CA2565490A1 - Polyurethane encapsulated fertilizer, herbicide, insecticide or fungicide - Google Patents

Polyurethane encapsulated fertilizer, herbicide, insecticide or fungicide Download PDF

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Publication number
CA2565490A1
CA2565490A1 CA002565490A CA2565490A CA2565490A1 CA 2565490 A1 CA2565490 A1 CA 2565490A1 CA 002565490 A CA002565490 A CA 002565490A CA 2565490 A CA2565490 A CA 2565490A CA 2565490 A1 CA2565490 A1 CA 2565490A1
Authority
CA
Canada
Prior art keywords
set forth
encapsulated particle
particle
polyol
encapsulated
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.)
Granted
Application number
CA002565490A
Other languages
French (fr)
Other versions
CA2565490C (en
Inventor
Donald Charles Mente
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.)
BASF Corp
Original Assignee
Basf Corporation
Donald Charles Mente
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 Corporation, Donald Charles Mente filed Critical Basf Corporation
Publication of CA2565490A1 publication Critical patent/CA2565490A1/en
Application granted granted Critical
Publication of CA2565490C publication Critical patent/CA2565490C/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/40—High-molecular-weight compounds
    • C08G18/48—Polyethers
    • C08G18/50—Polyethers having heteroatoms other than oxygen
    • C08G18/5021—Polyethers having heteroatoms other than oxygen having nitrogen
    • C08G18/5024—Polyethers having heteroatoms other than oxygen having nitrogen containing primary and/or secondary amino groups
    • C08G18/5027—Polyethers having heteroatoms other than oxygen having nitrogen containing primary and/or secondary amino groups directly linked to carbocyclic groups
    • 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
    • C05G5/37—Layered or coated, e.g. dust-preventing coatings layered or coated with a polymer
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
    • C08G18/66—Compounds of groups C08G18/42, C08G18/48, or C08G18/52
    • C08G18/6666—Compounds of group C08G18/48 or C08G18/52
    • C08G18/667—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38
    • C08G18/6681—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/32 or C08G18/3271 and/or polyamines of C08G18/38
    • C08G18/6685—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/32 or C08G18/3271 and/or polyamines of C08G18/38 with compounds of group C08G18/3225 or polyamines of C08G18/38
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/40—Bio-organic fraction processing; Production of fertilisers from the organic fraction of waste or refuse
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2982—Particulate matter [e.g., sphere, flake, etc.]
    • Y10T428/2991—Coated
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2982—Particulate matter [e.g., sphere, flake, etc.]
    • Y10T428/2991—Coated
    • Y10T428/2998—Coated including synthetic resin or polymer

Abstract

An encapsulated particle includes a core particle. The core particle includes a fertilizer selected from the group of nitrogen, phosphate, potash, and sulfur, and combinations thereof. The core particle may also include herbicides, insecticides, and fungicides. The encapsulated particle also includes a polyurethane layer disposed about the core particle. The polyurethane layer includes the reaction product of an aromatic isocy-anate component and a polyol that is reactive with the aromatic isocyanate component. The aromatic isocyanate component includes methylene diphenyl diisocyanate, toluene diisocyanate, and mixtures thereof. The polyol that is reactive with the aromatic isocy-anate component is derived from an aromatic amine-based initiator and includes a toluene diamine. The aromaticity of the aromatic isocyanate component and the polyol serves to insure complete miscibility between the aromatic isocyanate and the polyol thereby forming the polyurethane layer without defects preventing water from permeat-ing the polyurethane layer and dissolving the core particle.

Claims (16)

What is claimed is:
1. An encapsulated particle comprising:
A a core particle;

b a polyurethane layer disposed about said core particle and comprising the reaction product of;

(i) ah isocyanate component, and (ii) a polyol derived from an aromatic amine-based initiator.
2. An encapsulated particle as set forth in claim 1 wherein said aromatic amine-based initiator comprises the formula:

