EP2714289A1 - Procédé destiné à revêtir des surfaces intérieures d'objets s'étendant en longueur - Google Patents

Procédé destiné à revêtir des surfaces intérieures d'objets s'étendant en longueur

Info

Publication number
EP2714289A1
EP2714289A1 EP12727786.1A EP12727786A EP2714289A1 EP 2714289 A1 EP2714289 A1 EP 2714289A1 EP 12727786 A EP12727786 A EP 12727786A EP 2714289 A1 EP2714289 A1 EP 2714289A1
Authority
EP
European Patent Office
Prior art keywords
inner surfaces
para
monomer
xylylene
dimer
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Withdrawn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
EP12727786.1A
Other languages
German (de)
English (en)
Inventor
Heinz Busch
Udo Grabowy
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP2714289A1 publication Critical patent/EP2714289A1/fr
Withdrawn legal-status Critical Current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
    • B05D1/60—Deposition of organic layers from vapour phase
    • 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
    • B05D7/22—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 internal surfaces, e.g. of tubes
    • 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
    • B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
    • B05D3/04—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to gases
    • B05D3/0493—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to gases using vacuum
    • 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

Definitions

  • parylene poly-para-xylylene
  • a further coating material is known. It is an optically transparent polymer that is applied in a vacuum by condensation from the gas phase conformal and free of so-called "pin-holes."
  • substrate materials such as metals, plastics, ceramics and paper can be coated.
  • the inner surfaces of the elongate objects are divided into a plurality of regions, wherein in each region the temperature for cooling the monomer and for condensing to the polymer is separately controllable or regulatable.
  • the heating and splitting of the dimer for example, at a temperature between 660 ° C and 790 ° C.
  • the coating device has a plurality of regions in which the temperature can be controlled or regulated separately, so that the temperature for cooling the monomer and for condensing to the polymer can be set separately in corresponding regions of the inner surfaces of the elongated articles ,
  • FIG. 1 shows a schematic block diagram of an apparatus for coating inner surfaces of elongated objects according to a preferred embodiment of the invention.
  • 1 shows a schematic block diagram of a device for coating inner surfaces of elongated objects 20 according to a preferred embodiment of the invention.
  • the device comprises an evaporation device 10, a reaction device 12, a first vacuum chamber 14, a coating device 16, a second vacuum chamber 18, a vacuum pump 22 and a control device 24.
  • the control device 24 is for regulating the temperatures and the pressures in the evaporation device 10, in the reaction device 12, in the vacuum chambers 14 and 18 and / or in the coating device 16 and for regulating the
  • the monomer reacts to form a polymer. Since the coating device 16 is located between the first vacuum chamber 14 and the second vacuum chamber 18 and the pressure in the second vacuum chamber 18 is lower than in the first vacuum chamber 14, there is a flow of the gaseous monomer within the elongate objects 20 Temperature along the longitudinal direction of the elongated objects 20 can be varied. For example, the temperature at those ends of the elongate articles 20 located adjacent to the first vacuum chamber 14 is about 100 ° C. Along the longitudinal direction of the elongate objects 20, the temperature decreases steadily. For example, at the other ends of the elongated articles 20 located adjacent to the second vacuum chamber 14, the temperature may be about 0 ° C.
  • the contact elements may be formed, for example, as a hollow body or profile sections.
  • the contact elements have a groove or passageway provided for receiving the elongated article 20.
  • the contact elements may be formed, for example, as a hollow body or profile sections.
  • the contact elements have a groove or passageway provided for receiving the elongated article 20.
  • the arranged in series contact elements are thermally insulated from each other.
  • an insulation made of a material with high thermal conductivity is located between two adjacent contact elements.
  • the adjacent contact elements are spaced apart and separated by an air gap.
  • the series of contact elements may be mounted on a heat-insulating material, so that the heat loss of the contact elements as well as the heat exchange between the contact elements are minimized.
  • the vaporized di-para-xylylene is passed through a high temperature zone.
  • the high temperature zone is located in the reaction device 12.
  • pyrolysis forms in the high temperature zone, a highly reactive di-radical monomer.
  • the temperature is between 660 ° C and 790 ° C.
  • the di-radical monomer immediately reacts on a surface in a third step to form the chain-shaped polymer poly-para-xylylene. This takes place in the coating device 16.
  • the method and apparatus exploited the fact that the rate of condensation, i. the deposition of poly-para-xylylene on a surface depends very much on the surface temperature. Thus, at a temperature of more than 150 ° C. or 160 ° C., no formation of polyparaxylylene occurs on the surface of a substrate to be coated, and thus no layer structure. Furthermore, the film forming rate can be increased when the substrate is cooled and the heat is dissipated from the surface.
  • Implants is suitable for poly-para-xylylene and has been tested many times. There are FDA approvals for poly-para-xylylene-coated implants, such as cardiological stents. Due to its physical and chemical properties, the poly-para-xylylene also makes difficult areas and structures, such as points, undercuts, sharp edges and narrow gaps coated completely, evenly and without pores. It can be applied in a single operation layers with a thickness of 0.1 ⁇ to 50 ⁇ .
  • Poly-para-xylylene also serves as corrosion protection. Furthermore, poly-para-xylylene is also suitable as a base layer for a system based thereon for the application of pharmacotherapies.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Physical Vapour Deposition (AREA)

