Hilti Aktiengesellschaft

Thomas Burgel

Gerald Gaefke

Michael Leitner

Rainer Hettich

Monika Monch

A resin mixture is described, comprising at least one compound that can be radically polymerized, at least one reactive diluent selected from 1,3-dicarbonyl compounds, and at least one polymerization inhibitor, selected from stable N-oxyl-radicals or 4-hydroxy-3,5-di-tert-butyl toluene, with the molar ratio of at least one 1,3-dicarbonyl compound and the polymerization inhibitor ranging from 30:1 to 150:1, a reaction resin mortar comprising said resin mixture, a two-component or multi-component system, as well as the use for construction purposes, particularly for the chemical fastening in mineral undergrounds.

Resin mixture, reaction resin&#x2014;mortar, multi-component mortar system, and their application

The invention relates to a resin mixture having a modified epoxy (meth)acrylate resin as the base resin, and optionally at least one reactive diluent, at least one stabilizer, and at least one accelerator, wherein the modified epoxy (meth)acrylate resin can be obtained by reacting organic compounds having epoxide groups with (meth)acrylic acid, and then by the partial esterification of the &#x3b2;-hydroxyl-groups, the same formed during the reaction, with the anhydride of a saturated dicarboxylic acid, to reactive resin mortars containing the same, and to the use thereof for the purpose of chemical fastening, by means of which it is possible to manufacture products which are not subject to labeling requirements and which additionally provide high bond strength.

Resin mixture based on epoxy(meth)acrylate resin, and the use thereof

A curing agent component is described for an at least two-component mortar composition for the chemical fastening technique, containing at least one free radical-forming agent as curing agent for an organic resin component, water and at least one water-soluble, ethylenically unsaturated polyethylene glycol derivative, which can be copolymerized with the organic resin component and has a solubility in water at 25&#xb0; C. of at least 10 g in 100 gram of water and has the structure given by the general formula I:R&#x2014;A&#x2014;O&#x2014;R&#x2003;&#x2003;(I)in which Rrepresents a group having the formula CH&#x2550;CH&#x2014;CH&#x2014;, CH&#x2550;CH&#x2014;CO&#x2014;O&#x2014; or CH&#x2550;C(CH)&#x2014;CO&#x2014;O&#x2014;, Rrepresents hydrogen, an alkyl group with 1 to 6 carbon atoms, a sulfonate group or a group having the formula CH&#x2550;CH&#x2014;CH&#x2014;, CH&#x2550;CH&#x2014;CO&#x2014;O&#x2014; or CH&#x2550;C(CH)&#x2014;CO&#x2014;O&#x2014;, and A represents a linear or branched, homopolymeric or copolymeric, optionally substituted polyoxyalkylene group. Furthermore, methods are described for producing and using the curing agent component in a two-component or multi-component mortar composition for fastening construction elements in a solid substrate.

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Landsberg am Lech, Germany

Thomas Burgel