EP1057543A1 - Procédé et pâte pour faire un revêtement de protection enlevable gainant - Google Patents

Procédé et pâte pour faire un revêtement de protection enlevable gainant Download PDF

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Publication number
EP1057543A1
EP1057543A1 EP99115453A EP99115453A EP1057543A1 EP 1057543 A1 EP1057543 A1 EP 1057543A1 EP 99115453 A EP99115453 A EP 99115453A EP 99115453 A EP99115453 A EP 99115453A EP 1057543 A1 EP1057543 A1 EP 1057543A1
Authority
EP
European Patent Office
Prior art keywords
mass
protective layer
jacket
protected
producing
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.)
Withdrawn
Application number
EP99115453A
Other languages
German (de)
English (en)
Inventor
Arthur c/o Enviropeel Int. Limited Haycox
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.)
Enviropeel International Ltd
Original Assignee
Enviropeel International 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 Enviropeel International Ltd filed Critical Enviropeel International Ltd
Publication of EP1057543A1 publication Critical patent/EP1057543A1/fr
Withdrawn legal-status Critical Current

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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
    • B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
    • 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
    • B05D1/32—Processes for applying liquids or other fluent materials using means for protecting parts of a surface not to be coated, e.g. using stencils, resists
    • B05D1/322—Removable films used as masks
    • B05D1/325—Masking layer made of peelable film

