Abstract: The invention relates to compositions containing at least one solid epoxide resin A, at least one polymer B of formula (I), at least one thixotropic agent C made from a urea derivative and at least one curing agent for epoxide resins D activated by high temperatures. The compositions are particularly suitable for use as adhesives. Low-temperature impact-resistant adhesives can be produced for use in particular as structural adhesives.

Abstract: In the case of a reinforcing system for reinforcing a cavity of a structural element, a support element is connected to the structural element in the structural element for reinforcement purposes. The support element has channels, an adhesive is disposed in the cavity between the support element and the structural element, and the adhesive can be introduced into the cavity between the support element and the structural element by means of the channels.

Abstract: Embodiments relate to viscosifiers that are terminated polymers that have functional terminal groups. The polymers being pre-extended by polyepoxides and being reacted to give polymers that are terminated by other functional groups. The viscosifiers have a low content in educts or educt descendants that deteriorate the properties of compositions and considerably reduce or even exclude the formation of high-molecular addition products so that the products obtained have low viscosity and good storage stability.

Abstract: The present invention relates to epoxy group-terminated polymers of the formula (I). Said epoxy group-terminated polymers are suited extremely well as impact resistance modifiers, particularly in epoxy resin compostions. They are particularly suited for use in heat-curing epoxy resin adhesives. It has been found that such epoxy resin compostions not only have excellent mechanical properties and high glass transition temperatures, but also above all improved impact resistance properties, both at room temperature and at low temperatures.

Abstract: Described are heat hardening compounds which contain at least one epoxy resin, A, with on average more than one epoxy group per molecule, at least one impact-strength modifier, B, at least one crack promoter, C, as well as at least one hardener, D, for epoxy resin, which is activated by raised temperature. Silicate layers such as mica or talc and graphite are particularly suitable as crack promoters, C.

Abstract: The invention relates to differently blocked polyurethane polymers of formula, to their use as impact resistance modifiers, to heat-curable epoxy resin compositions containing said impact resistance modifiers and to methods for the production of said compositions. The invention also relates to bonding methods using said compositions and to articles produced by said methods.

Abstract: The invention relates to a filler material, especially for filling cavities, especially of structural elements, to a method of production and to a structural element. The inventive filler material comprises particles that are coated with a reactive duroplast, whereby the reactive duroplast is non-viscous at room temperature when not yet reacted.

Abstract: Two-component adhesives (K), which includes two components K1 and K2. Component K1 includes at least one epoxy resin A with more than one epoxy group per molecule on average; at least one epoxy adduct B with more than one epoxy group per molecule on average that is an epoxy adduct of type B1 and optionally combined with an epoxy adduct of type B2; at least one reaction product F between an epoxy adduct B and a compound C, which has at least two isocyanate groups, in addition to at least one curing agent D for epoxy resins, which is activated by increased temperature. The component K2 comprises a compound E, which includes at least two isocyanate groups.

Abstract: The invention relates to compositions containing at least one epoxide adduct A that comprises an average of more than one epoxide group per molecule, at least one polymer B of formula (I), at least one thixotropic agent C based on a urea derivative in a non-diffusing carrier material, and at least one hardener D for epoxy resins, which is activated at an increased temperature. Said composition is used especially as an adhesive and is provided with an extraordinarily high impact peel working value, especially at low temperatures. The invention further relates to epoxide group-terminal impact strength modifiers of formula (I), which significantly increase the impact resistance in epoxy resin compositions, particularly two-component epoxy resin compositions.

Abstract: The present invention relates to compositions which contain at least one epoxide adduct A having on average more than one epoxide group per molecule, at least one polymer B of the formula (I), at least one thixotropic agent C, based on a urea derivative in a nondiffusing carrier material, and at least one curing agent D for epoxy resins, which is activated by elevated temperature. This composition serves in particular as an adhesive and has an extremely high dynamic resistance to cleavage, in particular at low temperatures. The invention furthermore relates to impact strength modifiers terminated with epoxide groups and of the formula (I). It has been found that these novel impact strength modifiers result in a significant increase in impact strength in epoxy resin compositions, in particular in two-component epoxy resin compositions.

Abstract: A filler mixture comprising an organophilic layer silicate obtainable by treatment of a natural or synthetic layer silicate with a swelling agent selected from sulfonium, phosphonium and ammonium compounds (salts of melamine compounds and cyclic amidine compounds being excluded as ammonium compounds) and a mineral filler different therefrom, yields, in combination with thermosetting resins, nanocomposites having improved mechanical properties.

Abstract: An epoxy resin mixture is prepared by a) the reaction of (i) a diglycidyl compound, (ii) a bisphenol compound and (iii) at least one monophenol at temperatures of from 160 to 170° C. in the presence of an advancement catalyst that can be thermally deactivated, (b) upon completion of the reaction, the catalyst is deactivated by heating to a temperature of approximately 180° C. wherein (A1) one or more epoxy resins having an epoxy functionality of greater than two is added, and c) the resulting epoxy resin mixture is homogenized at that temperature.

Abstract: Organophilic phyllosilicates which have been prepared by treating a naturally occurring or synthetic phyllosilicate, or a mixture of such silicates, with a salt of a quaternary or other cyclic amidine compound, or with a mixture of such salts; polymeric systems, in particular thermoplastic polymers and thermosetting polymer systems, preferably epoxy resins, polyurethanes and rubbers, which comprise novel organophilic phyllosilicates, and also shapable moulding materials and finished mouldings in the form of composite materials, in particular in the form of nanocomposites.

