GB920497A - Powdered coating compositions and the method for their preparation - Google Patents

Powdered coating compositions and the method for their preparation

Info

Publication number
GB920497A
GB920497A GB918059A GB918059A GB920497A GB 920497 A GB920497 A GB 920497A GB 918059 A GB918059 A GB 918059A GB 918059 A GB918059 A GB 918059A GB 920497 A GB920497 A GB 920497A
Authority
GB
United Kingdom
Prior art keywords
resin
composition
oxide
powdered
aluminium
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
GB918059A
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.)
Polymer Corp
Original Assignee
Polymer 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 Polymer Corp filed Critical Polymer Corp
Publication of GB920497A publication Critical patent/GB920497A/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
    • B05D1/00—Processes for applying liquids or other fluent materials
    • B05D1/18—Processes for applying liquids or other fluent materials performed by dipping
    • B05D1/22—Processes for applying liquids or other fluent materials performed by dipping using fluidised-bed technique
    • B05D1/24—Applying particulate materials
    • 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
    • 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
    • B05D2504/00—Epoxy polymers

Abstract

A free-flowing film-forming coating composition for fusion coating processes comprises particles of a fusible resin and a powdered inorganic non-fibrous solid which is infusible at the temperatures used for fusing the resin, viz. 200 DEG to 1000 DEG F., at least some of the resin forming a matrix surrounding each of the particles of the inorganic solid, and all the particles of the composition having a size in the range from 25 to 600 microns, the composition having a "fusion coating index" in the range from 250 DEG to 600 DEG F. The "fusion coating index" is the temperature to which an aluminium rod of specified dimensions must be pre-heated to obtain fusion of the composition in a continuous film coating the rod when immersed in a fluidized bed of the powder, under specified conditions. The composition may be made by intensively mixing the molten resin with the inorganic solid, cooling and pulverizing. The resin component may be one or more "B" stage epoxy resins, together with a curing agent, or a silicone resin, a nylon or a polyethylene resin. The inorganic solid may be, e.g. zinc oxide or sulphide, titanium dioxide, lithopone, chromium oxide, an iron oxide, powdered aluminium, zinc or copper, calcium carbonate or metasilicate, magnesium oxide, aluminium silicate or oxide, barium sulphate, slate, or silicon carbide. Examples describe the preparation of powdered mixtures of epoxy resins, metaphenylene diamine or dicyandiamide and calcium carbonate, rutile or calcium metasilicate, and of a silicone resin and rutile, and the application of these to metal articles, a steel plate and an aluminium rod by the fluidized bed technique. Specification 759,214 is referred to.ALSO:A free-flowing film-forming coating composition for fusion coating processes comprises particles of a fusible resin and a powdered inorganic non-fibrous solid which is infusible at the temperatures used for fusing the resin, viz. 200 DEG to 1000 DEG F., at least some of the resin forming a matrix surrounding each of the particles of the inorganic solid, and all the particles of the composition having a size in the range from 25 to 600 microns, the composition having a "fusion coating index" in the range from 250 DEG to 600 DEG F. The "fusion coating index" is the temperature to which an aluminium rod of specified dimensions must be pre-heated to obtain fusion of the composition in a continuous film coating the rod when immersed in a fluidized bed of the powder, under specified conditions. The composition may be made by intensively mixing the molten resin with the inorganic solid, cooling and pulverizing. The resin component may be one or more "B" stage epoxy resins, together with a curing agent, or a silicone resin, a nylon or a polyethylene resin. The inorganic solid may be, e.g. zinc oxide or sulphide, titanium dioxide, lithopone, chromium oxide, an iron oxide, powdered aluminium, zinc or copper, calcium carbonate or metasilicate, magnesium oxide, aluminium silicate or oxide, barium sulphate, slate, or silicon carbide. Examples describe the preparation of powdered mixtures of epoxy resins, metaphenylene diamine or dicyandiamide and calcium carbonate, rutile or calcium metasilicate, and of methylphenylpolysiloxane or diphenylpolysiloxane resins and rutile. Specification 759,214 is referred to.
GB918059A 1958-04-22 1959-03-17 Powdered coating compositions and the method for their preparation Expired GB920497A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US73004458A 1958-04-22 1958-04-22

Publications (1)

Publication Number Publication Date
GB920497A true GB920497A (en) 1963-03-06

Family

ID=24933672

Family Applications (1)

Application Number Title Priority Date Filing Date
GB918059A Expired GB920497A (en) 1958-04-22 1959-03-17 Powdered coating compositions and the method for their preparation

Country Status (2)

Country Link
DE (1) DE1519266A1 (en)
GB (1) GB920497A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2500004A1 (en) * 1981-02-19 1982-08-20 Ducati Elettrotecnica Spa PULVERULENT COMPOSITION FOR SELF-EXTINGUISHABLE COATINGS BASED ON EPOXY RESINS
GB2349106A (en) * 1999-04-17 2000-10-25 Rolls Royce Plc Laser drilling

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3694243A (en) * 1969-12-22 1972-09-26 Ncr Co Coating of particles and process for manufacturing said coating

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2500004A1 (en) * 1981-02-19 1982-08-20 Ducati Elettrotecnica Spa PULVERULENT COMPOSITION FOR SELF-EXTINGUISHABLE COATINGS BASED ON EPOXY RESINS
GB2349106A (en) * 1999-04-17 2000-10-25 Rolls Royce Plc Laser drilling

Also Published As

Publication number Publication date
DE1519266A1 (en) 1969-10-02

Similar Documents

Publication Publication Date Title
US3102043A (en) Fluidized bed coating method
US3175935A (en) Method of making reflective particles and resultant article
US3269975A (en) Tetracarboxylic acid hardeners for epoxy resins and powdered epoxy resin compositions including such hardeners
ES2198503T3 (en) REAGENT COMPOSITIONS OF RESIN, SPRAYABLE.
GB862494A (en) Improvements in and relating to protective coatings
MXPA01003728A (en) Powder coating compositions.
DE1255838B (en) Process for the production of coatings
US3639345A (en) Shelf-stable epoxy resin composition of epoxy resin and adduct of trimellitic anhydride and polyalkylene glycol
KR890006720A (en) Surface treatment method of molded article of liquid crystalline polyester resin
US3051586A (en) Solid lubricant film resistant to corrosion
US2958609A (en) Process for the preparation of protective coatings
GB920497A (en) Powdered coating compositions and the method for their preparation
US3384610A (en) Fluidized bed coatings containing powdered epoxy resin compositions and method for preparing the same
US3338863A (en) Powdered coating compositions and the method for their application
EP0038292B1 (en) Use of synthetic crystalline calcium silicate
US3151095A (en) Process of mixing glass flakes with a normally liquid resin in frozen, comminuted form
GB1069176A (en) Preparation of polyamides
CA1120253A (en) Zinc-rich powders
US3645960A (en) Powdered coating compositions and the method for their application
JPS5825353B2 (en) powder paint
GB2119390A (en) Powder coating composition
JPS59159860A (en) Thermosetting powder coating composition
GB816312A (en) Improvements in or relating to the production of compound bearings having a synthetic resin layer
JPS5830907B2 (en) How to powder coat metal pipes
US4329325A (en) Cyanuric chloride mixtures and process for producing same