Abstract: The present invention relates to a resin composition, comprising (a) an epoxy resin; (b) a curing agent comprising the structure of formula C1; (c) an inorganic filler; wherein RC1 is (a) a siloxane group of formula C1a or (b) or both a siloxane group of formula C1a and an ester group of formula C1b; RC2 is selected from a bulky C4 to C12 alkyl group comprising at least one tertiary or quaternary carbon atom; RC11, RC12, RC13 are independently selected from methyl, ethyl and 1-propyl; RC14 is selected from a linear or branched C1 to C8 alkyl; XC1 is selected from a divalent C1 to C4 alkanediyl group; and n is an average number of repeating units and is from 1.05 to 200.

Abstract: Process for the removal of volatile compounds from a tackifier comprising a resin with repeating units of formula I wherein R1 is a linear or branched alkylen group with 1 to 10 carbon atoms and R2 is a linear or branched, saturated or unsaturated N aliphatic hydrocarbon group with up to 20 carbon atoms, and optionally a plasticizer, wherein the tackifier is passed through at least one evaporator as film and the volatile compounds are removed from the film.

Abstract: A tackifier contains a resin with repeating units of formula I wherein R1 is a linear or branched alkylene group with 1 to 10 carbon atoms and R2 is a linear or branched, saturated or unsaturated aliphatic hydrocarbon group with up to 20 carbon atoms. The tackifier also contains an amino resin with on average at least two hydroxy or ether groups per molecule.

Abstract: A resin composition, comprising (a) at least one epoxy resin, and (b) at least one siloxane-type curing agent of formula C22 or C31 (C22) (C31) wherein the resin composition does essentially not contain any fluoride or bromide.

Abstract: Process for the removal of volatile compounds from a tackifier comprising a resin with repeating units of formula I wherein R1 is a linear or branched alkylen group with 1 to 10 carbon atoms and R2 is a linear or branched, saturated or unsaturated N aliphatic hydrocarbon group with up to 20 carbon atoms, and optionally a plasticizer, wherein the tackifier is passed through at least one evaporator as film and the volatile compounds are removed from the film.

Abstract: A curable composition comprises a) at least one epoxide compound E having at least two epoxide groups; b) at least one amine A having at least two amine hydrogens; and c) at least one acrylic ester U; wherein the epoxide compound E comprises at least one epoxide compound E?, the amine A comprises at least one amine A?, and the acrylic ester U comprises at least one acrylic ester U? whose Hansen solubility parameters for the dipole forces ?p and for the specific interactions ?h satisfy the following conditions: ( ? p ? ( U ? ) - ? p ? ( E ? ) ) 2 + ( ? h ? ( U ? ) - ? h ? ( E ? ) ) 2 ? 1.5 ? ? and ( ? p ? ( U ? ) 2 + ? h ? ( U ? ) 2 ) - ( ? p ? ( A ? ) 2 + ? h ? ( A ? ) 2 ) ? 0 . A suitable choice of the Hansen solubility parameters of the constituents ensures that the acrylic ester is incorporated covalently into the curing material, preventing subsequent evaporation of the diluent.

Abstract: The present invention relates to an epoxy-resin composition as matrix component for sheet molding compounds (SMC) and/or bulk molding compounds (BMC), comprising a resin component comprising at least one epoxy resin and a hardener component comprising at least one aminoalkylimidazole compound, at least one diazabicycloalkylen compound and at least one latent hardener. In said epoxy-resin composition, the amount of the aminoalkylimidazole compounds used is in the range from 0.007 to 0.025 mol per mole of epoxy groups of the entire composition. The invention also relates to a fiber-matrix-semifinished-product composition (SMC composition or BMC composition) with, as matrix component, the epoxy-resin composition mentioned, and with, suspended therein, short reinforcement fibers with an average length of from 0.3 to 5.0 cm.

Abstract: Compounds of the formula in which R1 is an organic radical having a (meth)acryloyl group and R2, R3, and R4 independently of one another are an H atom or a C1 to C10 alkyl group.

Abstract: A curable composition comprises a) at least one epoxide compound E having at least two epoxide groups; b) at least one amine A having at least two amine hydrogens; and c) at least one acrylic ester U; wherein the epoxide compound E comprises at least one epoxide compound E?, the amine A comprises at least one amine A?, and the acrylic ester U comprises at least one acrylic ester U? whose Hansen solubility parameters for the dipole forces ?p and for the specific interactions ?h satisfy the following conditions: ?{square root over ((?p(U?)??p(E?))2+(?h(U?)??h(E?))2)}?1.5 and ?{square root over ((?p(U?)2??h(U?)2))}??{square root over ((?p(A?)2+?h(A?)2))}?0. A suitable choice of the Hansen solubility parameters of the constituents ensures that the acrylic ester is incorporated covalently into the curing material, preventing subsequent evaporation of the diluent.

Abstract: Compounds of the formula in which R1 is an organic radical having a (meth)acryloyl group and R2, R3, and R4 independently of one another are an H atom or a C1 to C10 alkyl group.

Abstract: The present invention relates to new uses of condensation resins made from urea, formaldehyde, and CH-acidic aldehydes.