Abstract: A powder coating composition comprising(A) a solid epoxy resin mixture that comprises at least one epoxy resin component (A1) and one epoxy resin component (A2) and(B) a free-carboxyl-group-containing polyester in an amount sufficient for the full cure of the composition,in which the epoxy resin component (A1) consists of one or more epoxy resins and has overall a mean epoxy functionality that is greater than 2,wherein the epoxy resin component (A2) consists of one or more advanced epoxy resins each of which has a mean epoxy functionality of at least 1.2 but less than 1.95 and is the product of a reaction in which (i) at least one diglycidyl compound is simultaneously reacted with (ii) at least one bisphenol compound and (iii) at least one monophenol as starting materials, and the difference between the mean epoxy functionality of the epoxy resin mixture (A) and the mean epoxy functionality of component (A2) of the mixture is at least 0.05 but less than 0.8.

Abstract: Epoxy resins which are obtainable by a process in which, first of all(a) by reacting(A1) at least one substance selected from the substances of the formula (I) and of the formula (II): ##STR1## in which Alc is the radical of a diol which has been freed fromI ts hydroxyl groups and comprises 2 to 20 carbon atoms,Ac is the radical of a dicarboxylic acid which has been freed from its carboxyl groups and comprises 2 to 20 carbon atoms,[Ph] is the radical of a difunctional phenolic compound which has been freed from its phenolic hydroxyl groups and has 6 to 20 carbon atoms, andc is a number greater than 1 but not more than 2, with(A2) at least one liquid diglycidyl ether based on a first bisphenol compound in an amount chosen so that there are more than two equivalents of glycidyl groups of component (A2) for a total of one equivalent of carboxyl and phenolic hydroxyl groups of component (A1),a pre-advanced diglycidyl ether resin is formed in dispersion in the liquid diglycidyl ether of which there is at least one

Abstract: Curable compositions, which comprise the following components:(A) a polymer component consisting of one or more than one of the following components:polymers based on acrylate monomers and/or methacrylate monomers containing free carboxyl groups, and carboxyl-terminated polyesters;(B) a crosslinker for component (A) selected from the group consisting of:(B1) one or more than one compound having a molecular weight of less than 800 and containing at least two (2-oxo-1,3-dioxolan-4-yl)methyl groups per molecule, and(B2) a mixture consisting of one or more than one compound having a molecular weight of less than 800 and containing at least two (2-oxo-1,3-dioxolan-4-yl)methyl groups per molecule, and of one or more than one epoxy resin, at least 60 percent of the total number of (2-oxo-1,3-dioxolan-4-yl)methyl groups and epoxy groups of the mixture being (2-oxo-1,3-dioxolan-4-yl)methyl groups;(C) a catalyst for accelerating the crosslinking reaction between the components (A) and (B), and(D) a solvent for the comp

Abstract: 1. A solid composition comprising(a) a solid oligomeric, cationically polymerisable polyglycidyl ether or polyglycidyl ester, a mixture of a solid oligomeric, cationically polymerisable polyglycidyl ether or polyglycidyl ester and a liquid or crystalline monomeric mono-, di- or polyepoxy resin, or a mixture of a solid oligomeric, cationically polymerisable polyglycidyl ether or polyglycidyl ester and a cyclic acetal, said oligomeric polyglycidyl ether or polyglycidyl ester and the mixtures containing the oligomeric polyglycidyl ether or polyglycidyl ester having a glass transition temperature (T.sub.G) higher than 35.degree. C.,(b) a multifunctional nucleophilic chain transfer agent,(c) 0.

Abstract: The action of thermoplastic polymers to whose polymer backbone aliphatic or cycloaliphatic groups are bonded via a group --O--, --O--CO--, --CO--OR.sup.22 --OCO-- or --CO--O--, said aliphatic or cycloaliphatic groups being substituted by Cl, Br and/or iodine in the .alpha.-, .beta.-, .gamma.- or .omega.-position, on an unsubstituted or substituted tetrathio-, tetraseleno- or tetratelluro-naphthalene or -tetracene contained in this polymer gives electrically conducting compositions by the formation of charge transfer complexes. These compositions are suitable for the production of antistatic or electrically conducting mouldings, sheets, filaments, fibres, coatings and composites.

Abstract: A formulation comprisinga) at least one polythiophene in oxidised polycationic form and containing structural repeating units of formula I ##STR1## wherein R.sub.1 and R.sub.2 are each independently of the other linear or branched C.sub.1 -C.sub.18 alkyl or C.sub.2 -C.sub.18 alkoxyalkyl; or are C.sub.3 -C.sub.8 cycloalkyl, phenyl or benzyl which are unsubstituted or substituted by C.sub.1 -C.sub.6 alkyl, C.sub.1 -C.sub.6 alkoxy or halogen; or R.sub.1 and R.sub.2, taken together, are linear C.sub.1 -C.sub.8 alkylene which is unsubstituted or substituted by C.sub.1 -C.sub.6 alkyl, C.sub.1 -C.sub.6 alkoxy, halogen, C.sub.3 -C.sub.8 cycloalkyl, phenyl, benzyl, C.sub.1 -C.sub.4 alkylphenyl, C.sub.1 -C.sub.4 alkoxyphenyl, halophenyl, C.sub.1 -C.sub.4 alkylbenzyl, C.sub.1 -C.sub.

Abstract: Compounds of the formula I ##STR1## in which X is O, S, SO, SO.sub.2 or NR.sub.13, R.sub.13 is, for example, methyl, and R.sub.1 to R.sub.12, independently of one another, are, for example, H, C.sub.1 -C.sub.12 alkyl, C.sub.1 14 C.sub.12 alkoxy, halogen or --CN. The compounds are photosensitive and photochromic and as suitable are photosensitizers and simultaneously as colour indicators, and as photoswitchable colour filters.