EP2714289A1 - Verfahren zum beschichten von inneren oberflächen langgestreckter gegenstände - Google Patents
Verfahren zum beschichten von inneren oberflächen langgestreckter gegenständeInfo
- 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- Withdrawn
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
Description
Claims
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 (de) | 2011-05-31 | 2012-05-23 | Verfahren zum beschichten von inneren oberflächen langgestreckter gegenstände |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2714289A1 true EP2714289A1 (de) | 2014-04-09 |
Family
ID=46317323
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP12727786.1A Withdrawn EP2714289A1 (de) | 2011-05-31 | 2012-05-23 | Verfahren zum beschichten von inneren oberflächen langgestreckter gegenstände |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP2714289A1 (de) |
DE (1) | DE102011103737A1 (de) |
WO (1) | WO2012163495A1 (de) |
Family Cites Families (6)
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 |
-
2011
- 2011-05-31 DE DE102011103737A patent/DE102011103737A1/de not_active Withdrawn
-
2012
- 2012-05-23 EP EP12727786.1A patent/EP2714289A1/de not_active Withdrawn
- 2012-05-23 WO PCT/EP2012/002192 patent/WO2012163495A1/de active Application Filing
Non-Patent Citations (1)
Title |
---|
See references of WO2012163495A1 * |
Also Published As
Publication number | Publication date |
---|---|
DE102011103737A1 (de) | 2012-12-06 |
WO2012163495A1 (de) | 2012-12-06 |
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Legal Events
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DAX | Request for extension of the european patent (deleted) | ||
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
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RIC1 | Information provided on ipc code assigned before grant |
Ipc: B05D 5/08 20060101ALI20160129BHEP Ipc: B05D 7/22 20060101ALI20160129BHEP Ipc: B05D 3/04 20060101ALI20160129BHEP Ipc: A61M 25/00 20060101AFI20160129BHEP |
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INTG | Intention to grant announced |
Effective date: 20160303 |
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STAA | Information on the status of an ep patent application or granted ep patent |
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18D | Application deemed to be withdrawn |
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