UV-CROSSLINKABLE MATERIALS BASED ON ISOAMYL (METH)ACRYLATE COPOLYMERS

    公开(公告)号:CA2000736A1

    公开(公告)日:1990-04-30

    申请号:CA2000736

    申请日:1989-10-16

    Applicant: BASF AG

    Abstract: O.Z. 0050/40301 Materials which are crosslinkable by ultraviolet radiation under atmospheric oxygen and are based on (meth)acrylate copolymers having a X value of from 10 to 100 are obtained by free radical polymerization, in the presence or absence of a solvent, of a) from 5 to 97.4% by weight of isoamyl acrylate and/or isoamyl methacrylate, b) from 0 to 89.9% by weight of (meth)acrylates whose homopolymers have a glass transition temperature below -30.degree.C, c) from 2.5 to 30% by weight of .alpha.,.beta.-monoolefinically unsaturated compounds whose homopolymers have a glass transition temperature above -30.degree.C, d) from 0 to 10% by weight of monoolefinically unsaturated acids and/or their anhydrides and e) from 0 to 20% by weight of further olefinically unsaturated monomers having one or more of the following functional groups: hydroxyl, amide, epoxide, ether, ester, urethane, urea, primary, secondary and tertiary amine and ether groups, and f) from 0.1 to 5% by weight of a copolymerizable benzophenone derivative or acetophenone derivative, the sum of the percentages by weight X (= a + b + c + d + f) being 100 in each case.

    14.
    发明专利
    未知

    公开(公告)号:FI895024A0

    公开(公告)日:1989-10-23

    申请号:FI895024

    申请日:1989-10-23

    Applicant: BASF AG

    Abstract: Compositions which can be crosslinked under an atmospheric oxygen atmosphere by means of ultraviolet irradiation and are based on (meth)acrylate copolymers having a K value of from 10 to 100, obtained by free-radical polymerisation in solid phase or solution of a) 5 to 97.4% by weight of i-amyl acrylate and/or i-amyl methacrylate and b) 0 to 89.9% by weight of (meth)acrylates whose hompolymers have a glass transition temperature of below -30 DEG C, c) 2.5 to 30% by weight of alpha , beta -monoolefinically unsaturated compounds whose homopolymers have a glass transition temperature of above - 30 DEG C, d) 0 to 10% by weight of monoolefinically unsaturated acids and/or anhydrides thereof, e) 0 to 20% by weight of further olefinically unsaturated monomers containing at least one of the following functional groups: hydroxyl, amide, epoxide, ether, ester, urethane, urea, primary, secondary or tertiary amine and ether, and f) 0.1 to 5% by weight of a copolymerisable benzophenone or acetophenone derivative, the sum of the percentages by weight x = a + b + c + d + f in each case being 100.

    15.
    发明专利
    未知

    公开(公告)号:DK155885B

    公开(公告)日:1989-05-29

    申请号:DK570484

    申请日:1984-11-30

    Applicant: BASF AG

    Abstract: Layers of adhesives which are applied onto polyolefin surfaces from aqueous dispersion exhibit improved adhesion if a dicarboxylic acid dihydrazide of 2 to 10 carbon atoms and an aqueous dispersion of an adhesive polymer are applied, preferably as a mixture, onto the polyolefin surfaces which have been pretreated by corona discharge.

    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

    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

    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.

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