Abstract: The present invention relates to an aqueous dispersion comprising a solid pulverulent component A and an aqueous component B, said component A comprising a UV-curable powder coating material.

Abstract: A composition comprising: (a) from 0 to less than 1% by weight of a pigment (I) having a primary particle size of from 5 nm to 100 &mgr;m which is a solid Ia or a compound Ib which acts as cathode material in electrochemical cells or a compound Ic which acts as anode material in electrochemical cells or a mixture of the solid Ia with the compound Ib or the compound Ic, (b) more than 99 to 100% by weight of a polymeric material (II) which comprises: (IIa)from 1 to 100% by weight of a polymer or copolymer (IIa) containing reactive groups (RG) on the chain in terminal and/or lateral positions which are capable of crosslinking reactions in the presence of heat and/or with UV radiation, and (IIb) from 0 to 99% by weight of at least one polymer or copolymer (IIb) which contains no reactive groups (RG).

Abstract: The subject of the present invention is the use of a resin composition (A) comprising A1) at least one unsaturated polyester resin, A2) at least one vinyl ether having a viscosity of less than 4000 mPa·s at 25° C., A3) if desired, at least one further polymer and/or oligomer, A4) if desired, at least one curing accelerator, A5) if desired, at least one ethylenically unsaturated reactive diluent, and A6) if desired, further customary additives, as impregnating, casting and coating compositions for electrical and/or electronic components and for carrier materials for sheetlike insulating materials. The present invention additionally relates to coating compositions suitable for this purpose which can be cured with low emissions.

Abstract: The subject of the present invention is the use of a resin composition (A) comprising

Abstract: The invention relates to polyfunctionally reactive polymeric substances which contain at least two structural units of the general formulae (I) and/or (II) in the molecule and whose polymer backbone linkages are C—C bonds, ether bonds, urethane bonds, amide bonds, ketone bonds or combinations thereof. The substances are useful as binders for various applications.

Abstract: A process is described for preparing radiation-crosslinkable polymeric acrylates and methacrylates, which involves reacting an acrylate or methacrylate copolymer containing units having a reactive side group with a compound that contains a group which is capable of reacting with the reactive side group and also a group which is capable of forming free radicals under the action of actinic radiation. The preparation of the modified, photoactive polymers by polymer-analogous reaction makes it possible to do without the laborious handling of aggressive, specially synthesized monomers, especially acrylic esters. The products of the process can be employed widely as radiation-curable coating materials.

Abstract: A binder composition for a magnetic recording medium comprises at least one polyurethane having a structural unit according to the formula I 1

Abstract: The invention concerns the use of monomer-free, saturated and unsaturated polyester resins, or mixtures of saturated and unsaturated polyester resins, containing structural units of the general formulae (I) and/or (II), in which n =1-10, as low-emission binders for coatings.

Abstract: The present invention relates to a sulfonic acid compound of the formula I 1

Abstract: A binder composition for a magnetic recording medium comprises at least one polyurethane having a structural unit according to the formula I 1

Abstract: The polyester resin impregnating and coating solution comprises polyesters having structures of the formula (I) where n is from 0 to 10 and where the solution is essentially free from monomers containing acrylic, vinylic or allylic unsaturation and where the solvent employed preferably comprises aliphatic saturated C2-6 alcohols, C3-6 ketones or C3-6 carboxylic esters or mixtures thereof, the proportion of the solvent being from 5 to 60% by weight of the overall polyester resin impregnating and coating solution.

Abstract: The present invention relates to a radiation-curable binder BM consisting of a copolymer which is composed of: A) from 80 to 99% by weight of a hydroxyl-containing polyether acrylate and/or polyester acrylate A), which optionally contains a mono-, di- and/or polyamine AA) as adduct, and of B) from 1 to 20% by weight of benzophenonetetracarboxylic acid, its anhydrides and/or its esters. The invention additionally relates to processes for the preparation of the binder BM and to the use of the binders BM in radiation-curable coating compositions.

Abstract: The invention relates to solvent-free coating compositions which can be cured with low emissions and comprise, as binders, saturated and/or unsaturated polyesters whose structural units include dihydrodicyclopentadiene units of the formula (I): ##STR1## and/or oligodihydrodicyclopentadiene units of the formula (II): ##STR2## where n=1 to 10, to processes for the production of coatings using the novel coating compositions, and to the use of the coating compositions for coating metal containers, especially cans.

