PROCESS FOR THE PRODUCTION OF STRONGLY ADHERENT COATINGS
    137.
    发明公开
    PROCESS FOR THE PRODUCTION OF STRONGLY ADHERENT COATINGS 审中-公开
    用于生产硬质涂层承担责任

    公开(公告)号:EP1651792A1

    公开(公告)日:2006-05-03

    申请号:EP04766312.5

    申请日:2004-07-26

    Abstract: The invention relates to a process for the production of strongly adherent coatings on an inorganic or organic metalized substrate, wherein in a first step a) a low-temperature plasma, a corona discharge or a flame is caused to act on the inorganic or organic substrate, in a second step b) one or more photoinitiators or mixtures of photoinitiators with monomers, containing at least one ethylenically unsaturated group, or solutions, suspensions or emulsions of the afore-mentioned substances, are applied to the inorganic or organic substrate, in a third step c) using suitable methods those afore-mentioned substances are dried and/or irradiated with electromagnetic waves and, optionally, in a fourth step d) the substrate so pretreated is provided with a coating and the coating is cured or dried.

    METHOD OF COATING A METALLIC SUBSTRATE WITH THERMOPLASTIC COATING MATERIAL
    139.
    发明公开
    METHOD OF COATING A METALLIC SUBSTRATE WITH THERMOPLASTIC COATING MATERIAL 失效
    法涂层的金属面基板用热塑性材料

    公开(公告)号:EP1021300A1

    公开(公告)日:2000-07-26

    申请号:EP98934893.3

    申请日:1998-05-14

    Abstract: Method of coating a metallic substrate (1) with thermoplastic coating material, comprising a preheating the substrate in such as way that, just prior to coating, it is at a temperature between 70 °C and 150 °C, preferably between 100 °C and 130 °C in the case of a coating containing polypropene and between 80 and 110 °C in the case of a coating containing polyethene; coextrusion, in the first coating station of a sheet (6) comprising a polyolefin covering layer and a modified polyolefin adhesion layer; coating of the substrate (1) with a molten sheet in the presence of ozone by pressing it with the adhesion layer against the surface of the substrate; transportation of the strip (9) coated on one side to a second coating station and heating the strip so that, just before coating, the strip is at a temperature between 70 °C and 130 °C, preferably between 80 °C and 120 °C, if the coating layer applied in the first coating station is polypropene and between 80 and 110 °C if the coating layer applied at that point is polyethene; coating of the substrate with a molten sheet extruded in the second coating station by pressing it against the uncoated surface of the substrate, use being made of the presence of ozone; heating of the coated substrate so that it assumes a temperature which is above the melting point of the polyolefins applied; cooling of the coated substrate.

    METHOD FOR USING PULSED OPTICAL ENERGY TO INCREASE THE BONDABILITY OF A SURFACE
    140.
    发明公开
    METHOD FOR USING PULSED OPTICAL ENERGY TO INCREASE THE BONDABILITY OF A SURFACE 失效
    方法对于脉冲光功率的操作以增加表面粘附。

    公开(公告)号:EP0642421A1

    公开(公告)日:1995-03-15

    申请号:EP93913982.0

    申请日:1993-05-18

    Abstract: A method and system for improving the capability of a surface (14) of an organic structure (16) to bond with another material includes irradiating a target area of the surface of a structure with pulsed, incoherent optical energy (18) from an optical energy source (12) having wavelength components which range from 170-5000 nanometers at an intensity sufficient to photodecompose any adventitious organic substances on the surface and to photodecompose a thin layer of molecular bonds forming the surface of the structure; and exposing the target area of the surface (14) to an ionized gas stream (24) from an ionized gas generator (26) that chemically reacts with the target area of the surface to increase the surface free energy of the surface. A similar method may also be employed to improve the bondability of a metal surface by impinging a target area on a metal surface with a stream of particles (36) to preclean and dislodge any inorganic substances from the surface; and then irradiating the target area of the surface with pulsed, incoherent optical energy (18) having wavelength components in the range of 170-5000 nanometers at an intensity sufficient to photodecompose any remaining organic substances present on the surface.

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