GB1469068A - Coating bath for cataphoretic coating of ferrous metal surfaces - Google Patents

Coating bath for cataphoretic coating of ferrous metal surfaces

Info

Publication number
GB1469068A
GB1469068A GB4885575A GB4885575A GB1469068A GB 1469068 A GB1469068 A GB 1469068A GB 4885575 A GB4885575 A GB 4885575A GB 4885575 A GB4885575 A GB 4885575A GB 1469068 A GB1469068 A GB 1469068A
Authority
GB
United Kingdom
Prior art keywords
coating
film forming
forming agent
metal
cataphoretic
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.)
Expired
Application number
GB4885575A
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 Farben und Fasern AG
Original Assignee
BASF Farben und Fasern AG
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 Farben und Fasern AG filed Critical BASF Farben und Fasern AG
Publication of GB1469068A publication Critical patent/GB1469068A/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING 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
    • C09D5/00Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/44Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes for electrophoretic applications
    • C09D5/4488Cathodic paints
    • C09D5/4492Cathodic paints containing special additives, e.g. grinding agents

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Molecular Biology (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Paints Or Removers (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Epoxy Resins (AREA)
  • Chemical Treatment Of Metals (AREA)

Abstract

1469068 Electrocoating compositions BASF FARBEN & FASERN AG 27 Nov 1975 [5 Dec 1974] 48855/75 Headings C3B and C3P [Also in Division C7] A cataphoretic coating is produced on a ferrous metal (iron or steel) surface by connecting it as cathode in a coating bath including an aqueous solution and/or dispersion of a salt of a cationic film forming agent, and a soluble metal salt, e.g. sulphate, nitrate, acetate, formate, lactate, phosphate or chloride of Cu, Ag, Co, Cd, Ni, Sn, Sb, Zn or Cr, to produce metal ions, e.g. in a concentration between 1 and 2000 p.p.m. based upon the film forming agent, whose potential in the electrochemical series is higher than that of the ferrous metal, or which are capable of deposition on the surface as the result of an overvoltage, then stoving the coating formed, e.g. at 80‹ to 250‹ C. Prior to coating, the surface may be immersed in or spraying with the coating bath, and may be zinc phosphated. Preferably auxiliary anodes of the same metal are used for maintaining the metal ion concentration constant. The film forming agent may be a reaction product of an epoxy resin with a Mannich base consisting of a condensed phenol, a secondary amine having a hydroxyalkyl group (e.g. di-2-methoxyethylamine and diethanolamine) and formaldehyde; a reaction product of an epoxy resin with a diisocyanate; or a copolymerisate in which 3 to 50% of at least one mono- or bicyclic compound having a 5- or 6- membered heterocycle containing 1 to 3 heteroatoms of which one is N carrying a vinyl group, 3 to 30% of at least one amide, (oxy)alkylamide and/or oxyalkylamide of (meth)acrylic acid, and 20 to 94% of at least one alkyl ester of (meth)- acrylic acid and/or at least one (alkyl)vinylbenzene (optionally with the addition of not more than 30% of at least one ethylene unsaturated comonomer) are incorporated by polymerization. The film forming agent can be dissolved or dispersed in water by combination with an acid, e.g. HCl, H 2 SO 4 , H 3 PO 4 , acetic, formic, citric, lactic, maleic or phthalic acid (or anhydrides thereof). Other resins capable of cataphoretic deposition may be mixed with the film forming agent: e.g. amino or phenolic condensates, epoxy or alkyl resins and/or polyurethanes. Pigments, e.g. talcum and soot, fillers, hardening catalysts, flow and adhesion improving and anti-foaming agents, solvents such as isopropanol and butanol, tetrahydrofuran, aliphatic and/or aromatic hydrocarbons, esters/ ethers may also be added.
GB4885575A 1974-12-05 1975-11-27 Coating bath for cataphoretic coating of ferrous metal surfaces Expired GB1469068A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19742457437 DE2457437B2 (en) 1974-12-05 1974-12-05 COATING BATH FOR CATAPHORETIC COATING OF IRON METAL SURFACES

