Achim Kaffee
Achim Kaffee, Lorsch DE
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20110218270 | USE OF LINEAR TRIETHYLENTETRAMINE AS CURING AGENT FOR EPOXY RESINS - The present invention relates to an amine composition comprising linear triethylene-tetramine and one or more amine compounds selected from the group consisting of tertiary amines derived from the condensation of ethylenediamine and methyl-substituted compounds derived from linear triethylenetetramine as well as a method of production for said composition. | 09-08-2011 |
20110306702 | USE OF CYCLIC CARBONATES IN EPOXY RESIN COMPOSITIONS - 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. | 12-15-2011 |
20130143984 | PRODUCTION OF CURED EPOXY RESINS WITH FLAME-RETARDANT PHOSPHONATES - The invention relates to curable compositions which comprise epoxy resins, amino hardeners, and a phosphonate of the formula I. Addition of phosphonate of the formula I can give cured epoxy resins which have not only improved flame retardants but also an increased glass transition temperature when comparison is made with the corresponding resins without said addition. | 06-06-2013 |
20130184379 | POLYETHER AMINES USEFUL AS ACCELERANTS IN EPOXY SYSTEMS - 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. | 07-18-2013 |
20130203898 | HYPERBRANCHED POLYMERS FOR MODIFYING THE TOUGHNESS OF CURED EPOXY RESIN SYSTEMS - The invention relates to a curable composition comprising one or more epoxy compounds, one or more amino hardeners, and an addition of one or more dendritic polymers selected from the group of the dendritic polyester polymers, where the dendritic polyester polymers can be produced through an Ax+By synthesis route. | 08-08-2013 |
20150018457 | USE OF LINEAR TRIETHYLENTETRAMINE AS CURING AGENT FOR EPOXY RESINS - The present invention relates to an amine composition comprising linear triethylenetetramine and one or more amine compounds selected from the group consisting of tertiary amines derived from the condensation of ethylenediamine and methyl-substituted compounds derived from linear triethylenetetramine as well as a method of production for said composition. | 01-15-2015 |
Achim Kaffee, Osnabrueck Luestringen DE
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20140213697 | 2,2',6,6'-TETRAMETHYL-4,4'-METHYLENEBIS(CYCLOHEXYLAMINE) AS HARDENER FOR EPOXY RESINS - 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. | 07-31-2014 |
Achim Kaffee, Osnabrueck DE
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20160024344 | USE OF POLYPROPYLENEIMINE AS CURING AGENT FOR EPOXIDE RESINS - The present invention relates to the use of substantially linear polypropyleneimine as a hardener for epoxy resins, and also to a corresponding curable composition, to the curing thereof, and to the cured epoxy resin obtainable therefrom. | 01-28-2016 |
Achim Kaffee, Diepholz DE
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20160115283 | EPOXY-RESIN COMPOSITION FOR FIBER-MATRIX SEMIFINISHED PRODUCTS - 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 imidazole compound and at least one latent hardener. In said epoxy-resin composition, the amount of the imidazole compounds used is in the range from 0.007 to 0.025 mol per mole of epoxy groups of the entire composition, and the total amount of primary amine groups optionally comprised does not exceed a proportion of 0.09 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. The fiber-matrix-semifinished-product composition can be produced via mixing of the constituents, whereupon the composition thickens. The resultant thickened product (semisolid fiber-matrix semifinished product) features comparatively short maturing time and comparatively long available operating time. The invention also relates to the corresponding semisolid fiber-matrix composite, in particular to the semisolid SMC and to the corresponding cured fiber-matrix semifinished product, in particular the cured SMC. Finally, the invention also relates to a screening process for identifying epoxy-resin-based compositions which are suitable for use as thermoset matrix for producing SMC. | 04-28-2016 |