WO1999040046A1 - Engrais enrobe dans une feuille, presentant une liberation ciblee des substances nutritives - Google Patents

Engrais enrobe dans une feuille, presentant une liberation ciblee des substances nutritives Download PDF

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Publication number
WO1999040046A1
WO1999040046A1 PCT/EP1998/000671 EP9800671W WO9940046A1 WO 1999040046 A1 WO1999040046 A1 WO 1999040046A1 EP 9800671 W EP9800671 W EP 9800671W WO 9940046 A1 WO9940046 A1 WO 9940046A1
Authority
WO
WIPO (PCT)
Prior art keywords
film
volumes
nutrient
acid
coated fertilizer
Prior art date
Application number
PCT/EP1998/000671
Other languages
German (de)
English (en)
Inventor
Klaus Erhardt
Original Assignee
Basf Aktiengesellschaft
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 Basf Aktiengesellschaft filed Critical Basf Aktiengesellschaft
Priority to PCT/EP1998/000671 priority Critical patent/WO1999040046A1/fr
Publication of WO1999040046A1 publication Critical patent/WO1999040046A1/fr

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
    • C05G5/00—Fertilisers characterised by their form
    • C05G5/30—Layered or coated, e.g. dust-preventing coatings
    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
    • C05G5/00—Fertilisers characterised by their form
    • C05G5/10—Solid or semi-solid fertilisers, e.g. powders
    • C05G5/18—Semi-solid fertilisers, e.g. foams or gels

Definitions

  • An active substance body for fertilizing, soil improvement or the like which is characterized in that the ingredients contained therein are embedded or distributed in a carrier material made of rotting plastic, is described in DE-A 40 35 223.
  • the only carrier materials described are water-impermeable carrier materials, from which the ingredient is only released when they rot. this has the result is that no ingredient before the start of rotting, but at the beginning of rotting, ie as soon as the carrier material has sufficiently large perforations or holes, but the ingredient contained therein is released within a very short time, so that there can no longer be any question of targeted release and in particular damage to the plants to be treated can result from excessive amounts of active ingredient.
  • water-permeable used in the term of the present invention means that the films which can be used here and which permeable polymer contain (hereinafter often referred to as “polymer films”) have water vapor permeabilities that are higher than that of polyethylene.
  • Polyamides e.g. Polyamide 6, polyamide 66, polyamide 12 and polyamides 610, 612, and copolymers based on polyamides;
  • the rate of biodegradation is possible, ie the point in time up to which the polyesters used according to the invention essentially are completely degraded to vary.
  • the copolyesters are biodegradable the faster the proportion of repeating units derived from aliphatic carboxylic acids.
  • films containing a biodegradable copolyester which contain structural units which are derived from both aliphatic and aromatic carboxylic acids (derivatives) and can be obtained by reacting a mixture comprising :
  • the dicarboxylic acids or ester-forming derivatives thereof can be used individually or as a mixture of two or more thereof.
  • chain extenders customary in the production of polyesters can be used as chain extenders (a3).
  • the proportion, if used, is approximately 0.01 to approximately 10, preferably approximately 0.05 to approximately 5, more preferably approximately 0.07 to approximately 3 and in particular approximately 0.1 to approximately 1% by weight. -%, each based on the mixture (al).
  • the chain extenders (a3) can also be used as a mixture of two or more thereof.
  • the compounds used as compounds (a4) preferably contain 3 to 10 functional groups which are capable of forming ester bonds.
  • Particularly preferred compounds (a4) have 3 to 6 functional groups of this type in the molecule, in particular 3 to 6 hydroxyl groups and / or carboxyl groups.
  • Tri- and / or tetrafunctional carboxylic acids or derivatives thereof are particularly preferably used. Examples include: tartaric acid, citric acid, malic acid, trimethyl loipropan, trimethylolethane, pentaerythritol, polyethertriols, glycerin, trimesic acid, trimellitic acid, anhydride, apyromellitic acid, dianhydride and hydroxy isophthalic acid.
  • .calenders i.e. Machines with a plurality of rollers, which are typically arranged one above the other or one next to the other and optionally have heatable depressions, as defined above, are used.
  • the general procedure is as follows: At least one first and at least one second film, which has corresponding depressions on its surface, are fed from two sides in each case.
  • the foils are then introduced into the depressions by an appropriate device, for example a vacuum source.
  • the foils Before filling with the nutrient-containing substance, the foils are brought into contact with one another at one point of the device used and are connected to one another on one side.
  • the nutrient-containing substance is then added in an appropriate amount (volume) and the two films are brought into contact with one another again after the addition of the nutrient-containing substance has ended, and are again connected, for example by gluing, welding, evacuation or electrostatic charging.
  • a film-coated fertilizer which can be produced by a process which comprises the following steps: a) feeding at least one film in the form of a tube, which contains a water-permeable polymer, into an insertion device;