Abstract: The invention concerns the use of monomer-free saturated or unsaturated polyester resins or mixtures of saturated and unsaturated polyester resins containing structural units of general formulae (I) and/or (II), in which n=1-10, as impregnation, sealing and coating compounds for electrical engineering and electronic components and for carrier substances for flat insulating materials.

Abstract: The invention comprises a process for impregnating components with polymerizable impregnants which are liquid at room temperature or can be liquefied by heating and are cured by combined use of heat and high-energy radiation, wherein the components are impregnated at ambient temperature or in a preheated state and, after impregnation, are heated in the impregnant until partial gelation occurs, are treated with high-energy radiation before full curing and are then fully cured by thermal means.

Abstract: The invention relates to the use of reactive prepolymeric organic compounds, containing structural units having at least one readily abstractable hydrogen with a bond energy of not more than 397 kJ/-mol and having at least one ethylenic double bond, for crosslinking, with or without free-radical initiators, by means of heat, high-energy radiation or heat and high-energy radiation.

Abstract: The invention relates to a method of coating articles with powder coatings which contain polymers, are applied to the surface of the substrate to be coated, are melted and are crosslinked by UV irradiation, wherein the polymers employed are copolymers ofa) at least one monomer of the general formula (I) ##STR1## where R.sup.1 =H or CH.sub.3 and R.sup.2 =H, C.sub.n H.sub.2n+1 where n=from 1 to 30, or is an alicyclic, araliphatic or heterocyclic radical, hydroxyalkyl, alkoxyalkyl, glycidyl or aminoalkyl,or of the general formula (II) ##STR2## where R.sup.1 =H or CH.sub.3 and where R.sup.3 and R.sup.4 may be identical to or different from one another and are H, CH.sub.2 OH, C.sub.n H.sub.2n+1 where n=1 to 30 or CH.sub.2 OR.sup.5 where R.sup.5 =C.sub.m H.sub.2m+1 where m=1 to 12, andb) at least one copolymerizable, ethylenically unsaturated organic compound of the general formula (A) ##STR3## where R' and R" can be identical to or different from one another and are H, C.sub.p H.sub.

Abstract: Dyes of the formulaQ-X=HetwhereX is nitrogen or CH,Q is a 5- or 6-membered carbocyclic or heterocyclic radical and Het is a radical of the formula ##STR1## where Y is oxygen, sulfur, imino, C.sub.1 -C.sub.4 -alkylimino, substituted or unsubstituted phenylimino or the radical of an acidic-CH compound, A is oxygen or a radical of the formula C--U, where U is as defined in the description part, and E --is oxygen, sulfur, selenium, imino, C.sub.1 -C.sub.4 -alkylimino or substituted or unsubstituted phenylimino,are useful for thermal transfer and for dyeing or printing synthetic materials.

Abstract: A multilayer element comprising a substrate, an intermediate layer and a photopolymerizable or photocrosslinkable layer in the stated order is used for producing printing or relief plates. The intermediate layer contains a copolymer of a monomer (A) of the formula (I) or (II) and a copolymerizable monomer (B) ##STR1## where R.sup.1 is vinyl, propen-2-yl, 1-buten-2-yl or styryl or a radical R.sup.2 --O--CO--CH.dbd.CH--, R.sup.2 is an alkyl, aryl, aralkyl or cycloalkyl radical of up to 10 carbon atoms, R.sup.3 is H, methyl or ethyl and n is from zero to 5. The intermediate layer in the multilayer element has improved adhesion in the laminate. It is initially nontacky and does not become tacky until after the application of the photopolymerizable layer, as a result of the interaction with said layer. The improved adhesion in the laminate is retained even after storage and repeated use of the finished printing plates.

Abstract: Paper is produced by draining a paper stock containing process chemicals on a paper machine, a main stream of the paper stock and a dilution stream which consists of white water, contains at least 5% by weight of the process chemicals and amounts to 5-35% by volume of the total head box feed being fed via a head box to the paper machine wire. The papers thus produced have an excellent formation profile and an outstanding ash distribution.