GB862494A - Improvements in and relating to protective coatings - Google Patents

Improvements in and relating to protective coatings

Info

Publication number
GB862494A
GB862494A GB14890/58A GB1489058A GB862494A GB 862494 A GB862494 A GB 862494A GB 14890/58 A GB14890/58 A GB 14890/58A GB 1489058 A GB1489058 A GB 1489058A GB 862494 A GB862494 A GB 862494A
Authority
GB
United Kingdom
Prior art keywords
coating
resins
resin
dicyandiamide
epoxy resin
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
GB14890/58A
Inventor
Erwin Gemmer
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.)
Knapsack AG
Knapsack Griesheim AG
Original Assignee
Knapsack AG
Knapsack Griesheim 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 Knapsack AG, Knapsack Griesheim AG filed Critical Knapsack AG
Publication of GB862494A publication Critical patent/GB862494A/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
    • 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
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
    • H02K15/12—Impregnating, heating or drying of windings, stators, rotors or machines

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Power Engineering (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Paints Or Removers (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Coating Apparatus (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Epoxy Resins (AREA)

Abstract

Epoxy resins cross-linked with low-molecular-weight polyamides, dicyandiamide, ethylene diamine or diethylene diamine, or modified with liquid polysulphide polymers are applied to surfaces by the fluidized-bed process in which the heated surface is contacted with a bed of particles of the resin fluidized by an ascending stream of gas. When certain polyamides are used, cross-linking may proceed if the surface is cooled immediately after coating and kept for a period at room temperature; otherwise the coating may be further heated in an oven. Examples of coating compositions include (1) epoxy resin (bis-phenol A/epichlorhydrin), and dicyandiamide for application to steel plates (2), (3), (4), epoxy resin and dicyandiamide for application to aluminium rods, (5) epoxy resin, aluminium oxide filler as an abrasive and dicyandiamide for application to steel plates, and (9) epoxy resin and polyamide (polymerized dilinoleic acid/ethylene diamine) for application to aluminium rods. In Example (10) an aluminium rod is coated with a composition comprising 500 parts of a phenol-formaldehyde resin, 10 parts of silica and 1 part of a silicone resin. Specification 807,238 also is referred to.ALSO:Articles are coated with a coherent layer of thermosetting material by heating the article to a temperature above the softening point of the material, contacting it with a bed of the said material fluidised by an ascending current of gas, and then curing the coating. Suitable coating materials are phenolformaldehyde resins, urea - formaldehyde resins, unsaturated polyester resins, alkyd resins, melamine-formaldehyde resins, epoxy resins, and silicone resins, which may contain high melting-point fillers such as asbestos, slate, metal powders, pigments or abrasives; curing agents; thermoplastic resins e.g. cellulose acetate sulphate; or liquid polysulphide polymers. A top coat of a thermoplastic material e.g. a polyamide may be applied while the thermosetting coating is still in a fused state so that mixing occurs. The method is suitable for coating articles of iron, steel, aluminium, magnesium, copper, zinc, alloys thereof, glass, ceramics and wood. The surfaces may be roughened e.g. by shot-blasting before application. Examples are given of powdered coating compositions containing epoxy resin and dicyandiamide; epoxy resin, dicyandiamide and aluminium oxide; silicone resin; epoxy resin and polyamide; and phenolformaldehyde resin, silica, and silicone resin. The article may be heated to a higher temperature after coating in order to cure the resin. Articles which may be coated include hand-tools, tubular sleeves, hooks, clamps, plating racks, anode hangers, ventilators, gears, pump housings, sieves, screens, switches, electrical fittings, tanks, protective caps, bushings, bellows, fan blades and guards. Examples describe coating plates and rods. Specification 807,238 also is referred to.
GB14890/58A 1953-05-08 1958-05-09 Improvements in and relating to protective coatings Expired GB862494A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEK18002A DE933019C (en) 1953-05-08 1953-05-08 Method and device for the production of protective coatings from powdery thermoplastics
DEK24331A DE972650C (en) 1953-05-08 1954-12-11 Process for the production of protective coatings by means of powdery fusible substances

Publications (1)

Publication Number Publication Date
GB862494A true GB862494A (en) 1961-03-08

Family

ID=46728145

Family Applications (3)

Application Number Title Priority Date Filing Date
GB13462/54A Expired GB759214A (en) 1953-05-08 1954-05-07 Protective coatings on articles and a process for applying said coatings
GB35509/55A Expired GB807238A (en) 1953-05-08 1955-12-09 Protective coatings for articles and a process of preparing said coatings
GB14890/58A Expired GB862494A (en) 1953-05-08 1958-05-09 Improvements in and relating to protective coatings

Family Applications Before (2)

Application Number Title Priority Date Filing Date
GB13462/54A Expired GB759214A (en) 1953-05-08 1954-05-07 Protective coatings on articles and a process for applying said coatings
GB35509/55A Expired GB807238A (en) 1953-05-08 1955-12-09 Protective coatings for articles and a process of preparing said coatings

Country Status (5)

Country Link
BE (2) BE542094A (en)
CH (2) CH330942A (en)
DE (2) DE933019C (en)
FR (2) FR1100263A (en)
GB (3) GB759214A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998009736A1 (en) * 1996-09-03 1998-03-12 Ema Elektro-Maschinen Schultze Gmbh & Co. Kg Workpiece coating process
CN113600433A (en) * 2021-06-28 2021-11-05 中国水利水电科学研究院 Inner coating for corrosion prevention of steel pipe and coating process thereof