Abstract

L'invention concerne un engrais enrobé dans une feuille, contenant des volumes d'une substance nutritive, enrobés individuellement. La feuille enrobant la substance nutritive contient un polymère perméable à l'eau, un matériau cellulosique, un matériau textile, un matériau de lignocellulose ou une combinaison d'au moins deux de ces matériaux. L'invention concerne également un procédé de production de cet engrais, et un procédé d'épandage d'engrais faisant appel à cet engrais enrobé dans une feuille.
PCT/EP1998/000671 1998-02-06 1998-02-06 Engrais enrobe dans une feuille, presentant une liberation ciblee des substances nutritives WO1999040046A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/EP1998/000671 WO1999040046A1 (fr) 1998-02-06 1998-02-06 Engrais enrobe dans une feuille, presentant une liberation ciblee des substances nutritives

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP1998/000671 WO1999040046A1 (fr) 1998-02-06 1998-02-06 Engrais enrobe dans une feuille, presentant une liberation ciblee des substances nutritives

Publications (1)

Publication Number Publication Date
WO1999040046A1 true WO1999040046A1 (fr) 1999-08-12

Family

ID=8166863

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1998/000671 WO1999040046A1 (fr) 1998-02-06 1998-02-06 Engrais enrobe dans une feuille, presentant une liberation ciblee des substances nutritives

Country Status (1)

Country Link
WO (1) WO1999040046A1 (fr)

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1553553A (fr) * 1968-02-14 1969-01-10
US4224048A (en) * 1978-03-17 1980-09-23 Products By Hector, Incorporated Osmotic fertilizer product and fertilization method
JPS6364984A (ja) * 1986-09-05 1988-03-23 ▲くわ▼原　利雄 単位長さに一定量を含むテ−プ状の肥料
DE9004592U1 (fr) * 1990-04-24 1990-09-13 Aglukon Spezialduenger Gmbh, 4000 Duesseldorf, De
WO1991007319A1 (fr) * 1989-11-14 1991-05-30 Therma Rite Pty Limited Appareil de fabrication de recipients flexibles
US5022182A (en) * 1988-08-22 1991-06-11 Promac Industries, Ltd. Agricultural processes and products
EP0536087A1 (fr) * 1991-10-03 1993-04-07 Holvis Holzstoff Sa Système-réservoir pour diffusion prolongée d'un principe actif
DE19503671A1 (de) * 1994-01-27 1995-08-03 Tomohiro Shindo Säfolie und Vorrichtung zu ihrer Herstellung
DE19504219C1 (de) * 1995-02-09 1996-06-05 Bosch Gmbh Robert Verpackungsmaschine
DE4443881A1 (de) * 1994-12-09 1996-06-13 Tebbe Gerold Düngeelement
DE19613285A1 (de) * 1996-03-29 1997-10-02 Tils Peter Verfahren zur Konfektionierung von Komposteinheiten

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1553553A (fr) * 1968-02-14 1969-01-10
US4224048A (en) * 1978-03-17 1980-09-23 Products By Hector, Incorporated Osmotic fertilizer product and fertilization method
JPS6364984A (ja) * 1986-09-05 1988-03-23 ▲くわ▼原　利雄 単位長さに一定量を含むテ−プ状の肥料
US5022182A (en) * 1988-08-22 1991-06-11 Promac Industries, Ltd. Agricultural processes and products
WO1991007319A1 (fr) * 1989-11-14 1991-05-30 Therma Rite Pty Limited Appareil de fabrication de recipients flexibles
DE9004592U1 (fr) * 1990-04-24 1990-09-13 Aglukon Spezialduenger Gmbh, 4000 Duesseldorf, De
EP0536087A1 (fr) * 1991-10-03 1993-04-07 Holvis Holzstoff Sa Système-réservoir pour diffusion prolongée d'un principe actif
DE19503671A1 (de) * 1994-01-27 1995-08-03 Tomohiro Shindo Säfolie und Vorrichtung zu ihrer Herstellung
DE4443881A1 (de) * 1994-12-09 1996-06-13 Tebbe Gerold Düngeelement
DE19504219C1 (de) * 1995-02-09 1996-06-05 Bosch Gmbh Robert Verpackungsmaschine
DE19613285A1 (de) * 1996-03-29 1997-10-02 Tils Peter Verfahren zur Konfektionierung von Komposteinheiten

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
DATABASE WPI Section Ch Week 8818, Derwent World Patents Index; Class A97, AN 88-122164, XP002080498 *

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