Definitions

  • the invention relates to a composition for producing a jacket-like, removable protective layer according to the preamble of claim 1 and a method for producing a jacket-like, removable protective layer according to the preamble of claim 4 .
  • the surface to be protected is covered with an adhesive Provide layer in the manner of an impregnation or varnish; attaching this Protective layer happens by the fact that the corresponding, generally liquid or pasty agent is applied, for example by brushing or spraying with the agent or by immersing in the agent can.
  • the advantage of this method is that it is relatively quick and is easy to carry out, but it is not only for relatively simple areas such as Layers is suitable, but that even the most geometrically complex areas are protected can be.
  • the method also has significant disadvantages. So it is hardly or only with considerable effort possible to remove the protective layer again remove the area to be protected, especially if the geometric Shape of the surface is complicated.
  • Removing the protective layer is, however, in many Cases necessary, for example if the protective layer is mechanically or chemically attacked is, whether through wear or because of changes in the parts to be protected or repairs have been made; it is generally not possible to In the course of an additional coating process, an additional layer of the Apply protective fluid, as such generally on the already existing or remaining layer would not adhere.
  • the remains of the remaining protective layer must be removed before re-coating, which is generally is very expensive.
  • the protective layer can often not be removed mechanically, but rather solvents must be used, which are expensive on the one hand and on the other hand mostly have an environmentally harmful character. Finally the removed protective layer falls as waste and can hardly be recycled.
  • the second of the methods for applying a protective layer on a surface is a Layer of a solid material applied to the surface to be protected.
  • Plates act using mechanical fasteners or adhesives to be assembled. More complex areas such as piping, in particular if they have flanges or T-pieces with screw connections, will be against wrapped with flexible ribbons.
  • These textile tapes for example, are general impregnated with impregnating substances, for example from petroleum products. With such protected Areas are not too difficult to either remove or close if necessary complete.
  • the disadvantage of this method is that the application of the protective layer So wrapping the pipes is very time-consuming and not mechanical can be done. Problems arise particularly where the area to be protected Irregularities such as recessed or projecting parts. Removed Furthermore, tapes cannot be recycled.
  • the protective layer is applied by applying a suitable compound Fluid form generated on the surface to be protected.
  • a suitable compound Fluid form generated on the surface to be protected.
  • the application in fluid form is easy to carry out and is also particularly suitable for surfaces to be protected with geometrically complicated Configuration.
  • the applied mass does not combine with the one to be protected Surface but forms a coat-like protective layer after hardening, hereinafter briefly referred to as a coat, in the manner of a coherent body, which the protective surface coated or coated cocoon-like.
  • the mass from which the coat is made forms a coherent, sealed body after it has hardened without involuntary breakthroughs and with considerable toughness.
  • This coat does cover the area to be protected and follows its shape, even where there are indentations and bulges or has blatant changes in direction, but without it to a certain extent merge or bake on it.
  • the tensile strength of the jacket should or the cohesion of its mass is greater than the adhesion of the jacket to the one to be protected Area.
  • the jacket can therefore be used as a whole or in large sections can be easily removed by peeling or peeling off the surface to be protected.
  • neither abrasive mechanical methods such as grinding nor chemical Methods such as the use of solvents are applied; thereby avoids there is also involuntary damage to the surface when removing the Coat.
  • the jacket can be used for thermal or mechanical deformations of the surface to be protected does not tear but remains intact because it is elastic and, if necessary, relatively small in relation to the surface to be protected Extent is mobile; this greatly increases the life of the jacket.
  • the new The method is suitable for flat as well as for single or multiple curved surfaces of any kind, direction and dimensions, and for both outside and inside turned surfaces.
  • an outer jacket serves against damage to the pipe outer surface due to environmental influences
  • a Inner jacket the inside of the pipe from damage by the granules, liquids contained in it or protects gases.
  • the mass determined to form the jacket is advantageously applied by Spraying.
  • a mass or a material is provided to form the jacket, the is brought into fluid form by heating, which increases the use of solvents superfluous.
  • the nature of the mass from which the jacket is made depends on the respective Depending on the intended use. In principle, the viscosity of the mass should be higher than their liability to the area to be protected. When choosing the appropriate mass, these are Properties of the area to be protected, the environment or the area exercised by it consider chemical and mechanical effects on the jacket and the temperature, under which the coat is used. It is particularly advantageous if the Mass is resistant to aging, among other things in the sense that they are repeated several times alternately by supplying heat in liquid and by dissipating heat in solid state can bring.
  • jackets of this type are particularly suitable for sheathing pipelines and pipeline connections, such as those in large quantities on petroleum drilling platforms occurrence.
  • Such pipe connections are extremely at risk of corrosion there, on the one hand due to the salty atmosphere and spray water, even if they are outside the sea water, and on the other hand through the Seawater itself, when immersed in it.
  • Subject to particular corrosion Areas with bolted connections, the bolts and those connected by them Flanges generally differ with regard to the electrical voltage series Have values so that they are subject to severe bimetal corrosion, the saline Sea water forms the corresponding electrolyte. This bimetal corrosion is over so intense, the more saline the sea water and the higher the temperature completely and permanently prevented by the measures according to the invention.
  • the first tube 12 has a flange 13 at its end to be connected
  • the second tube 14 has a flange 15 at its end to be connected.
  • the two flanges 13, 15 are tightly clamped together by means of bolts 16 and nuts 18 .
  • the surface 20 to be protected thus comprises on the one hand the outer walls of the tubes 12, 14 , the surfaces of the flanges 13, 15 facing towards the outside in the form of a ring or a cylinder jacket , and the surfaces of the bolts 16 and the nuts 18 facing towards the outside.
  • the surface 20 to be protected is included surrounded by a jacket 22 , which sheaths the entire pipeline connection 10 in a sealing manner, a type of cocoon being formed, and thereby closely following the contour of the surface 20 . This prevents the access of water and air to the surface 20 and thus prevents any corrosion.
  • the part 11 of the pipeline connection 10 shown in FIG. 2 shows how the mass forming the jacket 22 also fills the smallest cavities 19 of the surface 20 , so that even started corrosion is stopped.
  • a corrosion inhibitor 24 reaches the pipeline connection 10 , which settles on the surface 20 .
  • the jacket 22 it is advisable to clean it before applying the jacket 22 , for example using a wire brush, and, depending on the conditions, to provide it with a primer.
  • FIG. 3 schematically shows the application of the jacket 22 to the surface 20 .
  • a mass 21 which is provided to form the jacket 20 , is heated in a heatable container 30 and thereby liquefied or brought into fluid form, then passed through a hose 32 to a spray gun 34 and finally while the spray gun is relative to the surface 20 moved in the direction of the arrow 36 , sprayed onto the surface 20 , where it essentially settles in the form of the jacket 22 to be formed and here follows the shape of the surface 20 precisely and in close proximity.
  • the mass 21 or the jacket 22 solidifies and then forms a coherent body or a type of shell or skin, but there is no fusion or bonding with or no caking to the surface 20 .
  • the jacket 22 is now an elastic structure and can therefore undergo heat or stress dilatation of the material of the pipeline connection 10 without breaking.
  • the mass 21 of the former jacket 22 removed from the surface 20 can be reused. For this purpose, if necessary after cleaning and comminution, it is again brought into the heatable container 30 , where it is liquefied again by heating and thus made sprayable.

