Method for the production of coatings, adhesive layers or seals for primed or unprimed substrates

    公开(公告)号:AU3022801A

    公开(公告)日:2001-08-14

    申请号:AU3022801

    申请日:2001-02-01

    Applicant: BASF AG

    Abstract: The invention concerns a method for the production of coatings, adhesive layers or seals for primed or unprimed substrates, wherein (1) at least one coating material that can be hardened thermally and/or with actinic radiation and/or an adhesive and/or at least one sealant that can be hardened thermally and/or with actinic radiation in the form of a powder slurry is applied on and/or to the primed or unprimed substrate; (2) the resulting powder slurry layer is dried; (3) the resulting solid layer (2) is molten by heating and (4) the resulting molten layer obtained in step (3) of the method is hardened with near infrared radiation (NIR) in its molten state during and/or after solidification.

    176.
    发明专利
    未知

    公开(公告)号:DE59606463D1

    公开(公告)日:2001-03-29

    申请号:DE59606463

    申请日:1996-11-12

    Applicant: BASF AG

    Abstract: A process for the production of (meth)acrylate esters (I) by esterification of (meth)acrylic acid (II) with mono- or poly- hydric alcohols (III) is claimed. The reaction mixture, still containing (II) in amounts equivalent to an acid number of at least 5 mg KOH/g, is treated with amino compound(s) (IV) containing at least one prim., sec. or tert. amino group. Also claimed are: (1) esters (I) obtained by this process; and (2) radiation-curable materials (RCM) containing (I).

    179.
    发明专利
    未知

    公开(公告)号:BR9905157A

    公开(公告)日:2000-09-12

    申请号:BR9905157

    申请日:1999-11-05

    Applicant: BASF AG

    Abstract: A crosslinking reaction is initiated in a reactive paint formulation. This is coated-onto a surface at least locally, before reaction is completed. Independent claims are included for equipment carrying out the process, and for the coating so produced. The equipment employs a sprayer and/or electrostatic applicator with bell housing. Preferred features: Initiation of reaction preferably employs UV illumination (1), in conjunction with at least one photoinitiator in the formulation. Kinetics of the reaction are controlled by temperature variation, and/or by use of a sufficiently slowly-running reaction, especially a cationic polymerization, and/or by spatial separation of photoinitiator(s) from the formulation components and/or by minimizing reactivity of the photoinitiator(s). Spatial separation cited, is by nano-structuring of the paint formulation. Further stages include mixing a UV protection agent and/or pigment into the formulation before coating. A hand spray gun (6) applies the paint. In the equipment, optical fibers (3, 4) transmit UV light to the paint formulation.

Patent Agency Ranking