[go: up one dir, main page]

WO1998029465A1 - Composition de revetement en coulis de poudre pour recipient, procede de revetement d'un recipient et produit obtenu par ledit procede - Google Patents

Composition de revetement en coulis de poudre pour recipient, procede de revetement d'un recipient et produit obtenu par ledit procede Download PDF

Info

Publication number
WO1998029465A1
WO1998029465A1 PCT/US1997/022490 US9722490W WO9829465A1 WO 1998029465 A1 WO1998029465 A1 WO 1998029465A1 US 9722490 W US9722490 W US 9722490W WO 9829465 A1 WO9829465 A1 WO 9829465A1
Authority
WO
WIPO (PCT)
Prior art keywords
powder
slurry
weight
coating composition
powder coating
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.)
Ceased
Application number
PCT/US1997/022490
Other languages
English (en)
Inventor
William H. Alford
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 Corp
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 Corp filed Critical BASF Corp
Priority to AU57933/98A priority Critical patent/AU5793398A/en
Publication of WO1998029465A1 publication Critical patent/WO1998029465A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
    • 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
    • C08G59/00—Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
    • C08G59/18—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing
    • C08G59/182—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing using pre-adducts of epoxy compounds with curing agents
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/02—Emulsion paints including aerosols

Definitions

  • the present invention relates to a powder slurry container coating composition, a method for applying the composition, and the coated substrate obtained thereby.
  • temperatures are between temperatures range in the area
  • the present invention is a powder slurry coating composition
  • particle size of between 12 ⁇ m and 45 ⁇ m, and b) water, present in an amount between 50 and 80 percent by weight, based on total coating composition weight.
  • the invention includes a method of forming a powder slurry comprising combining the powder coating with water, and additives such as surfactants, dispersants, flow modifiers, defoamers, rheology control agents, and mixtures thereof .
  • the invention further includes coating a container comprising applying the powder slurry composition to a container or container component and
  • the present invention comprises a powder slurry
  • coating composition comprising a powder coating composition combined with water and other additives such
  • dispersants as dispersants, surfactants, thickeners, defoamers, flow additives, pigments, fillers, leveling agents, and
  • the powder coating composition comprises a solid epoxy resin having an epoxide equivalent weight of from
  • composition may comprise an aromatic, aliphatic, or
  • cycloaliphatic epoxy resin or a mixture of these resins.
  • the aromatic epoxy resins based on bisphenol A, bisphenol F, the novolak type resins and mixtures thereof are preferred.
  • bisphenol F that are particularly preferred have an epoxide equivalent weight of from 500 to 2000.
  • these resins have a functionality of not more than 2, although the functionality may be increased above 2 by
  • Novolak type that are preferred have an epoxide equivalent weight of from 500 to 1000.
  • epoxy resins such as, for example, alkylene glycol diglycidyl ethers or branched secondary products
  • epoxy resins based on bisphenol A or F which have been rendered flexible with alkylene glycols or the like can also be used. Mixtures of the various epoxy
  • Suitable hardener components B are solid compounds
  • phenolic OH group having more than one phenolic OH group, preferably 1.8 to 4, preferably, 1.8 to 2.2 phenolic OH groups per
  • phenolic OH groups of from 100 to 500, preferably from 200 to 300.
  • Hardeners based on bisphenol A, bisphenol F, or a mixture thereof are preferably employed as the hardener.
  • condensation products are usually prepared by reaction
  • the condensation product is preferably prepared by reaction of the diglycidyl ether with the bisphenol in a weight ratio of from 0.5 to 2.0.
  • ether with a bisphenol in general have a functionality of not more than 2, or a higher functionality may be
  • hardeners are preferably obtained by reaction of the epoxy resin with the bisphenol in a weight ratio of from 0.5 to 2.0 in the presence of a suitable catalyst.
  • Hardeners modified with branching agents hardeners that have been rendered flexible, and mixtures thereof
  • the epoxy resin component is usually employed in the powder coating composition in an amount between 29% and
  • Hardener B is usually employed in the powder coatings in an amount of from 10 to 50% by weight,
  • the powder coating composition further comprises a