Abstract

L'invention concerne un procédé destiné à revêtir des surfaces intérieures d'objets s'étendant en longueur (20), notamment de tubes et/ou de tuyaux. On prépare, réchauffe et évapore au moins un dimère. Ensuite, on augmente la température dudit dimère et on le dégrade pour obtenir au moins un monomère. Ledit monomère subit un refroidissement et une condensation sous forme d'un polymère aux surfaces intérieures des objets s'étendant en longueur (20). Les surfaces intérieures des objets s'étendant en longueur (20) sont divisées en une pluralité de zones, la température destiné à refroidir ledit monomère et à provoquer la condensation sous forme d'un polymère pouvant être commandée ou réglée séparément dans chacune des zones. En outre, l'invention concerne un dispositif correspondant qui est destiné à revêtir des surfaces intérieures d'objets s'étendant en longueur (20). Enfin, l'invention concerne un objet s'étendant en longueur, s'agissant notamment un tuyau ou d'un tube, dont la surface intérieure est revêtue au moyen du procédé précité et/ou au moyen du dispositif précité.
EP12727786.1A 2011-05-31 2012-05-23 Procédé destiné à revêtir des surfaces intérieures d'objets s'étendant en longueur Withdrawn EP2714289A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011103737A DE102011103737A1 (de) 2011-05-31 2011-05-31 Verfahren zum Beschichten von inneren Oberflächen langgestreckter Gegenstände
PCT/EP2012/002192 WO2012163495A1 (fr) 2011-05-31 2012-05-23 Procédé destiné à revêtir des surfaces intérieures d'objets s'étendant en longueur

Publications (1)

Publication Number Publication Date
EP2714289A1 true EP2714289A1 (fr) 2014-04-09

Family

ID=46317323

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12727786.1A Withdrawn EP2714289A1 (fr) 2011-05-31 2012-05-23 Procédé destiné à revêtir des surfaces intérieures d'objets s'étendant en longueur

Country Status (3)

Country Link
EP (1) EP2714289A1 (fr)
DE (1) DE102011103737A1 (fr)
WO (1) WO2012163495A1 (fr)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USH1824H (en) * 1997-08-01 1999-12-07 The United States Of America As Represented By The Secretary Of The Navy Vapor deposition of a thin polymer film on solid propellant rocket grain surface
US7179283B2 (en) * 2001-11-02 2007-02-20 Scimed Life Systems, Inc. Vapor deposition process for producing a stent-graft and a stent-graft produced therefrom
US8252113B2 (en) * 2005-03-24 2012-08-28 Ulvac, Inc. Method for producing component for vacuum apparatus, resin coating forming apparatus and vacuum film forming system
US20090142227A1 (en) * 2005-07-01 2009-06-04 Manfred Fuchs Parylene Coating and Method for the Production Thereof
US20070276486A1 (en) * 2006-05-25 2007-11-29 E. Benson Hood Laboratories Coated tracheostomy tube and stoma stent or cannula
KR20110059563A (ko) * 2008-04-16 2011-06-02 노쓰이스트 마리타임 인스티튜트, 인코포레이티드 선박 용도 및 다른 환경에 대한 금속 및 전자 소자 코팅 방법

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2012163495A1 *

Also Published As

Publication number Publication date
DE102011103737A1 (de) 2012-12-06
WO2012163495A1 (fr) 2012-12-06

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