WO2006112922B1 - Method and system for preheating epoxy coatings for spray application - Google Patents

Method and system for preheating epoxy coatings for spray application

Info

Publication number
WO2006112922B1
WO2006112922B1 PCT/US2006/005030 US2006005030W WO2006112922B1 WO 2006112922 B1 WO2006112922 B1 WO 2006112922B1 US 2006005030 W US2006005030 W US 2006005030W WO 2006112922 B1 WO2006112922 B1 WO 2006112922B1
Authority
WO
WIPO (PCT)
Prior art keywords
resin
catalyst
heat transfer
heating
transfer conduit
Prior art date
Application number
PCT/US2006/005030
Other languages
French (fr)
Other versions
WO2006112922A3 (en
WO2006112922A2 (en
Inventor
Danny Warren
David Allan Smith
Original Assignee
Warren Environmental Inc
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 Warren Environmental Inc filed Critical Warren Environmental Inc
Priority to JP2008507652A priority Critical patent/JP4944871B2/en
Priority to AU2006237605A priority patent/AU2006237605B2/en
Priority to NZ562986A priority patent/NZ562986A/en
Priority to CA2605232A priority patent/CA2605232C/en
Priority to MX2007013022A priority patent/MX2007013022A/en
Priority to EP06734943A priority patent/EP1888261A4/en
Publication of WO2006112922A2 publication Critical patent/WO2006112922A2/en
Publication of WO2006112922A3 publication Critical patent/WO2006112922A3/en
Publication of WO2006112922B1 publication Critical patent/WO2006112922B1/en
Priority to NO20075850A priority patent/NO20075850L/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/80—Component parts, details or accessories; Auxiliary operations
    • B29B7/82—Heating or cooling
    • B29B7/826—Apparatus therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/16—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas incorporating means for heating or cooling the material to be sprayed
    • B05B7/166—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas incorporating means for heating or cooling the material to be sprayed the material to be sprayed being heated in a container
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/16—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas incorporating means for heating or cooling the material to be sprayed
    • B05B7/1673—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas incorporating means for heating or cooling the material to be sprayed heat being transferred to the material to be sprayed by a heat transfer conductive fluid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D1/00—Processes for applying liquids or other fluent materials
    • B05D1/02—Processes for applying liquids or other fluent materials performed by spraying
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D1/00—Processes for applying liquids or other fluent materials
    • B05D1/34—Applying different liquids or other fluent materials simultaneously
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D2504/00—Epoxy polymers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2063/00—Use of EP, i.e. epoxy resins or derivatives thereof, as moulding material
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/06—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with the heat-exchange conduits forming part of, or being attached to, the tank containing the body of fluid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/02—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being helically coiled
    • F28D7/024—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being helically coiled the conduits of only one medium being helically coiled tubes, the coils having a cylindrical configuration

Abstract

A method and system for the spray application of epoxy materials is provided. The system (10) includes a dual walled tank structure (12) as a reservoir for containing and preheating the epoxy material's (36, 50) in preparation for mixing and spray application. Each component of the epoxy material (36, 50) is preheated before the components are mixed. After preheating, the components are then mixed together and spray applied. The method and system of the present invention provides a high quality spray applied epoxy coating while reducing equipment down time and cleaning.

