GB1431843A - Processes for coating metal surfaces - Google Patents

Processes for coating metal surfaces

Info

Publication number
GB1431843A
GB1431843A GB2784373A GB2784373A GB1431843A GB 1431843 A GB1431843 A GB 1431843A GB 2784373 A GB2784373 A GB 2784373A GB 2784373 A GB2784373 A GB 2784373A GB 1431843 A GB1431843 A GB 1431843A
Authority
GB
United Kingdom
Prior art keywords
coating
resin
metal surface
litre
resins
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
GB2784373A
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.)
Henkel Corp
Original Assignee
Amchem Products 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
Priority claimed from US05/262,833 external-priority patent/US3960610A/en
Application filed by Amchem Products Inc filed Critical Amchem Products Inc
Publication of GB1431843A publication Critical patent/GB1431843A/en
Expired legal-status Critical Current

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
    • B05D7/14—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 to metal, e.g. car bodies
    • B05D7/142—Auto-deposited coatings, i.e. autophoretic coatings
    • 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
    • B05D7/14—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 to metal, e.g. car bodies
    • B05D7/142—Auto-deposited coatings, i.e. autophoretic coatings
    • B05D7/144—After-treatment of auto-deposited coatings
    • 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
    • C09D5/08—Anti-corrosive paints
    • C09D5/088—Autophoretic paints
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C22/05—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
    • C23C22/06—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Laminated Bodies (AREA)
  • Paints Or Removers (AREA)

Abstract

1431843 Coated products AMCHEM PRODUCTS INC 12 June 1973 [14 June 1972] 27843/73 Heading B2E An acid-etchable metal surface is coated by immersing the surface an acidic aqueous resin dispersion, in which a primer-coating resin is dispersed in aqueous phase containing an acid which etches the metal surface to generate metal ions, which destable the otherwise-stable dispersion adjacent the metal surface to deposit a substantially uniform organic/ inorganic coating incorporating the primer resin, maintaining the metal surface in the dispersionatsucha temperature and for such a time as to form the organic/inorganic coating having the desired weight and/or thickness, removing the less coated surface and, if desired aftertreating the resultant coating to consolidate it, applying at least one further siccative coating, and hardening the siccative coating to integrate the resultant composite coating upon the underlying metal surface. The metal surface may be zinciferrous or ferriferrous. The primer resin dispersion may have a pH of from 1.6 to 3.8 and contain from 04 to 5.0 grams/litre of simple fluoride (calculated as F<SP>-</SP>), from 0.3 to 3.0 grams/litre of hydrogen peroxide and from 5 to 500 grams/litre of the dispersed resin. The dispersing agent may be added to the coating composition continuously or intermittently to avoid metal ion concentration build-up and/or metal ion may be removed to prevent concentration thereof from building-up, the effective concentration of the stabilising metal ions being maintained at not more than 3 grams per litre when using the former technique and not more than 1.5 grams per litre when using the second technique alone. The resin dispersion may have a pH of 1.6 to 5.0 and may initially contain at least a significant amount of ferric iron. The coating may be rinsed with an after-rinse solution containing hexavalent chromium. The siccative coating may be formed from any natural or synthetic film-forming resinous material and may be applied in paint or powder form. Suitable materials are linseed oil, tung oil, oil-modified alkyd resins, epoxy resins, vinyl acetyls, polyesters, polyamides, phenolic resins, polyvinyl chloride, polyvinyl acetate, styrene-butadiene copolymers, cellulosic resins and polyacrylic resins. They may be applied by brushing, dipping, flow coating, roller coating, pressure cortain coating, spraying or by electrophoretic coating. The following materials may be applied in powder form; polyvinyl chloride, epoxy resin, polyamide, cellulosic resin, polyester resin, polyethylene, polypropylene, polyacrylic resin, fluorocarbon (e.g. polytetrafluoroethylene and polyfluoroethylene-propylene) resin and chlorinated polyethers. Such coatings may be applied by a flow coating, flocking, fluidised bed or electrostatic spraying. The siccative coating may comprise at least one intermediate coat and a top coat. The method is of particular use in coating car bodies.
GB2784373A 1972-06-14 1973-06-12 Processes for coating metal surfaces Expired GB1431843A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/262,833 US3960610A (en) 1966-06-01 1972-06-14 Process for coating metals

Publications (1)

Publication Number Publication Date
GB1431843A true GB1431843A (en) 1976-04-14

Family

ID=22999258

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2784373A Expired GB1431843A (en) 1972-06-14 1973-06-12 Processes for coating metal surfaces

Country Status (7)

Country Link
JP (1) JPS49100116A (en)
BE (1) BE800920A (en)
BR (1) BR7304447D0 (en)
CA (1) CA1001910A (en)
DE (1) DE2330131B2 (en)
FR (1) FR2187943B1 (en)
GB (1) GB1431843A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113441375A (en) * 2021-06-25 2021-09-28 东风汽车集团股份有限公司 Coating structure of automobile body and preparation method thereof

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU516824B2 (en) * 1976-02-17 1981-06-25 Ford Motor Company Of Canada Limited Coagulating coating composition
FR2366379A1 (en) * 1976-09-30 1978-04-28 Mecanique Soc Ind De PROCESS FOR APPLYING A REFLECTIVE COATING ON A METAL SURFACE AND SURFACE OBTAINED BY IMPLEMENTING THE PROCESS
EP0925121B1 (en) * 1996-09-03 2001-06-20 E.I. Du Pont De Nemours And Company Motor vehicle multilayered enamelling process
US20080160199A1 (en) * 2006-12-01 2008-07-03 Manesh Nadupparambil Sekharan High peroxide autodeposition bath

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3528860A (en) * 1967-10-04 1970-09-15 Oakite Prod Inc Surface coating compositions and their use
GB1309356A (en) * 1971-06-29 1973-03-07 Nippon Paint Co Ltd Method for applying a primer paint coating

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113441375A (en) * 2021-06-25 2021-09-28 东风汽车集团股份有限公司 Coating structure of automobile body and preparation method thereof

Also Published As

Publication number Publication date
CA1001910A (en) 1976-12-21
FR2187943B1 (en) 1976-09-17
BE800920A (en) 1973-10-01
FR2187943A1 (en) 1974-01-18
DE2330131B2 (en) 1978-02-09
BR7304447D0 (en) 1974-08-15
DE2330131A1 (en) 1974-01-10
AU5555373A (en) 1974-11-14
JPS49100116A (en) 1974-09-21

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Legal Events

Date Code Title Description
PS Patent sealed
433D Application made for revocation (sect. 33/1949)
433G Case decided by the comptroller ** application refused (sect. 33/1949)
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee