GB823175A - Method of improving the adhesion of polyethylene coatings to metals - Google Patents

Method of improving the adhesion of polyethylene coatings to metals

Info

Publication number
GB823175A
GB823175A GB3174557A GB3174557A GB823175A GB 823175 A GB823175 A GB 823175A GB 3174557 A GB3174557 A GB 3174557A GB 3174557 A GB3174557 A GB 3174557A GB 823175 A GB823175 A GB 823175A
Authority
GB
United Kingdom
Prior art keywords
polyamide
acid
amino
cyclonic
sintering
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
GB3174557A
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.)
GEA Group AG
Original Assignee
Metallgesellschaft 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 Metallgesellschaft AG filed Critical Metallgesellschaft AG
Publication of GB823175A publication Critical patent/GB823175A/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
    • B05D7/50—Multilayers
    • B05D7/52—Two layers
    • B05D7/54—No clear coat specified
    • 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
    • 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
    • C09D177/00—Coating compositions based on polyamides obtained by reactions forming a carboxylic amide link in the main chain; Coating compositions based on derivatives of such polymers
    • C09D177/06—Polyamides derived from polyamines and polycarboxylic acids
    • 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
    • B05D2505/00—Polyamides
    • 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
    • B05D2507/00—Polyolefins
    • B05D2507/01—Polyethylene

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Laminated Bodies (AREA)
  • Coating By Spraying Or Casting (AREA)

Abstract

Metals are provided with adherent polyethylene coatings by first applying to the metal by spray gun or by cyclonic sintering an intermediate film consisting of a polyamide, comprising hydrocarbon chains with more than six CH2-groups between the -CO.NH- groups, and thereupon superimposing the polyethylene coating upon said intermediate film by flame spraying or by cyclonic sintering. The metals coated may be e.g. iron, steel, chromium, nickel, aluminium, copper, brass, bronze, zinc or tin. The polyamide layer may have a thickness of from 0.05 to 0.2 mm., and the polyethylene layer a thickness of from 0.1 to 1 mm. Suitable polyamides are those formed from 11-amino-undecanic acid, and from 17-amino-heptadecanic acid; also those formed from diamines and dicarboxylic acids, the hydrocarbon chain of either or both containing more than six CH2 groups. Examples of this latter class are the polyamides formed from sebacic or brassylic acid and aliphatic diamines, or from decamethylene diamine and other higher diamines and aliphatic dicarboxylic acids. Examples are given (1) of coating steel plates by sand-blasting, heating to 300 DEG C., applying a 0.1 mm. film of the polyamide of 11-amino-undecanic acid by cyclonic sintering, then applying a 0.75-mm. thick layer of high-pressure polyethylene (M.W. 150,000-200,000) while the polyamide layer was still in a viscous plastic state; other polyamides, viz. the polyamide of 17-amino-heptadecanic acid, the polyamide of decamethylene diamine and brassylic acid, and the polyamide of decamethylene diamine and sebacic acid being also used with satisfactory results; and (2) coating steel blades of exhaust fans with the polyamide of 11-amino-undecanic acid and polythene, by cyclonic sintering and by flame spraying. These are compared with the results obtained by coating metal directly with polythene, and by applying first a polyamide having six or less CH2 groups in the hydrocarbon chain; in neither case was satisfactory adhesion achieved. U.S.A. Specification 2,071,253 and German Specification 828,360 are referred to.
GB3174557A 1956-10-19 1957-10-10 Method of improving the adhesion of polyethylene coatings to metals Expired GB823175A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEM32100A DE1056512B (en) 1956-10-19 1956-10-19 Process for improving the adhesive strength of flame-sprayed or fluid-sintered polyethylene coatings on metallic substrates through an organic intermediate layer

Publications (1)

Publication Number Publication Date
GB823175A true GB823175A (en) 1959-11-04

Family

ID=7301395

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3174557A Expired GB823175A (en) 1956-10-19 1957-10-10 Method of improving the adhesion of polyethylene coatings to metals

Country Status (2)

Country Link
DE (1) DE1056512B (en)
GB (1) GB823175A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3348995A (en) * 1964-03-09 1967-10-24 American Cast Iron Pipe Co Method of coating metal surfaces with polyethylene utilizing a polyethylene primer and articles produced thereby

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3264131A (en) * 1964-05-11 1966-08-02 Polymer Corp Process for fusion coating and materials used therein

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3348995A (en) * 1964-03-09 1967-10-24 American Cast Iron Pipe Co Method of coating metal surfaces with polyethylene utilizing a polyethylene primer and articles produced thereby

Also Published As

Publication number Publication date
DE1056512B (en) 1959-04-30

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