GB1044654A - Metal coating process and coating compositions - Google Patents

Metal coating process and coating compositions

Info

Publication number
GB1044654A
GB1044654A GB1219463A GB1219463A GB1044654A GB 1044654 A GB1044654 A GB 1044654A GB 1219463 A GB1219463 A GB 1219463A GB 1219463 A GB1219463 A GB 1219463A GB 1044654 A GB1044654 A GB 1044654A
Authority
GB
United Kingdom
Prior art keywords
acid
compositions
diammonium phosphate
volume
polytetrafluoroethylene
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
GB1219463A
Inventor
Edward Henry Grice-Hutchinson
Denis Nicholas Speyer
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.)
Imperial Chemical Industries Ltd
Original Assignee
Imperial Chemical Industries Ltd
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 Imperial Chemical Industries Ltd filed Critical Imperial Chemical Industries Ltd
Priority to GB1219463A priority Critical patent/GB1044654A/en
Priority to FR969082A priority patent/FR1386898A/en
Publication of GB1044654A publication Critical patent/GB1044654A/en
Expired 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
    • C09D127/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Coating compositions based on derivatives of such polymers
    • 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
    • B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
    • B05D5/08—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain an anti-friction or anti-adhesive surface
    • B05D5/083—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain an anti-friction or anti-adhesive surface involving the use of fluoropolymers
    • 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
    • C09D127/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Coating compositions based on derivatives of such polymers
    • C09D127/02—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment
    • C09D127/12—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
    • C09D127/18—Homopolymers or copolymers of tetrafluoroethene
    • 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
    • C09D5/082—Anti-corrosive paints characterised by the anti-corrosive pigment
    • C09D5/084—Inorganic compounds
    • 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
    • B05D2301/00—Inorganic additives or organic salts thereof
    • B05D2301/10—Phosphates, phosphoric acid or organic salts thereof

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Paints Or Removers (AREA)
  • Laminated Bodies (AREA)

Abstract

Compositions for coating metal substrates comprise an aqueous dispersion of polytetra-fluoroethylene, substantially free from chromium compounds, and a phosphoric acid or ammonium salt thereof in amount of 2 to 10% weight/volume (gram/millilitre) based on the volume of the liquid phase of the dispersion. The phosphoric acid may be orthophosphoric acid, and preferred salts are the di- and triammonium phosphates, e.g. mixtures of diammonium phosphate with ammonia. The dispersions may also contain pigments and fillers, and may be used to coat metals, e.g. metal cooking utensils or blanks from which cooking utensils may be formed. Examples describe aqueous dispersions of polytetrafluoroethylene containing (1 to 3) diammonium phosphate and (4) orthophosphoric acid.ALSO:Metal substrates are coated with compositions comprising an aqueous dispersion of polytetrafluoro-ethylene free from chromium compounds, and a phospheric acid or ammonium salt thereof in amount of 2 to 10 per cent weight/volume (gram/millilitre) based on the volume of the liquid phase of the dispersion. Specified metals are aluminium and alloys thereof, copper, brass phosphor-bronze and steel, e.g. in the form of cooking utensils or blanks from which such utensils may be formed. The preferred phospheric acid is orthophospheric acid, and specified salts are di- and triammonium phosphates, e.g. mixtures of diammonium phosphate with ammonia. One or more coats of polytetrafluoroethylene dispersion free from the phosphorus compounds may be applied over the prime coat, each coat being dried and sintered before further application. Examples describe the application to aluminium blanks of compositions comprising polytetrafluoroethylene and (1 and 2) diammonium phosphate and (4) orthophosphoric acid; and to aluminium alloy, copper, brass, phosphor-bronze and steel sheets of compositions comprising (3) polytetrafluoroethylene and diammonium phosphate.
GB1219463A 1963-03-27 1963-03-27 Metal coating process and coating compositions Expired GB1044654A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB1219463A GB1044654A (en) 1963-03-27 1963-03-27 Metal coating process and coating compositions
FR969082A FR1386898A (en) 1963-03-27 1964-03-27 Method and composition for coating a metal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1219463A GB1044654A (en) 1963-03-27 1963-03-27 Metal coating process and coating compositions

Publications (1)

Publication Number Publication Date
GB1044654A true GB1044654A (en) 1966-10-05

Family

ID=10000071

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1219463A Expired GB1044654A (en) 1963-03-27 1963-03-27 Metal coating process and coating compositions

Country Status (1)

Country Link
GB (1) GB1044654A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4038234A (en) 1970-12-11 1977-07-26 Imperial Chemical Industries Limited Aqueous dispersion of fluorocarbon polymer and halogen-containing complex phosphate of aluminum
US4104225A (en) 1971-11-26 1978-08-01 Imperial Chemical Industries Limited Method of making a coating composition containing a fluorocarbon polymer resin and an aluminum containing binder
EP0256908A1 (en) * 1986-07-16 1988-02-24 Sermatech International Inc. Composition and process for coating metallic parts and coated parts
EP0429180A2 (en) * 1989-10-23 1991-05-29 Courtaulds Aerospace, Inc. Non-toxic corrosion inhibitive compositions and method for inhibiting corrosion

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4038234A (en) 1970-12-11 1977-07-26 Imperial Chemical Industries Limited Aqueous dispersion of fluorocarbon polymer and halogen-containing complex phosphate of aluminum
US4104225A (en) 1971-11-26 1978-08-01 Imperial Chemical Industries Limited Method of making a coating composition containing a fluorocarbon polymer resin and an aluminum containing binder
EP0256908A1 (en) * 1986-07-16 1988-02-24 Sermatech International Inc. Composition and process for coating metallic parts and coated parts
EP0429180A2 (en) * 1989-10-23 1991-05-29 Courtaulds Aerospace, Inc. Non-toxic corrosion inhibitive compositions and method for inhibiting corrosion
EP0429180A3 (en) * 1989-10-23 1991-11-06 Products Research And Chemical Corporation Non-toxic corrosion inhibitive compositions and method for inhibiting corrosion

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