Claims

23AMENDED CLAIMS received by the International Bureau on 02 August 2007 (02.08.2007)WHAT IS CLAIMED:
1. A system for the spray application of a multi-part epoxy material, said multi-part epoxy material including at least a resin and a catalyst, said system comprising:
a heating tank, said heating tank including an outer wall and an inner wall, said inner wall having an inner surface and an outer surface, said outer wall and said outer surface of said inner wall cooperating to form a heating jacket therebetween, said inner surface of said inner wall forming a resin chamber, wherein said heating jacket contains a heat transfer medium, wherein said resin is contained within said resin chamber;
means for heating said heat transfer medium disposed within said heating jacket;
a resin heat transfer conduit disposed within said heating jacket, said resin heat transfer conduit having an input end in fluid communication with said resin chamber and an output end disposed on the exterior of said heating tank;
a catalyst heat transfer conduit disposed within said heating jacket said catalyst heat transfer conduit having an input end in fluid communication with a catalyst reservoir and an output end disposed on the exterior of said heating tank, said catalyst heat transfer conduit being a closed system between said catalyst reservoir and said output end;
means for establishing a flow of resin through said resin heat transfer conduit;
means for establishing a flow of catalyst through said catalyst heat transfer conduit; a mixing pump configured to receive and mix said flow of resin and said flow of catalyst and discharge said mixture at an elevated pressure; and
a spray applicator for applying said discharged mixture .
2. The system of claim 1, wherein said means for heating is an electrical heating coil.
3. The system of claim 1, wherein said means for heating is a fuel fired burner.
4. The system of claim 1, further comprising:
a resin pre-heating conduit disposed within said heating jacket, said resin heating conduit having an input end on the exterior of said heating tank and an output end disposed in fluid communication with said resin chamber, wherein resin is introduced to said input end and preheated before entering the resin chamber.
5. The system of claim 1, wherein said resin within said resin chamber is preheated to a temperature that is below the evaporation temperature of the various chemical components within the resin.
6. The system of Claim 5, wherein the resin is heated to a temperature of between approximately 150°F and 1600F as it flows through said resin heat transfer conduit. 25
7. The system of Claim 1, wherein the catalyst is heated to a temperature of between approximately 150°F and 1600F as it flows through said catalyst heat transfer conduit .
8. The system of claim 1, wherein said resin heat transfer conduit is a coil of piping disposed within said heating jacket.
9. The system of claim 1, wherein said catalyst heat transfer conduit is a coil of piping disposed within said heating j acket .
10. A method of spray application for a multi-part epoxy material, said multi-part epoxy material including at least a resin and a catalyst, said method comprising the steps of :
providing a heating tank having an resin chamber therein;
filling said resin chamber with an epoxy resin;
preheating said resin within said resin chamber to a first temperature;
drawing said preheated resin from said resin chamber to create a resin flow;
providing a catalyst ;
creating a catalyst flow; 26
preheating said catalyst flow to a second temperature within a closed flow conduit;
mixing said catalyst flow and said resin flow; and
discharging said mixed resin and catalyst flow at an elevated pressure.
11. The method of claim 10, wherein said first and second temperatures are between approximately 150°F and 160°F.
12. The method of claim 10, further comprising the step of:
heating said resin flow to a second temperature, said second temperature being higher than said first temperature .
13. The method of claim 12, wherein said first temperature is below the evaporation temperature of the various chemical components within the resin and said second temperature is between approximately 1500F and 160°F.
14. The method of claim 10, said heating tank comprising:
an outer wall;
an inner wall , said inner wall having an inner surface and an outer surface ; 27
a heating jacket disposed between said outer wall and said outer surface of said inner wall, wherein said heating jacket contains a heat transfer medium;
a resin chamber formed by said inner surface of said inner wall, wherein said resin is contained within said resin chamber; and
means for heating said heat transfer medium disposed within said heating jacket.
15. The method of claim 14, wherein said resin flow is directed through a resin heat transfer conduit disposed within said heating jacket, said resin heat transfer conduit having an input end in fluid communication with said resin chamber and an output end disposed on the exterior of said heating tank, and said catalyst flow is directed through a catalyst heat transfer conduit disposed within said heating jacket said catalyst heat transfer conduit having an input end in fluid communication with a catalyst reservoir and an output end disposed on the exterior of said heating tank, said catalyst heat transfer conduit being a closed system between said catalyst reservoir and said output end.
16. The method of claim 15, wherein said resin within said resin chamber is preheated to said first temperature that is below the evaporation temperature of the various chemical components within the resin.
17. The method of Claim 16, wherein the resin is heated to a second temperature of between approximately 150°F and 28
160°F as it flows through said resin heat transfer conduit .
18. The method of Claim 15, wherein the catalyst is heated to a temperature of between approximately 1500F and 1600F as it flows through said catalyst heat transfer conduit .
19. The method of claim 15, wherein said resin heat transfer conduit is a coil of piping disposed within said heating jacket.
20. The method of claim 15, wherein said catalyst heat transfer conduit is a coil of piping disposed within said heating jacket.
PCT/US2006/005030 2005-04-19 2006-02-11 Method and system for preheating epoxy coatings for spray application WO2006112922A2 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
JP2008507652A JP4944871B2 (en) 2005-04-19 2006-02-11 Method and system for preheating epoxy coatings for spray application
AU2006237605A AU2006237605B2 (en) 2005-04-19 2006-02-11 Method and system for preheating epoxy coatings for spray application
NZ562986A NZ562986A (en) 2005-04-19 2006-02-11 Method and system for preheating epoxy coatings for spray application
CA2605232A CA2605232C (en) 2005-04-19 2006-02-11 Method and system for preheating epoxy coatings for spray application
MX2007013022A MX2007013022A (en) 2005-04-19 2006-02-11 Method and system for preheating epoxy coatings for spray application.
EP06734943A EP1888261A4 (en) 2005-04-19 2006-02-11 Method and system for preheating epoxy coatings for spray application
NO20075850A NO20075850L (en) 2005-04-19 2007-11-14 Method and System for Preheating Epoxy Coatings for Spray Paving