  • catalyst present in an amount between 0.01 and 5.0% by weight, preferably 0.05 to 2.0% percent by weight, based on total powder coating composition weight.
  • available hardeners containing hydroxyl groups generally contain a hardening catalyst . Examples of these include
  • the powder coating composition may also contain from
  • pigments 15.0 to 55% by weight pigments.
  • Particularly preferred for purposes of the present invention are titanium
  • Powder coatings according to the present invention may also comprise from 0.01 to 10.0% by weight, preferably from 0.1 to 2.0 percent by weight of additives selected from the group consisting of leveling agents, surfactants, dispersants, defoamers, flow control
  • the powder coatings are prepared by known methods.
  • particles is between 12 and 45 ⁇ m, particularly preferably between 25 and 40 ⁇ m.
  • Powder slurry coating compositions are formed by
  • the powder slurry may include dispersant in an amount between 0.1 and 4.0 percent by
  • non-ionic surfactant present in an amount between 0.005
  • a rheology control agent comprising a nonionic thickener present in an amount between 0.1 and 4.0 percent by weight, preferably betwen 1.0 and 3.0 percent by weight; and optionally, defoamer in an amount between 0.01 and 0.50 percent by weight, and
  • the preferred dispersants include anionic or non-
  • ionic acrylic polymeric dispersing agents such as Tamol®
  • Rheology control agents include non- ionic thickeners such as
  • the surfactants include surfactants such as
  • Suitable defoamers include silicon modified glycol ester modified hydrocarbon types or fatty acid
  • the powder coating is dispersed in a mixture of water, dispersant, surfactant, and rheology control agent and then wet milled with a high energy dispersion system until the correct powder particle size is achieved.
  • Particle size reduction may be achieved with a high pass horizontal mill with zirconium or glass beads as the grinding media.
  • beads are the preferred grinding media. Other suitable methods may be used as well for particle size reduction. It is desirable that the slurry be milled at temperatures
  • the desired mean particle size of the dispersed powder is less than 7.5 ⁇ m and is preferably less than 5 ⁇ m.
  • the powder slurry composition is applied by means of a pump, such as a peristaltic pump, gear pump, diaphram
  • the packaging containers, which are coated with the powder slurry coatings according to the invention can be
  • metallic containers are coated with the powder coatings according to the invention.
  • These metallic containers may be two piece containers produced by first cupping and then drawing out the cup to form the container body.
  • the powder coatings according to the invention are employed for internal coating of the can bodies, which in this embodiement already have a base. A powder slurry coating is then applied to the
  • the end piece can then be attached to the cylinder thus formed.
  • the coating is also suitable for application to end pieces of the container. Scratch lines on easy-open ends furthermore may also be
  • the coating is cured at
  • Curing may take place in an oven, such as a tunnel oven, or by application of heat by other suitable
  • the container may be a three piece container produced from a coated sheet of metal .
  • the metal is coated by a suitable means, such as roller
  • the container is welded together, and then the powder slurry is applied to the weld seam, this coating is referred to as a side stripe coating.
  • this coating is referred to as a side stripe coating.
  • the end pieces are attached to the container.
  • the metal sheet is coated by roller coating.
  • the powder slurry coating is applied to the welded seam of the container. Coatings applied in this process are cured over an open flame at elevated temperatures of
  • the coatings were cured in a
  • the packaging containers can be made of the most diverse materials, such as, for example, aluminum, black sheet, tin sheet and various iron alloys, which are
  • a passivating coating based on compounds of nickel, chromium and tin is provided, if appropriate, with a passivating coating based on compounds of nickel, chromium and tin.
  • Containers of this type may be used for any purpose. Examples of such uses include utility containers for storage of paint, solvents, and cleaning products, or as
  • containers for foodstuffs and drinks for example for beer, juices, carbonated drinks, soups, vegetables, meat dishes, fish dishes and vegetables, or for animal foods.
  • powder slurry coatings are usually applied in a coating
  • thickness of 12 to 25 ⁇ m, preferably of from 12 to 18 ⁇ m.
  • the following ingredinents were combined to form a powder slurry.
  • the slurry was ground in a high pass

