Abstract: The invention relates to a synthetic resin, based on partly cross-linked poly(meth)acrylate-urethane-(meth)acrylates in urethane(meth)acrylates, obtainable by: (a) provision of (meth)acrylate monomers (I), which have no groups reactive to isocyanate groups and (meth)acrylate monomers (II), with (a) group(s) reactive to isocyanate groups, (b) polymerization of the (meth)acrylate monomers (I) and (II) to give a poly(meth)acrylate (III), with groups reactive to isocyanate groups, (c) reaction of the poly(meth)acrylate (III) with an isocyanate compound (IV), with more than one isocyanate group, in such a manner that 5 to 40% of the isocyanate groups of the isocyanate compound (IV) react with the above groups reactive to isocyanate groups, whereby partial cross-linking of (III) with an increase in weight average molecular weight by a factor of 2 to 20 occurs, in which one given (IV) reacts with more than one of the isocyanate groups thereof with more than one given (III) and (d) reaction of the compound obtained i

Abstract: Composition comprising (a) at least one component selected from phenolic resins, amino resins, polyfunctional isocyanates and derivatives thereof, and (b) at least one cyclopentadiene adduct as an additional component obtainable by reacting at least one unsaturated ester product with an optionally substituted cyclopentadiene, wherein the unsaturated ester product is obtainable by reacting an alcohol component, comprising a mono- or polyhydric alcohol, with a carboxylic acid component comprising a mono- or polybasic carboxylic acid or a derivative thereof, with the proviso that the mono- or polyhydric alcohol and/or the mono- or polybasic carboxylic acid comprise at least one non-aromatic double bond and with the proviso that the mono- or polyhydric alcohol is polyhydric and/or the mono- or polybasic carboxylic acid is polybasic, wherein the component (b) comprises functional groups (B) which can enter into a chemical bond with the functional groups (A) of component (a).

Abstract: The present invention relates to polypropylene film-adhesion promoter-metal laminates, adhesion promoter used being polypropylene modified with carboxyl groups and/or anhydride groups. Polypropylene random copolymers of 90 to 99% by weight, preferably 93 to 99% by weight, of propylene and 1 to 10% by weight, preferably 1 to 7% by weight, of comonomers, having a molecular weight distribution M.sub.w :M.sub.n in the range from 2 to 10, preferably 3 to 6, and a melt flow index MFI 230.degree. C./2.16 kg in the range of 1 to 20 g/10 min, preferably in the range from 4 to 15 g/10 min, are used for the production of the polypropylene film.

Abstract: Thermoplastics film containing inorganic fillers, metal/plastics composite containing inorganic fillers and process for the production thereof.The present invention relates to thermoplastics films, which contain at least 0.1% by weight, preferably 0.5 to 6% by weight, based on the total weight of the mixture of plastics and filler, of one or more metal powders, selected from aluminum powder, magnesium powder, zinc powder and manganese powder. The invention further relates to metal/plastics composites containing these metal powders, and processes for the production of the thermoplastics films and the metal/plastics composites. The plastics films and the metal/plastics composites are used for producing packaging containers.

Abstract: The subject of the present invention is a process for the production of closures, in which process a sealing composition is applied and baked on the inside of the closures, wherein a sealing composition is applied which containsA) 20 to 95% by weight of at least one compound having on average more than two isocyanate groups per molecule and/or of a diisocyanate prepolymer, the isocyanate groups being blocked,B) 1.5 to 30% by weight of at least one diamine and/or polyamine,C) 0 to 78.5% by weight of at least one plastic and/or elastic and/or reactive organic polymer,D) 0 to 60% by weight of pigments and/or fillers,E) 0 to 50% by weight of one or more reactive diluents andF) 0 to 20% by weight of auxiliaries and additives, the sum of the proportions by weight of the components A to F being 100% in each case.The present invention also relates to the closures produced by the process according to the invention and to packaging containers which contain said closures.

Abstract: In order to improve a heat storage system, comprising a heat source, a heat storage device and a heat sink, between which heat is transferred by means of a heat transporting medium, such that a steam-powered engine which is to be operated with overcritical steam of the heat transporting medium can be operated with an inexpensive and simple construction of the heat storage system, it is suggested that the heat sink comprise a steam-powered engine to be operated with overcritical steam of the heat transporting medium, that the heat storage device comprise a Ruths storage device storing the heat transporting medium condensed in the form of a liquid bath and having a storage temperature below the critical temperature of the heat transfer medium and a superheat storage device connected with the Ruths storage device and having a storage temperature above the critical temperature of the heat transporting medium, that the heat storage system be operable during discharge such that in the Ruths storage device steam res

Abstract: To improve a heat storage system comprising a heat source, a heat storage device and a heat sink between which heat is transported by a heat transporting medium such that satisfactory storage and utilization of heat by a heat transporting medium near its critical temperature is possible, it is proposed that the heat storage device be designed as a Ruths storage device, with a bath of liquid required as heat transporting medium for the Ruths storage device being provided in a storage volume, that the storage volume contain in addition to the bath of liquid a latent heat storage material, that the storage temperature be selected so as to lie in the range of the critical temperature of the heat transporting medium and below it, and that the heat storage system be operable in such a way that during the discharging of the heat storage device via the heat sink, the bath of liquid heat transporting medium constantly surrounds the latent heat storage material essentially with thermal contact.

Abstract: A modified polycarboxylic acid polyanhydride curing agent suitable for curing epoxy resins which is prepared by reacting a polycarboxylic acid anhydride with a monohydroxy compound ROH; and coating compositions, comprising the modified curing agent and a solution of an epoxy resin to be cured, which have improved storage stability.

Abstract: Coating lacquers, particularly useful for coating cans, comprise an epoxide resin, a polycarboxylic acid anhydride curing agent, an organic solvent and an accelerator derived from melamine, benzoguanamine or glycoluril. Particularly useful accelerators are the formaldehyde condensates of these materials and their ethers. The coatings are non-toxic and are cured at temperatures lower than conventional.