composé surfactant initial, et permettent au moins une pénétration de l'humidité et un mouillage à long terme. L'invention concerne des méthodes de traitement de sols sableux au moyen de tels composés et de telles formulations.
EP04753432A 2003-06-13 2004-05-26 Agents mouillants de regeneration a ramifications multiples pour traiter des sols sableux pour une reduction a long terme d'hydrorejets Withdrawn EP1633181A4 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US10/461,799 US6857225B2 (en) 2003-06-13 2003-06-13 Method of treating sandy soils with multi-branched regenerating wetting agents
US46115804A 2004-02-17 2004-02-17
PCT/US2004/016603 WO2005000944A2 (fr) 2003-06-13 2004-05-26 Agents mouillants de regeneration a ramifications multiples pour traiter des sols sableux pour une reduction a long terme d'hydrorejets et leur methode associee

Publications (2)

Publication Number Publication Date
EP1633181A2 true EP1633181A2 (fr) 2006-03-15
EP1633181A4 EP1633181A4 (fr) 2007-09-05

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EP04753432A Withdrawn EP1633181A4 (fr) 2003-06-13 2004-05-26 Agents mouillants de regeneration a ramifications multiples pour traiter des sols sableux pour une reduction a long terme d'hydrorejets

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EP (1) EP1633181A4 (fr)
AU (1) AU2004251157A1 (fr)
CA (1) CA2520873A1 (fr)
WO (1) WO2005000944A2 (fr)

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WO2005000944A2 (fr) 2005-01-06
WO2005000944A3 (fr) 2005-12-15
EP1633181A4 (fr) 2007-09-05
AU2004251157A1 (en) 2005-01-06
CA2520873A1 (fr) 2005-01-06

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