GB845259A - Improvements relating to the formation of coatings on metal surfaces - Google Patents
Improvements relating to the formation of coatings on metal surfacesInfo
- Publication number
- GB845259A GB845259A GB372/60A GB37260A GB845259A GB 845259 A GB845259 A GB 845259A GB 372/60 A GB372/60 A GB 372/60A GB 37260 A GB37260 A GB 37260A GB 845259 A GB845259 A GB 845259A
- Authority
- GB
- United Kingdom
- Prior art keywords
- film
- dried
- insoluble
- heating
- weight
- 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
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
- B05D7/16—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 using synthetic lacquers or varnishes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
-
- 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
-
- 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
- C23C22/24—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 containing hexavalent chromium compounds
- C23C22/26—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 containing hexavalent chromium compounds containing also organic compounds
- C23C22/28—Macromolecular compounds
-
- 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
- C23C22/82—After-treatment
- C23C22/83—Chemical after-treatment
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
An aqueous solution or dispersion consisting of polyacrylic acid, water, and 0,25-6% by weight of a hexavalent chronium compound (calculated as CrO3) is used to form a coating on a metal surface or phosphate-coated surface (see Group II). The polyacrylic acid, which preferably amounts to 0,5-4% by weight of the water, may be partially or completely neutralised with ammonia. Solutions containing chromic acid may be similarly neutralised. Other hexavalent chromium compounds which may be used are the dichromates of aluminium, cadmium, chromium, magnesium, manganese and strontium. The coating may be dried and rendered insoluble by heating.ALSO:A chromium-containing coating is formed on a metal surface or phosphate-coated surface by applying to the surface a film of an aqueous solution or dispersion consisting of polyacrylic acid, water, and 0.25-6% by weight of a hexavalent chromium compound (calculated as CrO3), drying the film and rendering the dried film insoluble by heating. The polyacrylic acid, which preferably amounts to 0.5-4% by weight of the water, may be partially or completely neutralised with ammonia. Solutions containing chromic acid may be similarly neutralised. Other hexavalent chromium compounds which may be used are the dichromates of aluminium, cadmium, chromium, magnesium, manganese and strontium. The film may be dried at room temperature and then heated at 200 DEG -500 DEG F. to render it insoluble; if the dried film is painted, the subsequent heating serves also to bake the paint. Alternatively, the film is both dried and rendered insoluble by heating. Metals which may be coated are iron, steel, zinc, copper, brass and aluminium.ALSO:A chromium-containing coating is formed on a metal surface or phosphate-coated surface by applying to the surface a film of an aqueous solution or dispersion consisting of polyacrylic acid, water, and 0.25-6% by weight of a hexavalent chromium compound (calculated as CrO3), drying the film and rendering the dried film insoluble by heating. The polyacrylic acid, which preferably amounts to 0.5-4% by weight of the water, may be partially or completely neutralized with ammonia. Solutions containing chromic acid may be similarly neutralized. Other hexavalent chromium compounds which may be used are the dichromates of aluminium, cadmium, chromium, magnesium, manganese and strontium. The film may be dried at room temperature and then heated at 200 DEG -500 DEG F. to render it insoluble; if the dried film is painted, the subsequent heating serves also to bake the paint. Alternatively, the film is both dried and rendered insoluble by heating. Metals which may be coated are iron, steel, zinc, copper, brass and aluminium.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US343202XA | 1955-07-01 | 1955-07-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB845259A true GB845259A (en) | 1960-08-17 |
Family
ID=21875685
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB372/60A Expired GB845259A (en) | 1955-07-01 | 1956-07-02 | Improvements relating to the formation of coatings on metal surfaces |
Country Status (2)
| Country | Link |
|---|---|
| BE (1) | BE548963A (en) |
| GB (1) | GB845259A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3505128A (en) * | 1964-10-07 | 1970-04-07 | Yawata Seitetsu Kk | Aqueous metal-coating composition |
-
1956
- 1956-06-23 BE BE548963D patent/BE548963A/en unknown
- 1956-07-02 GB GB372/60A patent/GB845259A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| BE548963A (en) | 1956-07-14 |
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