wherein R1 comprises one of an alkyl group, an amine group, and a hydrogen;
and wherein each of R2-R6 independently comprise one of an amine group and a hy-drogen; so long as at least one of R1-R6 is an amine group.
3. An encapsulated particle as set forth in claim 1 wherein said aromatic amine-based initiator comprises a toluene diamine.
4. An encapsulated particle as set forth in claim 3 wherein said isocyanate compo-nent comprises an aromatic isocyanate component.
5. An encapsulated particle as set forth in claim 1 wherein said isocyanate compo-nent comprises an aromatic isocyanate component.
B. An encapsulated particle as set forth in claim 5 wherein said isocyanate compo-nent comprises methylene diphenyl diisocyanate.
7. An encapsulated particle as set forth in claim 5 wherein said isocyanate compo-nent comprises toluene diisocyanate.
8. An encapsulated particle as set forth in claim 1 wherein said isocyanate compo-nent has a viscosity of from 20 to 700 centipoise at 25°C.
9. An encapsulated particle as set forth in claim 1 wherein said isocyanate compo-nent has a nominal functionality of from 1.5 to 4.
10. An encapsulated particle as set forth in claim 1 wherein said isocyanate compo-nent has a NCO content of from 25-40%.
11. An encapsulated particle as set forth in claim 1 wherein said polyol has a viscosity of from 5,000 to 17,000 centipoise at 25°C.
12. An encapsulated particle as set forth in claim 1 wherein said polyol has a hominal functionality of from 2 to 6.
13. An encapsulated particle as set forth in claim 1 wherein said polyol has an OH
number of from 350-500.
14. An encapsulated particle as set forth in claim 1 wherein said polyol is derived from a dipropylene glycol initiator in addition to said aromatic amide-based initiator.
15. An encapsulated particle as set forth in claim 1 wherein said polyurethane layer comprises a pigment for coloring said polyurethane layer.

16. An encapsulated particle as set forth in claim 1 wherein said core particle com-prises a fertilizer selected from the group of nitrogen, phosphate, potash, sulfur, and combinations thereof.

17. An encapsulated as set forth in claim 1 wherein said isocyanate component com-prises methylene diphenyl diisocyanate, and said polyol is derived from a toluene diamine.
16. An encapsulated particle as set forth in claim 17 wherein said toluene diamine is of the formula:

CA 2565490 2004-05-26 2005-05-11 Polyurethane encapsulated fertilizer, herbicide, insecticide or fungicide Active CA2565490C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US10/853,826 US7416785B2 (en) 2004-05-26 2004-05-26 Polyurethane-encapsulated particle comprising polyol derived from aromatic amine-based initiator
US10/853826 2004-05-26
PCT/EP2005/005066 WO2005118509A1 (en) 2004-05-26 2005-05-11 An encapsulated particle

Publications (2)

Publication Number Publication Date
CA2565490A1 true CA2565490A1 (en) 2005-12-15
CA2565490C CA2565490C (en) 2012-04-24

Family

ID=34967955

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2565490 Active CA2565490C (en) 2004-05-26 2005-05-11 Polyurethane encapsulated fertilizer, herbicide, insecticide or fungicide

Country Status (11)

Country Link
US (1) US7416785B2 (en)
EP (1) EP1768940B1 (en)
JP (1) JP2008500254A (en)
CN (1) CN100567355C (en)
BR (1) BRPI0511539A (en)
CA (1) CA2565490C (en)
ES (1) ES2681892T3 (en)
MX (1) MXPA06013643A (en)
PT (1) PT1768940T (en)
RU (1) RU2396237C2 (en)
WO (1) WO2005118509A1 (en)

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US7416785B2 (en) * 2004-05-26 2008-08-26 Basf Corporation Polyurethane-encapsulated particle comprising polyol derived from aromatic amine-based initiator
US8883914B2 (en) * 2006-02-13 2014-11-11 Basf Corporation Article formed from a resin composition having a polyurethane encapsulated particle
US8303680B2 (en) * 2009-06-24 2012-11-06 Basf Se Encapsulated particle
US8480782B2 (en) * 2010-10-18 2013-07-09 Tiger-Sul Products Llc Coated fertilizer particles
UA112183C2 (en) * 2011-05-05 2016-08-10 Басф Се Sawing unit
US9102573B2 (en) 2012-05-18 2015-08-11 Basf Se Encapsulated particle
WO2013173739A2 (en) * 2012-05-18 2013-11-21 Basf Se An encapsulated particle
NO336052B1 (en) * 2012-08-29 2015-04-27 Yara Int Asa Safe mixtures of ammonium nitrate (AN) with urea, or of an AN-containing product with a urea-containing product
UA116219C2 (en) * 2012-11-16 2018-02-26 Басф Се An encapsulated fertilizer particle containing pesticide
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CN103073355B (en) * 2013-01-31 2015-05-20 广西乐土生物科技有限公司 Pyrazosulfuron-mefenacet-containing weeding and insecticidal fertilizer and producing method thereof
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Also Published As

Publication number Publication date
JP2008500254A (en) 2008-01-10
PT1768940T (en) 2018-07-31
MXPA06013643A (en) 2007-03-23
EP1768940A1 (en) 2007-04-04
WO2005118509A1 (en) 2005-12-15
CN100567355C (en) 2009-12-09
CN1956938A (en) 2007-05-02
RU2006145856A (en) 2008-07-27
US7416785B2 (en) 2008-08-26
BRPI0511539A (en) 2008-01-02
ES2681892T3 (en) 2018-09-17
EP1768940B1 (en) 2018-05-02
RU2396237C2 (en) 2010-08-10
US20050266245A1 (en) 2005-12-01
CA2565490C (en) 2012-04-24

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