Families Citing this family (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3090696A (en) * 1954-12-11 1963-05-21 Knapsack Ag Fluidized bed coating process for coating with thermosetting materials
DE1061861B (en) * 1955-10-24 1959-07-23 Alfred Grossauer Waterproof cable entry for installation purposes
DE1021049B (en) * 1956-01-05 1957-12-19 Guenther Spelsberg K G Waterproof cable socket
US3004861A (en) * 1956-01-12 1961-10-17 Polymer Corp Methods and apparatus for applying protective coatings
DE1111264B (en) * 1956-02-17 1961-07-20 Guenther Spelsberg K G One-piece sealing body made of elastic material
DE1021050B (en) * 1956-05-28 1957-12-19 Guenther Spelsberg K G Cable socket
GB852638A (en) * 1956-06-15 1960-10-26 Telegraph Constr & Main Co Improvements in or relating to coating articles with plastic materials
US3186860A (en) * 1956-11-13 1965-06-01 Phillips Petroleum Co Process for coating surfaces
US3028251A (en) * 1956-11-20 1962-04-03 Polymer Corp Method of coating an article with a powdered resin composition and method of making the composition
US3282249A (en) * 1957-08-06 1966-11-01 Polymer Corp Apparatus for coating filamentary metal article
US3032816A (en) * 1957-11-07 1962-05-08 Polymer Corp Coating process and apparatus
US2981631A (en) * 1957-11-13 1961-04-25 Polymer Corp Fluidized bed coating method for forming a foam
DE1242308B (en) * 1957-12-26 1967-06-15 Knapsack Ag Powdery coating mass
US2969038A (en) * 1958-03-05 1961-01-24 Michigan Chrome And Chemical C Fluidized bed apparatus
US3085034A (en) * 1958-07-10 1963-04-09 Polymer Processes Inc Coating process
DE1153457B (en) * 1958-07-21 1963-08-29 Hollandse Signaalapparaten Bv Electromagnetic rotary step drive
DE1106089B (en) * 1958-10-30 1961-05-04 Hansheinrich Pontani Dr Ing Process for the production of vinyl records that can be played on one side
US2987413A (en) * 1959-03-23 1961-06-06 Polymer Corp Process and apparatus for producing continuous coatings
NL254742A (en) * 1959-08-11 1900-01-01
DE1209283B (en) * 1959-12-21 1966-01-20 Lucas Industries Ltd Device for applying a thermoplastic coating to the outer surfaces of spiral spring windings
DE1271379B (en) * 1960-10-13 1968-06-27 Telefunken Patent Process for the production of hollow bodies from thermoplastic material by vortex sintering
NL273322A (en) * 1961-01-10
BE625836A (en) * 1961-12-07
NL136430C (en) * 1963-09-25
DE1278031B (en) * 1964-09-23 1968-09-19 Siemens Ag Process for gluing the sheets of ferromagnetic layer or strip cores
DE1283498B (en) * 1964-12-03 1968-11-21 Thyssen Roehrenwerke Ag Method and device for wrapping a pipe with a protective plastic layer
DE1292836B (en) * 1966-11-29 1969-04-17 Knapsack Ag Fluidized bed sintering process for the continuous coating of elongated, endless objects made of metals with powdery, fusible coating materials made of plastic
US4483886A (en) * 1982-05-27 1984-11-20 Exxon Research & Engineering Co. Method for making free-flowing, melt-coated rubber pellets
AT383096B (en) * 1983-04-18 1987-05-11 Oesterr Salen Kunststoffwerk TRANSPORT CONTAINER FOR DANGEROUS GOODS
DE19525205A1 (en) * 1995-07-11 1996-08-22 Herberts Gmbh Coloured coating prodn. on coating applied by fluidised sintering
DE19953840C2 (en) * 1999-11-09 2001-10-04 Kiefel Gmbh Paul Method for producing a motor vehicle trim part with a predetermined breaking line for an airbag

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE832937C (en) * 1944-02-02 1952-03-13 Johannes Croning Process for the production of foundry hollow cores and foundry form skins
DE819100C (en) * 1944-10-30 1951-10-29 Ici Ltd Protecting metals and alloys against oxidation, scaling or other similar damage to the surface during heat treatment
FR1002161A (en) * 1946-08-06 1952-03-03 Process for making hollow cores and shells of foundry molds or molded parts of any kind
US2536042A (en) * 1946-11-06 1951-01-02 Koppers Co Inc Method of producing a granule coated base
DE810174C (en) * 1947-09-10 1951-08-06 Johannes Croning Process for producing layers of molding material for foundry molds and cores
US2578976A (en) * 1949-07-02 1951-12-18 Ingala Frank Method of coating ingot molds and composition therefor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998009736A1 (en) * 1996-09-03 1998-03-12 Ema Elektro-Maschinen Schultze Gmbh & Co. Kg Workpiece coating process
CN113600433A (en) * 2021-06-28 2021-11-05 中国水利水电科学研究院 Inner coating for corrosion prevention of steel pipe and coating process thereof

Also Published As

Publication number Publication date
DE972650C (en) 1959-08-27
CH330942A (en) 1958-06-30
DE933019C (en) 1955-09-15
BE543529A (en) 1959-09-11
GB807238A (en) 1959-01-14
FR1100263A (en) 1955-09-19
BE542094A (en) 1959-08-29
GB759214A (en) 1956-10-17
CH339843A (en) 1959-07-15
FR68392E (en) 1958-04-29

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