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US67269405P 2005-04-19 2005-04-19
US60/672,694 2005-04-19
US11/275,952 US7694894B2 (en) 2005-04-19 2006-02-07 Method and system for preheating epoxy coatings for spray application
US11/275,952 2006-02-07

Publications (3)

Publication Number Publication Date
WO2006112922A2 WO2006112922A2 (en) 2006-10-26
WO2006112922A3 WO2006112922A3 (en) 2007-09-13
WO2006112922B1 true WO2006112922B1 (en) 2007-10-25

Family

ID=37108790

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2006/005030 WO2006112922A2 (en) 2005-04-19 2006-02-11 Method and system for preheating epoxy coatings for spray application

Country Status (10)

Country Link
US (4) US7694894B2 (en)
EP (1) EP1888261A4 (en)
JP (1) JP4944871B2 (en)
KR (1) KR100963163B1 (en)
AU (1) AU2006237605B2 (en)
CA (1) CA2605232C (en)
MX (1) MX2007013022A (en)
NO (1) NO20075850L (en)
NZ (1) NZ562986A (en)
WO (1) WO2006112922A2 (en)

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US9931653B2 (en) 2005-04-19 2018-04-03 Warren Environmental, Inc. Method and system for preheating epoxy coatings for spray application
US8919666B2 (en) * 2005-04-19 2014-12-30 Warren Environmental, Inc. Method and system for preheating epoxy coatings for spray application
US7694894B2 (en) * 2005-04-19 2010-04-13 Warren Environmental, Inc. Method and system for preheating epoxy coatings for spray application
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Also Published As

Publication number Publication date
US8409669B2 (en) 2013-04-02
EP1888261A4 (en) 2011-04-06
US20090061098A1 (en) 2009-03-05
WO2006112922A3 (en) 2007-09-13
AU2006237605B2 (en) 2010-08-12
KR20080002898A (en) 2008-01-04
NZ562986A (en) 2009-10-30
KR100963163B1 (en) 2010-06-15
US8328116B2 (en) 2012-12-11
NO20075850L (en) 2008-01-18
MX2007013022A (en) 2008-03-13
US20060233960A1 (en) 2006-10-19
CA2605232C (en) 2012-09-25
AU2006237605A1 (en) 2006-10-26
US20120091226A1 (en) 2012-04-19
JP2008536681A (en) 2008-09-11
WO2006112922A2 (en) 2006-10-26
US7694894B2 (en) 2010-04-13
JP4944871B2 (en) 2012-06-06
EP1888261A2 (en) 2008-02-20
US7926739B2 (en) 2011-04-19
CA2605232A1 (en) 2006-10-26
US20080057209A1 (en) 2008-03-06

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