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    Chemically different flowable material application process to produce adhesive systems, paints and coatings on substrate involves use of multi-cascade nozzle for simultaneous deposition of several layers
    6.
    发明专利
    Chemically different flowable material application process to produce adhesive systems, paints and coatings on substrate involves use of multi-cascade nozzle for simultaneous deposition of several layers 未知

    公开(公告)号：DE102004007927A1

    公开(公告)日：2005-09-01

    申请号：DE102004007927

    申请日：2004-02-18

    Applicant: BASF AG

    Inventor： AYDIN ORAL ,  DRAGON ANDREE ,  KIRSCH STEFAN

    IPC: B05C5/00 ,  B05C9/06 ,  B05D1/26 ,  B05D1/28 ,  B05D1/30 ,  B05D7/00 ,  B05D1/02 ,  B05D5/00 ,  B05D7/24

    Abstract: Two or more chemically different, flowable materials are applied continuously and simultaneously onto a strip substrate by a multiple cascade nozzle(1). Material application is 2-200g/sq m and the ratio of individual layers of the multi-layer product is 0.1-100. Composite or glossy films(51) can be produced by lamination of two or more materials or adhesive may be applied to strip substrates, e.g. paper or film(55). Coatings can be applied onto strip substrates such as paper, plastic films or metalized surfaces where the layer facing the surface either improves adhesion or acts as a barrier layer. Substrates may also be varnished or painted by simultaneous application of elastic and rigid layers in a single operation. Two layers based on cationic and anionic polymers, which have a tendency to gel or coagulate during layering, can be applied to a substrate without problem. In the latter case both layers can be a combination of cationic polymer solutions with anionic dispersions. Solutions of metal salts and metal complexes with polymer dispersions can be applied in one operation. Cross-linkable reactive components such as polyisocyanate, polyepoxide or polyacyridine in one layer may be combined with another layer containing dispersions. Chemically different dispersions may be applied as individual layers in one operation, e.g. dispersions of either styrene-butadiene, acrylate, ethylene, vinylacetate or polyurethane can be combined with silicone emulsions forming release agents. In the latter method an initial thin layer can thus improve wettability on a release layer.

    9.
    发明专利
    未知

    公开(公告)号：AT205231T

    公开(公告)日：2001-09-15

    申请号：AT97109083

    申请日：1997-06-05

    Applicant: BASF AG

    Inventor： PAKUSCH JOACHIM DR ,  ROSER JOACHIM DR ,  ANGEL MAXIMILIAN DR ,  DRAGON ANDREE

    IPC: C04B24/26 ,  C04B40/00 ,  C04B40/06 ,  C08J3/12 ,  C08J3/16 ,  C08K3/24 ,  C08L1/00 ,  C08L29/04 ,  C08L33/10 ,  C08L33/26 ,  C08L35/00 ,  C08L39/06 ,  C08L61/00 ,  C08L83/04 ,  C08L97/00 ,  C08L101/00 ,  C08L101/02

    Abstract: The production of polymer powder (I) suitable for the modification of mineral binder building materials, involves drying an aqueous polymer dispersion which forms films with a Tg of not above 30 degrees C, where before drying, the dispersion is treated with drying agents (IIa) which have a liquefying action on the mineral binder when it is mixed with water and ready for use; after drying, the powder (I) is treated with finely divided solid additive(s) (IIIa) which have a solidifying action on the binder/water mix. Alternatively, the dispersion is treated with solidifying driers (IIb) before drying, and the dried powder is treated with finely divided solid additives (IIIb) which have a liquefying action on the mix. Also claimed are: (i) polymer powder (I) obtained by this process; (ii) mineral binders containing (I); and (iii) dry mortar preparations containing 20-60 wt% mineral binder, 0.1-20 wt% (I) and up to 25 wt% conventional additives, the remainder consisting of sand, fillers, pigments and natural and/or synthetic fibres.

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