Landscapes

  • Application Of Or Painting With Fluid Materials (AREA)
  • Preventing Corrosion Or Incrustation Of Metals (AREA)
  • Protection Of Pipes Against Damage, Friction, And Corrosion (AREA)
EP99115453A 1999-06-04 1999-08-05 Procédé et pâte pour faire un revêtement de protection enlevable gainant Withdrawn EP1057543A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH105099 1999-06-04
CH105099A CH693784A5 (de) 1999-06-04 1999-06-04 Verfahren zur Erzeugung und zur Entfernung einer Schutzschicht, Masse zur Erzeugung der Schutzschicht und Verwendung der Schutzschicht.

Publications (1)

Publication Number Publication Date
EP1057543A1 true EP1057543A1 (fr) 2000-12-06

Family

ID=4201290

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99115453A Withdrawn EP1057543A1 (fr) 1999-06-04 1999-08-05 Procédé et pâte pour faire un revêtement de protection enlevable gainant

Country Status (4)

Country Link
EP (1) EP1057543A1 (fr)
JP (1) JP2001050477A (fr)
CH (1) CH693784A5 (fr)
TW (1) TW499328B (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103115220A (zh) * 2013-01-23 2013-05-22 山东华政塑胶科技发展有限公司 一种3pe防腐钢管法兰连接方法
FR3003007A1 (fr) * 2013-03-06 2014-09-12 Vallourec Mannesmann Oil & Gas Composant tubulaire filete protege par un film

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1925414A1 (de) * 1968-05-20 1969-11-27 Grace W R & Co Verfahren und Vorrichtung zur Bildung abziehbarer Schutzueberzuege
US3620796A (en) * 1969-01-13 1971-11-16 Continental Oil Co Substrates having strippable protective coatings
US3642564A (en) * 1970-03-06 1972-02-15 Allegheny Ludlum Steel Strippable protective film
FR2496680A1 (fr) * 1980-12-18 1982-06-25 Heibey Friedrich Procede de fabrication de minces films pelables de protection par pulverisation d'une substance thermoplastique liquefiee et couche mince de film pelable fabriquee d'apres ce procede
WO1997015499A1 (fr) * 1995-10-27 1997-05-01 Cal-West Equipment Company, Inc. Compositions de revetement polymere a decoller et son procede d'utilisation
DE19621037A1 (de) * 1996-05-24 1997-11-27 Basf Ag Verfahren zum temporären Schutz von Oberflächen durch Polymerschichten

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1925414A1 (de) * 1968-05-20 1969-11-27 Grace W R & Co Verfahren und Vorrichtung zur Bildung abziehbarer Schutzueberzuege
US3620796A (en) * 1969-01-13 1971-11-16 Continental Oil Co Substrates having strippable protective coatings
US3642564A (en) * 1970-03-06 1972-02-15 Allegheny Ludlum Steel Strippable protective film
FR2496680A1 (fr) * 1980-12-18 1982-06-25 Heibey Friedrich Procede de fabrication de minces films pelables de protection par pulverisation d'une substance thermoplastique liquefiee et couche mince de film pelable fabriquee d'apres ce procede
WO1997015499A1 (fr) * 1995-10-27 1997-05-01 Cal-West Equipment Company, Inc. Compositions de revetement polymere a decoller et son procede d'utilisation
DE19621037A1 (de) * 1996-05-24 1997-11-27 Basf Ag Verfahren zum temporären Schutz von Oberflächen durch Polymerschichten

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103115220A (zh) * 2013-01-23 2013-05-22 山东华政塑胶科技发展有限公司 一种3pe防腐钢管法兰连接方法
FR3003007A1 (fr) * 2013-03-06 2014-09-12 Vallourec Mannesmann Oil & Gas Composant tubulaire filete protege par un film
WO2014135499A1 (fr) * 2013-03-06 2014-09-12 Vallourec Oil And Gas France Composant tubulaire fileté protégé par un film
RU2664930C2 (ru) * 2013-03-06 2018-08-23 Валлурек Ойл Энд Гес Франс Резьбовой трубный компонент, защищенный с помощью пленки

Also Published As

Publication number Publication date
CH693784A5 (de) 2004-02-13
TW499328B (en) 2002-08-21
JP2001050477A (ja) 2001-02-23

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