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Dispersion Chemistry (AREA)
  • Paints Or Removers (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Abstract

L'invention concerne une composition en coulis de poudre servant au revêtement d'un récipient. La composition comprend entre 20 et 50 pour cent en poids d'une composition de revêtement en poudre et une quantité d'eau comprise entre 50 et 80 pour cent en poids. Le revêtement en poudre comprend au moins une résine époxyde ayant un poids équivalent de l'époxyde compris entre 300 et 5500; au moins un durcisseur ayant plus qu'un groupe hydroxyle phénolique par molécule et un poids équivalent de l'hydroxyle (basée sur les groupes phénoliques OH) compris entre 100 et 500; et un catalyseur. La dimension granulométrique moyenne des particules de revêtement en poudre dans le coulis de poudre est comprise entre 4,0 et 7,5 νm. L'invention concerne également un procédé de revêtement de la partie interne d'un récipient et le produit revêtu obtenu par ce procédé.
PCT/US1997/022490 1996-12-31 1997-12-08 Composition de revetement en coulis de poudre pour recipient, procede de revetement d'un recipient et produit obtenu par ledit procede Ceased WO1998029465A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU57933/98A AU5793398A (en) 1996-12-31 1997-12-08 Powder slurry container coating composition, method for coating a container and article obtained thereby

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US77575496A 1996-12-31 1996-12-31
US77573596A 1996-12-31 1996-12-31
US08/775,735 1996-12-31
US08/775,754 1996-12-31

Publications (1)

Publication Number Publication Date
WO1998029465A1 true WO1998029465A1 (fr) 1998-07-09

Family

ID=27119085

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1997/022490 Ceased WO1998029465A1 (fr) 1996-12-31 1997-12-08 Composition de revetement en coulis de poudre pour recipient, procede de revetement d'un recipient et produit obtenu par ledit procede

Country Status (2)

Country Link
AU (1) AU5793398A (fr)
WO (1) WO1998029465A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001051569A1 (fr) * 2000-01-15 2001-07-19 Basf Coatings Ag Suspension de peinture pulverulente sans solvant organique, a viscosite intrinseque, son procede de production et son utilisation
WO2000069979A3 (fr) * 1999-05-19 2001-08-02 Basf Corp Composition de revetement en poudre mouillable pour traitement humide
EP1170341A3 (fr) * 2000-07-04 2002-10-02 Sto Ag Résine epoxyde pulvérulente a un composant pour revêtements
US6624238B1 (en) 1998-09-12 2003-09-23 Basf Coatings Ag Intrinsically viscous clear powder coating slurry which is free of organic solvents and external emulsifiers, method for producing said slurry and use of the same
US7041729B2 (en) 2000-11-09 2006-05-09 Basf Coatings Ag Structurally viscous powder clearcoat slurry free from organic solvents and external emulsifiers, method for producing the same the use thereof

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4678712A (en) * 1984-04-13 1987-07-07 The Dow Chemical Company Curable coating composition and epoxy resin adduct useful therein
US5379947A (en) * 1993-11-09 1995-01-10 Basf Corporation Process for producing a powder coating composition
US5605985A (en) * 1992-02-13 1997-02-25 Basf Lacke + Farben, Ag Powder coating and its use for internal coating of packaging containers

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4678712A (en) * 1984-04-13 1987-07-07 The Dow Chemical Company Curable coating composition and epoxy resin adduct useful therein
US5605985A (en) * 1992-02-13 1997-02-25 Basf Lacke + Farben, Ag Powder coating and its use for internal coating of packaging containers
US5379947A (en) * 1993-11-09 1995-01-10 Basf Corporation Process for producing a powder coating composition

