Hilti Aktiengesellschaft

Dsm IP Assets B.v.

Lutz Achim Sager

Armin Pfeil

Thomas Bürgel

Jan Henderikus Udding

Agnes E Wolters

Heinz Wilhelm

Erich Leibhard

Astrid Buder

Roman Skupien

Frich Leibhard

The invention relates to two-component chemical fastening systems, the A-component containing an unsaturated polyester and a reactive diluent, and the B-component containing a peroxide and an extender, wherein the extender is either a monomeric component according to formula 1(A&#x2014;CH&#x2550;CH&#x2014;O)&#x2014;R &#x2003;&#x2003;(formula 1)or a resinous compound comprising, in a covalently built-in manner, a component having vinyl ether group(s), and the content of the peroxide in the B-component is from 0.5 to 99 wt. %. In the formula A, R and n are specified as hydrogen or Calkyl; C(hetero)-aliphatic with hydroxyl or amino groups, or poly(C)glycol with 2&#x2013;120 glycol units; and 1 to 4, respectively. The resinous compounds with built-in vinyl ether group(s) (0.5 to 50 wt. %, calculated as indicated) are obtained by reaction of a mixture of appropriate amounts of: The invention also relates to methods for preparing (the B-component) of such two-component chemical fastening systems, as well as to use of the systems for chemical fastening.

Two-component chemical fastening systems

The invention relates to peroxide compositions comprising a reactive diluent for the peroxide, wherein the diluent is either a component containing one or more vinyl ether group(s) and having a monomeric structure according to formula 1, (A&#x2014;CH&#x2550;CH&#x2014;O)&#x2014;R, or is a suitable resinous compound comprising, in a covalently built-in manner, a component containing one or more vinyl ether group(s). In the formula The resinous compounds comprising, in a covalently built-in manner, a component containing one or more vinyl ether group(s)are obtained by reaction of: The invention also relates to the preparation of such compositions and to the use of such reactive diluents for peroxides in radically curing of unsaturated polyester resins for structural applications.

Peroxide compositions with reactive diluents

A tubular anchor including a tubular member ( ) having, at its one end, a crown-shaped drilling head ( ) and, at its opposite end, a load application element a substantially cylindrical hollow element ( ) filled with a mortar mass ( ), located inside the tubular member ( ), and having, at its end facing in the direction opposite to the setting direction, an opening ( ) enabling flow of the mortar mass therethrough, and at least one longitudinal channel ( ) communicating the opening ( ) with an outlet opening ( ) provided in the region of the drilling head ( ).

Tubular anchor

A fastening element including a cylindrical body ( ) having, in its end portion remote from an end facing in a setting direction, a longitudinal bore ( ) for receiving a mortar mass, and having, at it end facing in the setting direction, at least one through-opening ( ) connecting the longitudinal bore ( ) with an outer surface of the body ( ), and a mixing device ( ) located in the longitudinal bore ( ) between the mortar mass and the through-opening ( ).

Fastening element

A mortar mixture unit (1) for chemical attachment of anchoring means or members in boreholes includes an essentially cylindrical external cartridge (2), which can be destroyed when inserting the anchoring member into a borehole containing a cartridge. The cartridge (7) contains individual ingredients of a multi-component mortar including a binder means system (6, 8) and filling agents (7). The cartridge (2) is formed of a flexible material having a volume share amounting to less than 15% of the total volume of the mortar mixture unit (1), the volume share of the binder means system (6, 8) amounts to approximately 50% to 60% of the total volume of the mortar mixture unit (1) and the volume share of the filling agents (7) amounts to approximately 35% to 70% of the total volume of the mortar mixture unit (1).

Growing community of inventors

Landsberg, Germany

Lutz Achim Sager