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    • 1. 发明公开
    • PROCESS FOR THE PREPARATION OF ALKYL BENZOYLACRYLATES
    • 制备烷基苯甲酰丙酸酯的方法
    • EP1363869A2
    • 2003-11-26
    • EP02701493.5
    • 2002-02-26
    • Clariant (France) S.A.
    • SIDOT, Christian
    • C07C67/08
    • C07C67/08C07C69/738
    • Process for the preparation of alkyl benzoylacrylates of formula (I) where R = alkyl, in which the reaction is carried out in an acid medium in the same reactor, without isolating the intermediate products, as follows: condensation of acetophenone with glyoxylic acid, elimination of a water/acetophenone mixture, elimination of the excess acetophenone, esterification with an alcohol in the presence of a strong acid, addition of a solvent, elimination of a mixture constituted by water, solvent and alcohol, dehydration by azeotropic distillation of the water, neutralization of the strong acid with a basic aqueous solution, decanting and concentration of the organic phase and recovery of the sought final product of formula (I).
    • 其中R =烷基的式(I)烷基苯甲酰丙烯酸烷基酯的制备方法,其中反应在相同反应器中的酸性介质中进行,不分离中间产物,如下所示:苯乙酮与乙醛酸的缩合,消除 的水/苯乙酮混合物,除去过量的苯乙酮,在强酸存在下用醇酯化,加入溶剂,除去由水,溶剂和醇构成的混合物,通过共沸蒸馏水脱水, 用碱性水溶液中和强酸,滗析并浓缩有机相并回收所需的式(I)终产物。
    • 3. 发明公开
    • Silico-acrylic compositions, method for their preparation and use
    • 硅氧烷 - 丙烯酸组合物,其制备和使用方法
    • EP1142917A2
    • 2001-10-10
    • EP01810328.3
    • 2001-04-02
    • Clariant (France) S.A.
    • Wilhelm, DidierEranian, ArmandVu, Ngoc CanVincent, Philippe
    • C08F222/10C08F230/08C09D4/00C08F290/14C09D4/06
    • C09D4/00C08F222/1006C08F230/08C08F290/142C09D4/06C08F222/20
    • Fluid silico-acrylic compositions, stable in the long term, polymerizable thermally and by radiation, by mechanism giving rise to free radicals, with a very low water (less than 1%) and volatile solvent content, containing silica, a silane, and a multifunctional acrylic monomer, in which the silica is in the form of indivualised particles with an average diameter with the range 9 and 100 nm, not interconnected by siloxane bonds, the silane is a vinyl silane with the formula (I)

              H 2 C=CH - Si(OR) 3      (I)

      in which R represents a methyl or ethyl radical, and the multifunctional (meth)acrylic monomer is an alkoxylated (meth)acrylate, method for preparation and use for the development of anti-scratch transparent and uncoloured varnishes, obtained by polymerization giving rise to free radicals by radiation (UV, electron bundles) or thermally.
    • 流体硅 - 丙烯酸组合物长期稳定,可热聚合和辐射聚合,通过机理产生自由基,具有非常低的水分(小于1%)和挥发性溶剂含量,含有二氧化硅,硅烷和 多官能丙烯酸单体,其中二氧化硅为平均直径范围为9-100nm且不通过硅氧烷键相互连接的单个颗粒形式,硅烷为具有式(I)的乙烯基硅烷H 2 C = CH-Si 其中R代表甲基或乙基,并且多官能(甲基)丙烯酸单体为烷氧基化(甲基)丙烯酸酯的(OR)3(I),用于开发抗划痕透明和未着色清漆的方法, 通过聚合获得通过辐射(UV,电子束)或热引起自由基。