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6624238B1 (en) 1998-09-12 2003-09-23 Basf Coatings Ag Intrinsically viscous clear powder coating slurry which is free of organic solvents and external emulsifiers, method for producing said slurry and use of the same
WO2000069979A3 (fr) * 1999-05-19 2001-08-02 Basf Corp Composition de revetement en poudre mouillable pour traitement humide
US6360974B1 (en) 1999-05-19 2002-03-26 Basf Corporation Powder slurry coating composition
AU769560B2 (en) * 1999-05-19 2004-01-29 Basf Corporation Powder slurry coating composition
WO2001051569A1 (fr) * 2000-01-15 2001-07-19 Basf Coatings Ag Suspension de peinture pulverulente sans solvant organique, a viscosite intrinseque, son procede de production et son utilisation
US6943210B2 (en) 2000-01-15 2005-09-13 Basf Coatings Ag Pseudoplastic powdered lacquer slurry free of organic solvents method for production and the use thereof
EP1170341A3 (fr) * 2000-07-04 2002-10-02 Sto Ag Résine epoxyde pulvérulente a un composant pour revêtements
US7041729B2 (en) 2000-11-09 2006-05-09 Basf Coatings Ag Structurally viscous powder clearcoat slurry free from organic solvents and external emulsifiers, method for producing the same the use thereof

Also Published As

Publication number Publication date
AU5793398A (en) 1998-07-31

Similar Documents

Publication Publication Date Title
US6177487B1 (en) Aqueous powder paint dispersions
EP1615966B1 (fr) Dispersions aqueuses et revetements
JPH11503478A (ja) 粉体透明ラッカー水性分散体
JP6393815B2 (ja) コーティング組成物
US5714264A (en) Aqueous powder coating dispersion for packaging containers
JP2017052564A (ja) 被覆容器装置、その製造方法
CA2220465A1 (fr) Dispersion aqueuse de peinture pulverulente
EP2912124B1 (fr) Composition de revêtement pulvérulente
CA2128003C (fr) Laque en poudre et utilisation de cette laque comme revetement interieur de contenants d'emballage
CA1185030A (fr) Methode de preparation d'enduits solubles a l'eau et thermodurcissables, et leur emploi
WO1998029465A1 (fr) Composition de revetement en coulis de poudre pour recipient, procede de revetement d'un recipient et produit obtenu par ledit procede
CA2112862C (fr) Composition de revetement par electrodeposition comportant des microparticules reticulees
JP4217380B2 (ja) 多層被覆を有する支持体およびその製造方法
JP2003164803A (ja) 塗膜形成方法
JPH11508308A (ja) 包装容器用の水性粉末ラッカー分散液
JP4708720B2 (ja) ホイール用熱硬化型粉体塗料、その塗料を使用してなる塗膜の形成方法、その塗装製品の製造方法及び塗装製品
KR19990044235A (ko) 분말 코팅제 및 패킹 용기의 내부 코팅을 위한 그의 용도
EP0714958A2 (fr) Procédé de préparation de compositions de revêtement à base de suspension fluide de poudre
KR101292354B1 (ko) 엔진블록용 에폭시 반광 분체도료 조성물, 그의 제조방법 및 도장방법
JPH06136317A (ja) 水性被覆組成物
WO2003087248A1 (fr) Revetement en poudre dispersee dans l'eau, procede de production correspondant, et procede d'echantillonnage de la couleur
JP2004283763A (ja) 塗膜形成法
JP2000219825A (ja) 粉体塗料組成物
AU706657B2 (en) Sterically stabilized nonaqueous dispersion, and coating composition based thereon
HK1016631A (en) Powder coating and its use for the internal coating of packing containers

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AL AU BA BB BG BR CA CN CU CZ EE GE HU IL IS JP KP KR LC LK LR LT LV MG MK MN MX NZ PL PT RO SG SK SL TR TT UA UZ VN YU AM AZ BY KG KZ MD RU TJ TM

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): GH KE LS MW SD SZ UG ZW AT BE CH DE DK ES FI FR GB GR IE IT LU MC NL PT SE BF BJ CF CG CI CM GA GN ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
NENP Non-entry into the national phase

Ref country code: CA

122 Ep: pct application non-entry in european phase