WO1992001379A1 - Utilisation de pyrithione pour eliminer la mousse - Google Patents

Utilisation de pyrithione pour eliminer la mousse Download PDF

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Publication number
WO1992001379A1
WO1992001379A1 PCT/US1991/004815 US9104815W WO9201379A1 WO 1992001379 A1 WO1992001379 A1 WO 1992001379A1 US 9104815 W US9104815 W US 9104815W WO 9201379 A1 WO9201379 A1 WO 9201379A1
Authority
WO
WIPO (PCT)
Prior art keywords
pyrithione
moss
sodium
growing
salt
Prior art date
Application number
PCT/US1991/004815
Other languages
English (en)
Inventor
Eugene F. Rothgery
Original Assignee
Olin 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
Priority claimed from US07/558,299 external-priority patent/US5235949A/en
Application filed by Olin Corporation filed Critical Olin Corporation
Publication of WO1992001379A1 publication Critical patent/WO1992001379A1/fr

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Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
    • A01N43/34—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one nitrogen atom as the only ring hetero atom
    • A01N43/40—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one nitrogen atom as the only ring hetero atom six-membered rings

Definitions

  • This invention relates to a new use of pyrithiones, and, more specifically, to a process for controlling moss by treating the moss with an effective amount of a pyrithione compound.
  • the present invention relates to a process for ridding moss from an unwanted location which comprises contacting the moss with a mossicidal effective amount of sodium pyrithione, zinc pyrithione, or a combination thereof.
  • the sodium pyrithione employed in the process of the present invention is a well-known commercial product and is commonly made by reacting 2-chloropyridine-N-oxide with NaSH and NaOH, as disclosed in U.S. Patent
  • Zinc pyrithione may be made by reacting l-hydroxy-2-pyridinethione or a soluble salt thereof with a zinc salt (e.g., ZnS0 4 ) to form a zinc pyrithione precipitate, as disclosed in U.S. Patent 2,809,971.
  • a zinc salt e.g., ZnS0 4
  • the zinc pyrithione, sodium pyrithione, or combination thereof is employed in a "mossicidal effective amount" which designates an amount of the selected pyrithione salt sufficient to eradicate any living moss in an undesirable location without harming grass growing on the lawn.
  • this amount is between about 5 and about 100 milligrams/sq. ft. of the moss to be eradicated.
  • pyrithione salts useful in the process of the present invention are sodium pyrithione, zinc pyrithione, or a combination thereof, other pyrithione salts are also suitably employed within the scope of the present invention, including, for example, copper, aluminum and magnesium.
  • Moss grows in many undesirable location such as, for example, on lawns together with grass, or growing on structures such as walls, monuments, building foundations, tombstones, and the like. Moss growing on such structures causes cosmetic (eg . , discoloration) problems and surface damage problems to the structures.
  • the process of the present invention is suitable for eradicating moss growing in any of these undesirable locations. When the process of the present invention is used to treat moss growing on lawns, it has now been surprisingly found that the moss is effectively eradicated without any damage to the grass growing on the lawn in the vicinity of the treated moss.
  • the mossicidal composition useful in the process of the present invention suitably contains, in addition to the pyrithione salt, optional additives such as surfactants (such as polyalkoxylated surfactants commercially available as POLYTERGENT® B300), wetting agents, stabilizers, and the like, and combinations thereof.
  • surfactants such as polyalkoxylated surfactants commercially available as POLYTERGENT® B300
  • wetting agents such as polyalkoxylated surfactants commercially available as POLYTERGENT® B300
  • This solution has a concentration of pyrithione salt of about 1675 ppm. It was applied to the moss in the evening because the pyrithione solutions typically are not stable in the presence of light without added UV stabilizers.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Agronomy & Crop Science (AREA)
  • Pest Control & Pesticides (AREA)
  • Plant Pathology (AREA)
  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Dentistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Zoology (AREA)
  • Environmental Sciences (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)

Abstract

Procédé permettant d'éliminer la mousse présente dans des endroits où elle est indésirable tels que des pelouses, des murs, des monuments, des fondations d'immeubles, des pierres tombales ou des associations de ces derniers. Dans ce procédé, on soumet la mousse poussant dans un endroit où elle est indésirable, à une quantité herbicide efficace d'un sel de pyrithione. De préférence on emploie une quantité de sel de pyrithione comprise entre environ 5 et environ 100 milligrammes par pied carré de la mousse qu'on veut élimer.
PCT/US1991/004815 1990-07-26 1991-07-10 Utilisation de pyrithione pour eliminer la mousse WO1992001379A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/558,299 US5235949A (en) 1989-08-04 1990-07-26 Method and arrangement for controlling the fuel metered in a diesel engine
US558,279 1990-07-26

Publications (1)

Publication Number Publication Date
WO1992001379A1 true WO1992001379A1 (fr) 1992-02-06

Family

ID=24229004

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1991/004815 WO1992001379A1 (fr) 1990-07-26 1991-07-10 Utilisation de pyrithione pour eliminer la mousse

Country Status (1)

Country Link
WO (1) WO1992001379A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2809971A (en) * 1955-11-22 1957-10-15 Olin Mathieson Heavy-metal derivatives of 1-hydroxy-2-pyridinethiones and method of preparing same
US3107994A (en) * 1959-05-01 1963-10-22 Monsanto Chemicals Controlling vegetation with alkenyl thiopyridine oxides
US3159640A (en) * 1963-04-23 1964-12-01 Olin Mathieson Process for preparing 2-mercaptopyridine-nu oxide
US4039312A (en) * 1972-07-04 1977-08-02 Marcel Joseph Gaston Patru Bacteriostatic, fungistatic and algicidal compositions, particularly for submarine paints
US4818436A (en) * 1987-08-31 1989-04-04 Olin Corporation Process and composition for providing reduced discoloration of pyrithiones
US4935061A (en) * 1989-01-17 1990-06-19 Olin Corporation Process and composition for providing reduced discoloration caused by the presence of pyrithione and ferric ion in water-based paints and paint bases

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2809971A (en) * 1955-11-22 1957-10-15 Olin Mathieson Heavy-metal derivatives of 1-hydroxy-2-pyridinethiones and method of preparing same
US3107994A (en) * 1959-05-01 1963-10-22 Monsanto Chemicals Controlling vegetation with alkenyl thiopyridine oxides
US3159640A (en) * 1963-04-23 1964-12-01 Olin Mathieson Process for preparing 2-mercaptopyridine-nu oxide
US4039312A (en) * 1972-07-04 1977-08-02 Marcel Joseph Gaston Patru Bacteriostatic, fungistatic and algicidal compositions, particularly for submarine paints
US4818436A (en) * 1987-08-31 1989-04-04 Olin Corporation Process and composition for providing reduced discoloration of pyrithiones
US4935061A (en) * 1989-01-17 1990-06-19 Olin Corporation Process and composition for providing reduced discoloration caused by the presence of pyrithione and ferric ion in water-based paints and paint bases

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