Publications (1)

Publication Number Publication Date
GB1469068A true GB1469068A (en) 1977-03-30

Family

ID=5932536

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4885575A Expired GB1469068A (en) 1974-12-05 1975-11-27 Coating bath for cataphoretic coating of ferrous metal surfaces

Country Status (11)

Country Link
JP (1) JPS5930752B2 (en)
AT (1) AT346986B (en)
BE (1) BE836333A (en)
BR (1) BR7507981A (en)
DE (1) DE2457437B2 (en)
ES (1) ES443393A1 (en)
FR (1) FR2293501A1 (en)
GB (1) GB1469068A (en)
IT (1) IT1050746B (en)
NL (1) NL186869C (en)
SE (1) SE410016B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2129807A (en) * 1982-09-18 1984-05-23 Nippon Paint Co Ltd Cationic electrocoating paint compositions
AU618101B2 (en) * 1988-07-06 1991-12-12 Imperial Chemical Industries Plc Coating process and composition

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5381535A (en) * 1976-11-26 1978-07-19 Shinto Paint Co Ltd Cationic coating composition for electrodeposition
US4115226A (en) * 1977-04-06 1978-09-19 Ppg Industries, Inc. Cataphoretic electrodeposition baths containing water-soluble lead salts
DE2751498B2 (en) * 1977-11-18 1979-08-30 Basf Farben + Fasern Ag, 2000 Hamburg Coating bath for the cataphoretic coating of surfaces electrically. conductive substrates
JPS5811514B2 (en) * 1979-05-02 1983-03-03 日本ペイント株式会社 How to protect metal surfaces
DE3045251C2 (en) * 1980-12-01 1984-02-23 Basf Farben + Fasern Ag, 2000 Hamburg Synthetic resin with complex bound copper
DE3124088A1 (en) * 1981-06-19 1983-01-05 Basf Ag, 6700 Ludwigshafen BATH COMPOSITION FOR CATAPHORETIC ELECTRO DIP PAINTING
DE3170652D1 (en) * 1981-12-22 1985-06-27 Wuelfing Lackwerke Method of producing water-based heat-curable lacquers for use in cathodic electro-deposition, and use thereof
JPS61193821U (en) * 1985-05-28 1986-12-02
CA2131593A1 (en) * 1993-09-17 1995-03-18 Peter D. Clark Electrodeposition coating composition comprising zinc compounds for improved throw power
DE19637559A1 (en) * 1996-09-14 1998-03-26 Basf Coatings Ag Aqueous electrodeposition paints, their use in processes for coating electrically conductive substrates and the use of silver ions and / or elemental silver in aqueous electrodeposition paints

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA986639A (en) 1971-10-28 1976-03-30 Robert R. Zwack Cationic electrodepositable compositions

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2129807A (en) * 1982-09-18 1984-05-23 Nippon Paint Co Ltd Cationic electrocoating paint compositions
AU618101B2 (en) * 1988-07-06 1991-12-12 Imperial Chemical Industries Plc Coating process and composition

Also Published As

Publication number Publication date
FR2293501A1 (en) 1976-07-02
FR2293501B1 (en) 1979-06-22
NL7514187A (en) 1976-06-09
ES443393A1 (en) 1977-05-01
IT1050746B (en) 1981-03-20
JPS5930752B2 (en) 1984-07-28
AT346986B (en) 1978-12-11
DE2457437A1 (en) 1976-06-10
NL186869C (en) 1991-03-18
SE410016B (en) 1979-09-17
SE7513670L (en) 1976-06-08
JPS5188530A (en) 1976-08-03
NL186869B (en) 1990-10-16
DE2457437B2 (en) 1978-02-23
ATA923875A (en) 1978-04-15
BR7507981A (en) 1976-09-14
BE836333A (en) 1976-04-01

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Legal Events

Date Code Title Description
PS Patent sealed
PE20 Patent expired after termination of 20 years

Effective date: 19951126