Coating composition and method of coating
    3.
    发明公开
    Coating composition and method of coating 失效
    涂料组合物和涂料方法

    公开(公告)号:EP0147984A3

    公开(公告)日:1986-08-13

    申请号:EP84308725

    申请日:1984-12-14

    摘要: @ A solvent-resistant barrier coating is used beneath a polyurethane top coat, for example for coating aircraft. The barrier coating comprises a film-forming addition polymer comprising units of a vinyl aromatic monomer and units of a monomer containing a hydroxy alkyl group and a polyisocyanate containing at least 2 isocyanate groups per mote- cule. The addition polymer has a hydroxyl content in the range 0.5 to 5 per cent by weight due to the presence of the hydroxy alkyl groups and preferably contains at least 30 per cent by weight of the vinyl aromatic monomer. The ratio of isocyanate groups to hydroxyl groups is in the range 1:1 to 2:1. The polyurethane top coat can be removed from the substrate by a stripping solvent such as methylene chloride without removing the barrier coating.

    Formable light-reflective compositions
    5.
    发明公开
    Formable light-reflective compositions 失效
    易反射组合物

    公开(公告)号:EP0146255A3

    公开(公告)日:1986-09-03

    申请号:EP84307695

    申请日:1984-11-07

    IPC分类号: C09D05/22 C09D05/00 G01T01/20

    摘要: A light-reflective flowable and curable composition comprises a resin containing light-reflective solid particles in an amount and of average particle size sufficient to provide the desired light reflectance/transmittance characteristics to the cured composition. Preferably, the composition is self-levelling and the solid particles comprise magnesium oxide, barium sulphate, aluminium oxide or mixtures thereof. The compositions of the invention are useful as reflective coatings in various applications, such as for radiation detector devices including scintillator crystals. For instance, a scintillator crystal block (1), mounted on a base (4) within a housing (7), has channels or grooves (3) separating it into elements (2) and these are optically isolated from one another by means of the light-reflective curable composition.

    Paint not permeable to water and permeable to aqueous vapour
    10.
    发明公开
    Paint not permeable to water and permeable to aqueous vapour 失效
    涂料不能透过水和渗透到水性蒸气中

    公开(公告)号:EP0212790A3

    公开(公告)日:1988-01-07

    申请号:EP86304439

    申请日:1986-06-10

    申请人: MALNING h/f

    IPC分类号: C09D05/00 C09D03/727

    CPC分类号: C09D133/06 C08L2666/44

    摘要: A paint for outdoor surfaces and surfaces in wet rooms, especially for concrete walls exposed to strong weathering, contains pigment, binder of which a part is (meth)acrylic polymers and/or copolymers, volatile solvent(s), fillers and optionally known additives and it is characterized by (a) having a pigment-volume concentration of 47 to 65%, preferably 55 to 60%, (b) containing diatom shells as a part of the filler, and (c) containing one or more oligomeric alkyl-alkoxy-organosiloxanes as part of the continuous binder phase. There is obtained on one hand a high degree of imperviousness to water in the liquid form and on the other hand a high degree of diffusion of aqueous vapour.