Abstract: The invention is directed to a curable composition, which comprises an epoxy resin mixture, wherein the epoxy resin mixture comprises a) an epoxy resin; b) diethyl methyl benzene diamine (DETDA) as hardener; c) at least one compound selected from the group consisting of 1,8-diazabicyclo[5.4.0]undec-7-ene (DBU) and 1,5-diazabicyclo[4.3.0]non-5-ene (DBN) as catalyst.

Abstract: A shaped body comprising at least one solid material and a cured epoxy resin wherein the cured epoxy resin is prepared from an epoxy resin composition containing at least one epoxy resin having at least one epoxy group per molecule; at least one curing agent selected from cyanoalkylated polyamines of formula (A) A(NH—X—CN), wherein A is a group selected from aryl, arylalkyl, alkyl, and cycloalkyl, wherein A does not contain a primary amino group, X is alkylene having 1 to 10 C-atoms, and n?2; and at least one accelerator selected from tertiary amines, imidazoles, guanidines, urea compounds, and Lewis acids.

Abstract: The present invention relates to the speeded curing of a composition comprising an epoxy compound, an amino or anhydride hardener and a high-branched polyether amine accelerant. The high-branched polyether amine may have terminal hydroxyl groups (polyol) and/or amino groups (amino modified). The amino-modified high-branched polyether amines are obtainable by subsequently modifying the terminal hydroxyl groups of high-branched polyether amine polyols.

Abstract: The present invention relates to new uses of condensation resins made from urea, formaldehyde, and CH-acidic aldehydes.

Abstract: Epoxy resin compositions comprising a) epoxy resins and b) at least one 2-oxo-[1,3]dioxolane derivative of the formula I in which one or two of the radicals R1 to R4 are an electron-withdrawing organic group having 1 to 20 C atoms or an electron-withdrawing heteroatom, and the remaining radicals R1 to R4 are independently of one another an H atom or a hydrocarbon group having 1 to 20 C atoms.

Abstract: A process for curing epoxy resins which comprises curing epoxy resin compositions comprising a) epoxy resins and b) a compound of the general formula I in which R1 and R2 independently of one another are hydrogen, C1-C6-alkyl, C1-C4-alkoxy-C1-C4-alkyl, C5-C6-cycloalkyl, phenyl, phenyl-C1-C4-alkyl, C2-C6-alkenyl or C2-C6-alkynyl, or R1 and R2 together are a C3-C11-alkylene group; R3 and R4 independently of one another are hydrogen, C1-C6-alkyl, C1-C4-alkoxy-C1-C4-alkyl, C5-C6-cycloalkyl, phenyl, phenyl-C1-C4-alkyl, C2-C6-alkenyl or C2-C6-alkynyl, or R3 and R4 together are a C4-C6-alkylene group; by adding amino hardeners, and the curing takes place in the presence of a compound of the following formula II in which at least one of the radicals R11, R12 and R13 is a hydrocarbon group having 1 to 10 C atoms, which is substituted with a hydroxyl group and optionally remaining radicals R11 to R13 are an unsubstituted hydrocarbon group having 1 to 10 C atoms.

Abstract: The present invention relates to a curable composition which comprises epoxy resin, epoxy-group-bearing reactive diluent and the hardener 2,2?,6,6?-tetramethyl-4,4?-methylenebis(cyclohexylamine), curing thereof, and the cured epoxy resin obtainable therefrom, and the use of 2,2?,6,6?-tetramethyl-4,4?-methylenebis(cyclohexylamine) as a hardener for epoxy resins in curable compositions with epoxy-group-bearing reactive diluent.

Abstract: The present invention relates to the use of cyclic carbonates of the formula I or a mixture thereof in epoxy resin compositions and also to epoxy resin compositions which comprise such cyclic carbonates. in which R1 and R2 independently of each other are hydrogen, C1-C6-alkyl, C1-C4-alkoxy-C1-C4-alkyl, C5-C6-cycloalkyl, phenyl, phenyl-C1-C4-alkyl, C2-C6-alkenyl or C2-C6-alkynyl, or R1 and R2 together are a C3-C11-alkylene group; R3 and R4 independently of each other are hydrogen, C1-C6-alkyl, C1-C4-alkoxy-C1-C4-alkyl, C5-C6-cycloalkyl, phenyl, phenyl-C1-C4-alkyl, C2-C6-alkenyl or C2-C6-alkynyl, or R3 and R4 together are a C4-C6-alkylene group; or mixtures thereof, as additives in epoxy resin compositions.

Abstract: A process for curing an epoxy resin composition containing an epoxy resin and a compound of the general formula I: where R1 and R2 independently are hydrogen, C1-C6-alkyl, C1-C4-alkoxy-C1-C4-alkyl, C5-C6-cycloalkyl, phenyl, phenyl-C1-C4-alkyl, C2-C6-alkenyl or C2-C6-alkynyl, or R1 and R2 together are a C3-C11-alkylene group; and where R3 and R4 independently are hydrogen, C1-C6-alkyl, C1-C4-alkoxy-C1-C4-alkyl, C5-C6-cycloalkyl, phenyl, phenyl-C1-C4-alkyl, C2-C6-alkenyl or C2-C6-alkynyl, or R3 and R4 together are a C4-C6-alkylene group. The process includes adding amino hardeners, where 0.1% to 50% by weight of the amino hardeners are aliphatic, cycloaliphatic or aromatic amine compounds having 1 to 4 primary amino groups and optionally further functional groups, selected from secondary amino groups, tertiary amino groups, and hydroxyl groups.